package ckprompt

import (
	"bytes"
	"context"
	"errors"
	"io"
	"reflect"
	"strings"
	"testing"

	commandkit "gitea.maximumdirect.net/eric/CommandKit"
	"gitea.maximumdirect.net/eric/CommandKit/integrations/ckconfig"
	promptkit "gitea.maximumdirect.net/eric/promptkit"
	"go.yaml.in/yaml/v4"
)

func newPromptTestApp(t *testing.T, commands ...commandkit.Command) *commandkit.App {
	t.Helper()
	app, err := commandkit.New(commandkit.Identity{Name: "example"}, commands...)
	if err != nil {
		t.Fatal(err)
	}
	return app
}

func TestCommandBuildsIndependentOptionalTrees(t *testing.T) {
	promptOnly := newPromptTestApp(t, Command(Suite[struct{}, struct{}]{InspectPrompt: func(context.Context, PromptRequest, struct{}, struct{}) (commandkit.Acquired[*promptkit.PromptInspection], error) {
		return commandkit.Acquired[*promptkit.PromptInspection]{}, errors.New("unused")
	}}))
	var output bytes.Buffer
	outcome := promptOnly.Execute(context.Background(), []string{"help", "promptkit", "show"}, commandkit.Streams{Out: &output, Err: io.Discard})
	if outcome.Kind != commandkit.OutcomeSuccess || !strings.Contains(output.String(), "\n  prompt ") || strings.Contains(output.String(), "\n  profile ") || strings.Contains(output.String(), "requirements") || strings.Contains(output.String(), "config") {
		t.Fatalf("prompt-only help = (%#v, %q)", outcome, output.String())
	}

	profileOnly := newPromptTestApp(t, Command(Suite[struct{}, struct{}]{InspectProfile: func(context.Context, ProfileRequest, struct{}, struct{}) (commandkit.Acquired[*promptkit.ProfileInspection], error) {
		return commandkit.Acquired[*promptkit.ProfileInspection]{}, errors.New("unused")
	}}))
	output.Reset()
	outcome = profileOnly.Execute(context.Background(), []string{"help", "promptkit", "show"}, commandkit.Streams{Out: &output, Err: io.Discard})
	if outcome.Kind != commandkit.OutcomeSuccess || !strings.Contains(output.String(), "\n  profile ") || strings.Contains(output.String(), "\n  prompt ") {
		t.Fatalf("profile-only help = (%#v, %q)", outcome, output.String())
	}

	both := Command(Suite[struct{}, struct{}]{
		InspectPrompt: func(context.Context, PromptRequest, struct{}, struct{}) (commandkit.Acquired[*promptkit.PromptInspection], error) {
			return commandkit.Acquired[*promptkit.PromptInspection]{}, nil
		},
		InspectProfile: func(context.Context, ProfileRequest, struct{}, struct{}) (commandkit.Acquired[*promptkit.ProfileInspection], error) {
			return commandkit.Acquired[*promptkit.ProfileInspection]{}, nil
		},
		InspectRequirements: func(context.Context, RequirementsRequest, struct{}, struct{}) (commandkit.Acquired[*promptkit.RequirementInspection], error) {
			return commandkit.Acquired[*promptkit.RequirementInspection]{}, nil
		},
		ListPrompts: func(context.Context, ckconfig.Selection, struct{}, struct{}) (commandkit.Acquired[[]promptkit.PromptIdentity], error) {
			return commandkit.Acquired[[]promptkit.PromptIdentity]{}, nil
		},
		ListProfiles: func(context.Context, ckconfig.Selection, struct{}, struct{}) (commandkit.Acquired[[]string], error) {
			return commandkit.Acquired[[]string]{}, nil
		},
	})
	all := newPromptTestApp(t, both)
	output.Reset()
	outcome = all.Execute(context.Background(), []string{"help", "promptkit"}, commandkit.Streams{Out: &output, Err: io.Discard})
	if outcome.Kind != commandkit.OutcomeSuccess || !strings.Contains(output.String(), "show") || !strings.Contains(output.String(), "list") || !strings.Contains(output.String(), "requirements") {
		t.Fatalf("all-capability tree = (%#v, %q)", outcome, output.String())
	}

	app := newPromptTestApp(t, Command(Suite[struct{}, struct{}]{Selectors: []commandkit.Flag[struct{}]{{}}}))
	output.Reset()
	outcome = app.Execute(context.Background(), []string{"help"}, commandkit.Streams{Out: &output, Err: io.Discard})
	if outcome.Kind != commandkit.OutcomeSuccess || strings.Contains(output.String(), "promptkit") {
		t.Fatalf("empty suite installed a namespace: (%#v, %q)", outcome, output.String())
	}

	invalid := FromEngine[int, int](nil)
	invalid.ListPrompts, invalid.ListProfiles = nil, nil
	invalid.InspectPrompt, invalid.InspectProfile = nil, nil
	invalid.InspectRequirements = nil
	if err := newPromptTestApp(t).Register(Command(invalid)); err == nil || !strings.Contains(err.Error(), "PromptKit engine loader is nil") {
		t.Fatalf("empty invalid adapter lost its construction issue: %v", err)
	}
}

func TestRequirementsCommandCapturesContextAndVariableAssignments(t *testing.T) {
	type input struct{ campaign commandkit.Supplied[string] }
	type state struct{ call int }

	campaignFlag := commandkit.ValueFlag(commandkit.FlagMeta{Name: "campaign", Usage: "Application campaign."}, (*string)(nil), parseDefinitionString,
		func(target *input, value commandkit.Supplied[string]) { target.campaign = value })
	newInputCalls, checkInputCalls, newStateCalls, providerCalls := 0, 0, 0, 0
	var received RequirementsRequest
	var receivedInput input
	var receivedState state
	suite := Suite[input, state]{
		NewInput: func() input {
			newInputCalls++
			return input{}
		},
		NewState: func() state {
			newStateCalls++
			return state{call: newStateCalls}
		},
		Selectors: []commandkit.Flag[input]{campaignFlag},
		CheckInput: func(selection ckconfig.Selection, value input) error {
			checkInputCalls++
			if checkInputCalls == 1 {
				if !selection.Config.Set || selection.Config.Value != "" || !selection.Overlay.Set || selection.Overlay.Value != "" {
					t.Errorf("checked selection = %#v", selection)
				}
				if !value.campaign.Set || value.campaign.Value != "spring" {
					t.Errorf("checked campaign = %#v", value.campaign)
				}
			} else if selection.Config.Set || selection.Overlay.Set || value.campaign.Set {
				t.Errorf("second checked input retained prior invocation values: selection=%#v input=%#v", selection, value)
			}
			return nil
		},
		InspectRequirements: func(_ context.Context, request RequirementsRequest, value input, gotState state) (commandkit.Acquired[*promptkit.RequirementInspection], error) {
			providerCalls++
			received, receivedInput, receivedState = request, value, gotState
			return commandkit.Acquired[*promptkit.RequirementInspection]{Value: &promptkit.RequirementInspection{
				PromptID: request.Inspection.PromptID, PromptVersion: request.Inspection.PromptVersion,
				ProfileID: request.Inspection.ProfileID, Complete: true,
			}}, nil
		},
	}
	app := newPromptTestApp(t, Command(suite))
	streams := commandkit.Streams{Out: io.Discard, Err: io.Discard}
	var help bytes.Buffer
	streams.Out = &help
	helpOutcome := app.Execute(context.Background(), []string{"help", "promptkit", "requirements", "show"}, streams)
	if helpOutcome.Kind != commandkit.OutcomeSuccess || !strings.Contains(help.String(), "id") {
		t.Fatalf("requirements-only help = (%#v, %q)", helpOutcome, help.String())
	}
	var familyHelp bytes.Buffer
	familyOutcome := app.Execute(context.Background(), []string{"help", "promptkit"}, commandkit.Streams{Out: &familyHelp, Err: io.Discard})
	if familyOutcome.Kind != commandkit.OutcomeSuccess || !strings.Contains(familyHelp.String(), "requirements") || strings.Contains(familyHelp.String(), "\n  show ") || strings.Contains(familyHelp.String(), "\n  list ") {
		t.Fatalf("requirements-only family help = (%#v, %q)", familyOutcome, familyHelp.String())
	}
	for _, flag := range []string{"--config", "--overlay", "--version", "--profile", "--session-id", "--var", "--format", "--campaign"} {
		if !strings.Contains(help.String(), flag) {
			t.Errorf("requirements help omits %s: %q", flag, help.String())
		}
	}
	if strings.Contains(help.String(), "--scope") || newInputCalls != 0 || checkInputCalls != 0 || newStateCalls != 0 || providerCalls != 0 {
		t.Fatalf("help selected a scope or invoked application code: output=%q factories/checks/providers=%d/%d/%d/%d", help.String(), newInputCalls, checkInputCalls, newStateCalls, providerCalls)
	}

	var output bytes.Buffer
	args := []string{
		"promptkit", "requirements", "show", "briefing", "--campaign", "spring",
		"--config", "before.yml", "--config=", "--overlay", "base.yml", "--overlay=",
		"--version", "1", "--version", "2", "--profile", "first", "--profile", "editorial",
		"--session-id", "old-session", "--session-id", "session-42", "--format", "text", "--format", "yaml",
		"--var", "note=hello, world", "--var", "empty=", "--var", "token=a=b", "--var", "=value",
		"--var", "mode=brief", "--var", "mode=full",
	}
	outcome := app.Execute(context.Background(), args, commandkit.Streams{Out: &output, Err: io.Discard})
	if outcome.Kind != commandkit.OutcomeSuccess || outcome.Status != 0 {
		t.Fatalf("requirements invocation = %#v, output=%q", outcome, output.String())
	}
	if newInputCalls != 1 || checkInputCalls != 1 || newStateCalls != 1 || providerCalls != 1 {
		t.Fatalf("first invocation calls = input/check/state/provider %d/%d/%d/%d", newInputCalls, checkInputCalls, newStateCalls, providerCalls)
	}
	if !received.Selection.Config.Set || received.Selection.Config.Value != "" || !received.Selection.Overlay.Set || received.Selection.Overlay.Value != "" {
		t.Fatalf("configuration selection = %#v", received.Selection)
	}
	wantVariables := map[string]string{"note": "hello, world", "empty": "", "token": "a=b", "": "value", "mode": "full"}
	if received.Inspection.PromptID != "briefing" || received.Inspection.PromptVersion != "2" || received.Inspection.ProfileID != "editorial" || received.Inspection.SessionID != "session-42" || !reflect.DeepEqual(received.Inspection.Vars, wantVariables) {
		t.Fatalf("native request = %#v, want vars %#v", received.Inspection, wantVariables)
	}
	if !receivedInput.campaign.Set || receivedInput.campaign.Value != "spring" || receivedState.call != 1 {
		t.Fatalf("provider input/state = %#v/%#v", receivedInput, receivedState)
	}
	var report map[string]any
	if err := yaml.Unmarshal(output.Bytes(), &report); err != nil || report["prompt_id"] != "briefing" || report["complete"] != true {
		t.Fatalf("default requirements YAML = %#v (decode error %v), output=%q", report, err, output.String())
	}

	output.Reset()
	outcome = app.Execute(context.Background(), []string{"promptkit", "requirements", "show", "briefing"}, commandkit.Streams{Out: &output, Err: io.Discard})
	if outcome.Kind != commandkit.OutcomeSuccess || newInputCalls != 2 || checkInputCalls != 2 || newStateCalls != 2 || providerCalls != 2 {
		t.Fatalf("second invocation = %#v, calls=%d/%d/%d/%d", outcome, newInputCalls, checkInputCalls, newStateCalls, providerCalls)
	}
	if len(received.Inspection.Vars) != 0 || received.Inspection.PromptVersion != "" || received.Inspection.ProfileID != "" || received.Inspection.SessionID != "" {
		t.Fatalf("second invocation retained native values: %#v", received.Inspection)
	}
	if !strings.HasPrefix(output.String(), "prompt_id:") {
		t.Fatalf("omitted format did not default to YAML: %q", output.String())
	}
}

func TestRequirementsCommandUsageFailuresPrecedeApplicationPreparation(t *testing.T) {
	for _, test := range []struct {
		name string
		args []string
	}{
		{name: "missing operand", args: []string{"promptkit", "requirements", "show"}},
		{name: "extra operand", args: []string{"promptkit", "requirements", "show", "briefing", "extra"}},
		{name: "unsupported format", args: []string{"promptkit", "requirements", "show", "briefing", "--format", "text"}},
		{name: "malformed variable followed by valid assignment", args: []string{"promptkit", "requirements", "show", "briefing", "--var", "broken", "--var", "mode=full"}},
		{name: "no built-in scope", args: []string{"promptkit", "requirements", "show", "briefing", "--scope", "all"}},
		{name: "malformed variable on help", args: []string{"help", "promptkit", "requirements", "show", "--var", "broken"}},
	} {
		t.Run(test.name, func(t *testing.T) {
			newInputCalls, checkInputCalls, newStateCalls, providerCalls := 0, 0, 0, 0
			suite := Suite[struct{}, struct{}]{
				NewInput: func() struct{} { newInputCalls++; return struct{}{} },
				CheckInput: func(ckconfig.Selection, struct{}) error {
					checkInputCalls++
					return nil
				},
				NewState: func() struct{} { newStateCalls++; return struct{}{} },
				InspectRequirements: func(context.Context, RequirementsRequest, struct{}, struct{}) (commandkit.Acquired[*promptkit.RequirementInspection], error) {
					providerCalls++
					return commandkit.Acquired[*promptkit.RequirementInspection]{Value: &promptkit.RequirementInspection{}}, nil
				},
			}
			var output bytes.Buffer
			outcome := newPromptTestApp(t, Command(suite)).Execute(context.Background(), test.args, commandkit.Streams{Out: &output, Err: io.Discard})
			if outcome.Kind != commandkit.OutcomeUsage || outcome.Status != 2 || newInputCalls != 0 || checkInputCalls != 0 || newStateCalls != 0 || providerCalls != 0 {
				t.Fatalf("usage failure = %#v, factories/checks/providers=%d/%d/%d/%d output=%q", outcome, newInputCalls, checkInputCalls, newStateCalls, providerCalls, output.String())
			}
		})
	}
}

func TestCatalogCommandTreesAreIndependentAndOmitShow(t *testing.T) {
	prompts := Command(Suite[struct{}, struct{}]{
		ListPrompts: func(context.Context, ckconfig.Selection, struct{}, struct{}) (commandkit.Acquired[[]promptkit.PromptIdentity], error) {
			return commandkit.Acquired[[]promptkit.PromptIdentity]{}, nil
		},
	})
	profiles := Command(Suite[struct{}, struct{}]{
		ListProfiles: func(context.Context, ckconfig.Selection, struct{}, struct{}) (commandkit.Acquired[[]string], error) {
			return commandkit.Acquired[[]string]{}, nil
		},
	})
	for _, test := range []struct {
		name string
		cmd  commandkit.Command
		want string
		omit string
	}{
		{name: "prompts", cmd: prompts, want: "prompts", omit: "profiles"},
		{name: "profiles", cmd: profiles, want: "profiles", omit: "prompts"},
	} {
		t.Run(test.name, func(t *testing.T) {
			app := newPromptTestApp(t, test.cmd)
			var output bytes.Buffer
			outcome := app.Execute(context.Background(), []string{"help", "promptkit", "list"}, commandkit.Streams{Out: &output, Err: io.Discard})
			if outcome.Kind != commandkit.OutcomeSuccess || !strings.Contains(output.String(), "list") || !strings.Contains(output.String(), test.want) || strings.Contains(output.String(), test.omit) || strings.Contains(output.String(), "show") {
				t.Fatalf("catalog-only help = (%#v, %q)", outcome, output.String())
			}
		})
	}

	mixed := Command(Suite[struct{}, struct{}]{
		InspectPrompt: func(context.Context, PromptRequest, struct{}, struct{}) (commandkit.Acquired[*promptkit.PromptInspection], error) {
			return commandkit.Acquired[*promptkit.PromptInspection]{}, nil
		},
		ListPrompts: func(context.Context, ckconfig.Selection, struct{}, struct{}) (commandkit.Acquired[[]promptkit.PromptIdentity], error) {
			return commandkit.Acquired[[]promptkit.PromptIdentity]{}, nil
		},
	})
	output := new(bytes.Buffer)
	outcome := newPromptTestApp(t, mixed).Execute(context.Background(), []string{"help", "promptkit"}, commandkit.Streams{Out: output, Err: io.Discard})
	if outcome.Kind != commandkit.OutcomeSuccess || !strings.Contains(output.String(), "show") || !strings.Contains(output.String(), "list") {
		t.Fatalf("mixed catalog/show help = (%#v, %q)", outcome, output.String())
	}
}

func TestCatalogListUsesPreparedInputAndPreflightsFormat(t *testing.T) {
	type input struct{ campaign commandkit.Supplied[string] }
	type state struct{ token int }
	flag := commandkit.ValueFlag(commandkit.FlagMeta{Name: "campaign"}, (*string)(nil),
		func(value string) (string, error) { return value, nil },
		func(target *input, value commandkit.Supplied[string]) { target.campaign = value })
	newInputCalls, newStateCalls, providerCalls := 0, 0, 0
	var received input
	var receivedSelection ckconfig.Selection
	var receivedState state
	suite := Suite[input, state]{
		NewInput:  func() input { newInputCalls++; return input{} },
		NewState:  func() state { newStateCalls++; return state{token: newStateCalls} },
		Selectors: []commandkit.Flag[input]{flag},
		CheckInput: func(selection ckconfig.Selection, value input) error {
			if !value.campaign.Set || value.campaign.Value != "spring" {
				t.Errorf("checked campaign = %#v", value.campaign)
			}
			if !selection.Config.Set || selection.Config.Value != "" || !selection.Overlay.Set || selection.Overlay.Value != "base.yml" {
				t.Errorf("checked selection = %#v", selection)
			}
			return nil
		},
		ListPrompts: func(_ context.Context, selection ckconfig.Selection, value input, gotState state) (commandkit.Acquired[[]promptkit.PromptIdentity], error) {
			providerCalls++
			received, receivedSelection, receivedState = value, selection, gotState
			return commandkit.Acquired[[]promptkit.PromptIdentity]{Value: []promptkit.PromptIdentity{{ID: "briefing", Version: "1"}}}, nil
		},
	}
	app := newPromptTestApp(t, Command(suite))
	var output bytes.Buffer
	invalid := app.Execute(context.Background(), []string{"promptkit", "list", "prompts", "--format", "text"}, commandkit.Streams{Out: &output, Err: io.Discard})
	if invalid.Kind != commandkit.OutcomeUsage || newInputCalls != 0 || newStateCalls != 0 || providerCalls != 0 || output.Len() != 0 {
		t.Fatalf("invalid format preflight = %#v, factories/providers=%d/%d/%d output=%q", invalid, newInputCalls, newStateCalls, providerCalls, output.String())
	}

	outcome := app.Execute(context.Background(), []string{"promptkit", "list", "prompts", "--config", "", "--overlay", "base.yml", "--campaign", "spring"}, commandkit.Streams{Out: &output, Err: io.Discard})
	if outcome.Kind != commandkit.OutcomeSuccess || newInputCalls != 1 || newStateCalls != 1 || providerCalls != 1 {
		t.Fatalf("catalog invocation = %#v, factories/providers=%d/%d/%d output=%q", outcome, newInputCalls, newStateCalls, providerCalls, output.String())
	}
	if !received.campaign.Set || received.campaign.Value != "spring" || !receivedSelection.Config.Set || receivedSelection.Config.Value != "" || !receivedSelection.Overlay.Set || receivedSelection.Overlay.Value != "base.yml" || receivedState.token != 1 {
		t.Fatalf("provider values = input %#v selection %#v state %#v", received, receivedSelection, receivedState)
	}
}

func TestCatalogLifecycleCapturesSelectorsAndRefreshesInvocationValues(t *testing.T) {
	type input struct {
		campaign commandkit.Supplied[string]
		shadow   commandkit.Supplied[string]
		enabled  commandkit.Supplied[bool]
		limit    commandkit.Supplied[int]
		labels   commandkit.Supplied[[]string]
	}
	type state struct{ run int }
	conversions, newInputs, newStates, checks, providers := 0, 0, 0, 0, 0
	reject := false
	flag := commandkit.ValueFlag(commandkit.FlagMeta{Name: "campaign"}, (*string)(nil), func(value string) (string, error) {
		conversions++
		return value, nil
	}, func(target *input, value commandkit.Supplied[string]) { target.campaign = value })
	lookalike := commandkit.ValueFlag(commandkit.FlagMeta{Name: "campaign"}, (*string)(nil),
		func(value string) (string, error) { return value, nil },
		func(target *input, value commandkit.Supplied[string]) { target.shadow = value })
	enabled := commandkit.BoolFlag(commandkit.FlagMeta{Name: "enabled"}, true, func(target *input, value commandkit.Supplied[bool]) { target.enabled = value })
	limit := commandkit.ValueFlag(commandkit.FlagMeta{Name: "limit"}, (*int)(nil), func(value string) (int, error) {
		if value != "0" {
			return 0, errors.New("test accepts only zero")
		}
		return 0, nil
	}, func(target *input, value commandkit.Supplied[int]) { target.limit = value })
	labels := commandkit.RepeatFlag(commandkit.FlagMeta{Name: "label"}, []string(nil), func(value string) (string, error) { return value, nil },
		func(target *input, value commandkit.Supplied[[]string]) { target.labels = value })
	selectors := []commandkit.Flag[input]{flag, enabled, limit, labels}
	suite := Suite[input, *state]{
		NewInput: func() input { newInputs++; return input{} },
		NewState: func() *state {
			newStates++
			if checks != newStates {
				t.Errorf("state initialized after %d checks; state count %d", checks, newStates)
			}
			return &state{run: newStates}
		},
		Selectors: selectors,
		CheckInput: func(selection ckconfig.Selection, got input) error {
			checks++
			if reject {
				return errors.New("catalog input rejected")
			}
			if checks == 1 {
				if !selection.Config.Set || selection.Config.Value != "" || !selection.Overlay.Set || selection.Overlay.Value != "" || !got.campaign.Set || got.campaign.Value != "" || got.shadow.Set || !got.enabled.Set || got.enabled.Value || !got.limit.Set || got.limit.Value != 0 || !got.labels.Set || len(got.labels.Value) != 2 || got.labels.Value[0] != "late" || got.labels.Value[1] != "early" {
					return errors.New("supplied catalog values were not preserved")
				}
			} else if selection.Config.Set || selection.Overlay.Set || got.campaign.Set || got.shadow.Set || got.enabled.Set || got.limit.Set || got.labels.Set {
				return errors.New("catalog values leaked between invocations")
			}
			return nil
		},
		ListPrompts: func(_ context.Context, selection ckconfig.Selection, got input, gotState *state) (commandkit.Acquired[[]promptkit.PromptIdentity], error) {
			providers++
			if gotState == nil || gotState.run != providers {
				t.Errorf("provider state = %#v at invocation %d", gotState, providers)
			}
			if providers == 1 && (!selection.Config.Set || selection.Config.Value != "" || !selection.Overlay.Set || selection.Overlay.Value != "" || !got.campaign.Set || !got.enabled.Set || !got.limit.Set || !got.labels.Set) {
				t.Errorf("first provider values = selection %#v input %#v", selection, got)
			}
			return commandkit.Acquired[[]promptkit.PromptIdentity]{Value: []promptkit.PromptIdentity{}}, nil
		},
	}
	declaration := Command(suite)
	if conversions+newInputs+newStates+checks+providers != 0 {
		t.Fatal("command construction invoked suite callbacks")
	}
	selectors[0] = lookalike
	app := newPromptTestApp(t, declaration)
	if conversions+newInputs+newStates+checks+providers != 0 {
		t.Fatal("installation invoked suite callbacks")
	}
	var output bytes.Buffer
	for _, args := range [][]string{{"help", "promptkit", "list", "prompts"}, {"version"}} {
		outcome := app.Execute(context.Background(), args, commandkit.Streams{Out: &output, Err: io.Discard})
		if outcome.Kind != commandkit.OutcomeSuccess {
			t.Fatalf("non-invoking command %v = %#v", args, outcome)
		}
	}
	output.Reset()
	outcome := app.Execute(context.Background(), []string{"promptkit", "list", "prompts", "--campaign", "spring", "--help"}, commandkit.Streams{Out: &output, Err: io.Discard})
	if outcome.Kind != commandkit.OutcomeSuccess || conversions != 1 || newInputs+newStates+checks+providers != 0 {
		t.Fatalf("help with supplied flag = %#v conversions=%d callbacks=%d/%d/%d/%d output=%q", outcome, conversions, newInputs, newStates, providers, checks, output.String())
	}

	output.Reset()
	outcome = app.Execute(context.Background(), []string{"promptkit", "list", "prompts", "--campaign", "", "--enabled=false", "--limit", "0", "--label", "late", "--label=early", "--config", "", "--overlay", ""}, commandkit.Streams{Out: &output, Err: io.Discard})
	if outcome.Kind != commandkit.OutcomeSuccess || conversions != 2 || newInputs != 1 || newStates != 1 || checks != 1 || providers != 1 {
		t.Fatalf("supplied catalog invocation = %#v counts convert/input/state/check/provider=%d/%d/%d/%d/%d output=%q", outcome, conversions, newInputs, newStates, checks, providers, output.String())
	}
	output.Reset()
	outcome = app.Execute(context.Background(), []string{"promptkit", "list", "prompts"}, commandkit.Streams{Out: &output, Err: io.Discard})
	if outcome.Kind != commandkit.OutcomeSuccess || newInputs != 2 || newStates != 2 || checks != 2 || providers != 2 {
		t.Fatalf("fresh catalog invocation = %#v counts input/state/check/provider=%d/%d/%d/%d", outcome, newInputs, newStates, checks, providers)
	}
	reject = true
	outcome = app.Execute(context.Background(), []string{"promptkit", "list", "prompts"}, commandkit.Streams{Out: &output, Err: io.Discard})
	if outcome.Kind != commandkit.OutcomeUsage || newInputs != 3 || newStates != 2 || checks != 3 || providers != 2 {
		t.Fatalf("rejected input reached state/provider: %#v counts input/state/check/provider=%d/%d/%d/%d", outcome, newInputs, newStates, checks, providers)
	}
}

func TestCatalogNilFactoriesSupplyZeroValues(t *testing.T) {
	app := newPromptTestApp(t, Command(Suite[*struct{}, *struct{}]{
		ListPrompts: func(_ context.Context, selection ckconfig.Selection, input, state *struct{}) (commandkit.Acquired[[]promptkit.PromptIdentity], error) {
			if input != nil || state != nil || selection.Config.Set || selection.Overlay.Set {
				t.Errorf("nil-factory values = selection %#v input %#v state %#v", selection, input, state)
			}
			return commandkit.Acquired[[]promptkit.PromptIdentity]{}, nil
		},
	}))
	outcome := app.Execute(context.Background(), []string{"promptkit", "list", "prompts"}, commandkit.Streams{Out: io.Discard, Err: io.Discard})
	if outcome.Kind != commandkit.OutcomeSuccess {
		t.Fatalf("nil-factory catalog outcome = %#v", outcome)
	}
}

func TestCatalogCommandsRenderNativeValuesAndEmptySequences(t *testing.T) {
	prompts := []promptkit.PromptIdentity{
		{ID: "later", Version: "1.10"},
		{ID: "001", Version: " 03 "},
		{ID: "a: true", Version: "yes"},
	}
	profiles := []string{"later", "001", "a: true", "later"}
	suite := Suite[struct{}, struct{}]{
		ListPrompts: func(context.Context, ckconfig.Selection, struct{}, struct{}) (commandkit.Acquired[[]promptkit.PromptIdentity], error) {
			return commandkit.Acquired[[]promptkit.PromptIdentity]{Value: prompts}, nil
		},
		ListProfiles: func(context.Context, ckconfig.Selection, struct{}, struct{}) (commandkit.Acquired[[]string], error) {
			return commandkit.Acquired[[]string]{Value: profiles}, nil
		},
	}
	app := newPromptTestApp(t, Command(suite))
	var output bytes.Buffer
	outcome := app.Execute(context.Background(), []string{"promptkit", "list", "prompts"}, commandkit.Streams{Out: &output, Err: io.Discard})
	if outcome.Kind != commandkit.OutcomeSuccess {
		t.Fatalf("default prompt YAML outcome = %#v", outcome)
	}
	var promptEntries []map[string]any
	if err := yaml.Unmarshal(output.Bytes(), &promptEntries); err != nil {
		t.Fatalf("decode prompt command output %q: %v", output.String(), err)
	}
	if len(promptEntries) != len(prompts) {
		t.Fatalf("prompt output is not the native sequence: %#v", promptEntries)
	}
	for index, entry := range promptEntries {
		id, idOK := entry["id"].(string)
		version, versionOK := entry["version"].(string)
		if len(entry) != 2 || !idOK || !versionOK || id != prompts[index].ID || version != prompts[index].Version {
			t.Errorf("prompt entry %d = %#v, want string id/version %q/%q", index, entry, prompts[index].ID, prompts[index].Version)
		}
	}

	output.Reset()
	outcome = app.Execute(context.Background(), []string{"promptkit", "list", "profiles", "--format", "yaml"}, commandkit.Streams{Out: &output, Err: io.Discard})
	if outcome.Kind != commandkit.OutcomeSuccess {
		t.Fatalf("explicit profile YAML outcome = %#v", outcome)
	}
	var profileEntries []any
	if err := yaml.Unmarshal(output.Bytes(), &profileEntries); err != nil {
		t.Fatalf("decode profile command output %q: %v", output.String(), err)
	}
	if len(profileEntries) != len(profiles) {
		t.Fatalf("profile output is not the native sequence: %#v", profileEntries)
	}
	for index, entry := range profileEntries {
		value, ok := entry.(string)
		if !ok || value != profiles[index] {
			t.Errorf("profile entry %d = %#v, want string %q", index, entry, profiles[index])
		}
	}

	promptEmptyCalls, profileEmptyCalls := 0, 0
	emptyApp := newPromptTestApp(t, Command(Suite[struct{}, struct{}]{
		ListPrompts: func(context.Context, ckconfig.Selection, struct{}, struct{}) (commandkit.Acquired[[]promptkit.PromptIdentity], error) {
			promptEmptyCalls++
			if promptEmptyCalls%2 == 0 {
				return commandkit.Acquired[[]promptkit.PromptIdentity]{Value: []promptkit.PromptIdentity{}}, nil
			}
			return commandkit.Acquired[[]promptkit.PromptIdentity]{Value: nil}, nil
		},
		ListProfiles: func(context.Context, ckconfig.Selection, struct{}, struct{}) (commandkit.Acquired[[]string], error) {
			profileEmptyCalls++
			if profileEmptyCalls%2 == 0 {
				return commandkit.Acquired[[]string]{Value: []string{}}, nil
			}
			return commandkit.Acquired[[]string]{Value: nil}, nil
		},
	}))
	for _, resource := range []string{"prompts", "profiles"} {
		for _, inventory := range []string{"nil", "allocated"} {
			output.Reset()
			outcome := emptyApp.Execute(context.Background(), []string{"promptkit", "list", resource}, commandkit.Streams{Out: &output, Err: io.Discard})
			if outcome.Kind != commandkit.OutcomeSuccess || strings.TrimSpace(output.String()) != "[]" {
				t.Errorf("%s %s catalog = %#v, %q", inventory, resource, outcome, output.String())
			}
		}
	}
}

func TestCatalogRejectsOperandsAndUnavailableSelectors(t *testing.T) {
	calls := 0
	app := newPromptTestApp(t, Command(Suite[struct{}, struct{}]{ListPrompts: func(context.Context, ckconfig.Selection, struct{}, struct{}) (commandkit.Acquired[[]promptkit.PromptIdentity], error) {
		calls++
		return commandkit.Acquired[[]promptkit.PromptIdentity]{}, nil
	}}))
	for _, args := range [][]string{
		{"promptkit", "list", "prompts", "unexpected"},
		{"promptkit", "list", "prompts", "--version", "2"},
		{"promptkit", "list", "prompts", "--scope", "app"},
	} {
		outcome := app.Execute(context.Background(), args, commandkit.Streams{Out: io.Discard, Err: io.Discard})
		if outcome.Kind != commandkit.OutcomeUsage || calls != 0 {
			t.Errorf("unsupported catalog arguments %v = %#v after %d provider calls", args, outcome, calls)
		}
	}
}

func TestCatalogFailuresRetainDiagnosticsAndDeliveryState(t *testing.T) {
	diagnostic := commandkit.Diagnostic{Severity: commandkit.SeverityWarning, Write: func(writer io.Writer) error {
		_, err := io.WriteString(writer, "catalog warning\n")
		return err
	}}
	hasCatalogWarning := func(diagnostics []commandkit.Diagnostic) bool {
		for _, got := range diagnostics {
			if got.Severity != diagnostic.Severity || got.Write == nil {
				continue
			}
			var output bytes.Buffer
			if got.Write(&output) == nil && output.String() == "catalog warning\n" {
				return true
			}
		}
		return false
	}
	providerErr := errors.New("catalog provider failed")
	app := newPromptTestApp(t, Command(Suite[struct{}, struct{}]{ListPrompts: func(context.Context, ckconfig.Selection, struct{}, struct{}) (commandkit.Acquired[[]promptkit.PromptIdentity], error) {
		return commandkit.Acquired[[]promptkit.PromptIdentity]{Diagnostics: []commandkit.Diagnostic{diagnostic}}, providerErr
	}}))
	outcome := app.Execute(context.Background(), []string{"promptkit", "list", "prompts"}, commandkit.Streams{Out: io.Discard, Err: io.Discard})
	if outcome.Kind != commandkit.OutcomeOperational || !errors.Is(outcome.Cause, providerErr) || !hasCatalogWarning(outcome.Diagnostics) {
		t.Fatalf("provider failure outcome = %#v", outcome)
	}

	ctx, cancel := context.WithCancel(context.Background())
	canceled := newPromptTestApp(t, Command(Suite[struct{}, struct{}]{ListPrompts: func(context.Context, ckconfig.Selection, struct{}, struct{}) (commandkit.Acquired[[]promptkit.PromptIdentity], error) {
		cancel()
		return commandkit.Acquired[[]promptkit.PromptIdentity]{Value: []promptkit.PromptIdentity{{ID: "briefing", Version: "1"}}, Diagnostics: []commandkit.Diagnostic{diagnostic}}, nil
	}}))
	var output bytes.Buffer
	outcome = canceled.Execute(ctx, []string{"promptkit", "list", "prompts"}, commandkit.Streams{Out: &output, Err: io.Discard})
	if outcome.Kind != commandkit.OutcomeOperational || !errors.Is(outcome.Cause, context.Canceled) || !hasCatalogWarning(outcome.Diagnostics) || output.Len() != 0 {
		t.Fatalf("post-provider cancellation outcome = %#v output=%q", outcome, output.String())
	}

	writeErr := errors.New("catalog report writer failed")
	for _, test := range []struct {
		name   string
		writer io.Writer
		want   error
	}{
		{name: "writer error", writer: partialReportWriter{err: writeErr}, want: writeErr},
		{name: "short write", writer: partialReportWriter{}, want: io.ErrShortWrite},
	} {
		t.Run(test.name, func(t *testing.T) {
			writerApp := newPromptTestApp(t, Command(Suite[struct{}, struct{}]{ListPrompts: func(context.Context, ckconfig.Selection, struct{}, struct{}) (commandkit.Acquired[[]promptkit.PromptIdentity], error) {
				return commandkit.Acquired[[]promptkit.PromptIdentity]{Value: []promptkit.PromptIdentity{{ID: "briefing", Version: "1"}}, Diagnostics: []commandkit.Diagnostic{diagnostic}}, nil
			}}))
			outcome := writerApp.Execute(context.Background(), []string{"promptkit", "list", "prompts"}, commandkit.Streams{Out: test.writer, Err: io.Discard})
			if outcome.Kind != commandkit.OutcomeOperational || !errors.Is(outcome.DeliveryError, test.want) || !errors.Is(outcome.Cause, test.want) || !outcome.ReportIncomplete || !hasCatalogWarning(outcome.Diagnostics) {
				t.Fatalf("catalog delivery outcome = %#v", outcome)
			}
		})
	}
}

func TestCommandUsesInstalledNamespaceCollisionChecks(t *testing.T) {
	command := Command(Suite[struct{}, struct{}]{InspectPrompt: func(context.Context, PromptRequest, struct{}, struct{}) (commandkit.Acquired[*promptkit.PromptInspection], error) {
		return commandkit.Acquired[*promptkit.PromptInspection]{}, nil
	}})
	other := commandkit.Group("promptkit", "Another command tree.", commandkit.NewCommand(commandkit.CommandSpec[struct{}]{Name: "child", Summary: "A child."}))
	first, err := commandkit.New(commandkit.Identity{Name: "example"}, other)
	if err != nil {
		t.Fatal(err)
	}
	if err := first.Register(command); err == nil {
		t.Fatal("PromptKit tree installed over an existing namespace")
	}
	second, err := commandkit.New(commandkit.Identity{Name: "example"}, command)
	if err != nil {
		t.Fatal(err)
	}
	if err := second.Register(other); err == nil {
		t.Fatal("later command tree installed over the PromptKit namespace")
	}
}

func TestCommandValidatesOnlyGeneratedCapturedBindings(t *testing.T) {
	unused := Command(Suite[struct{}, struct{}]{Selectors: []commandkit.Flag[struct{}]{{}}})
	if err := newPromptTestApp(t).Register(unused); err != nil {
		t.Fatalf("unused malformed selector affected empty suite: %v", err)
	}
	generated := Command(Suite[struct{}, struct{}]{Selectors: []commandkit.Flag[struct{}]{{}}, InspectProfile: func(context.Context, ProfileRequest, struct{}, struct{}) (commandkit.Acquired[*promptkit.ProfileInspection], error) {
		return commandkit.Acquired[*promptkit.ProfileInspection]{}, nil
	}})
	if err := newPromptTestApp(t).Register(generated); err == nil {
		t.Fatal("generated command accepted an invalid captured selector")
	}
}

func TestDefinitionInputAndStateLifetimesFollowChecks(t *testing.T) {
	type inspectInput struct{ Campaign commandkit.Supplied[string] }
	type runState struct{}
	conversions := 0
	flag := commandkit.ValueFlag[*inspectInput, string](commandkit.FlagMeta{Name: "campaign", Required: true}, (*string)(nil), func(value string) (string, error) {
		conversions++
		return value, nil
	}, func(input **inspectInput, value commandkit.Supplied[string]) { (*input).Campaign = value })
	newInputs, newStates, checks, callbacks := 0, 0, 0, 0
	rejectInput := false
	var checked *inspectInput
	var wantContext context.Context
	suite := Suite[*inspectInput, *runState]{
		NewInput: func() *inspectInput { newInputs++; return &inspectInput{} },
		NewState: func() *runState {
			newStates++
			if checks != 1 {
				t.Errorf("state initialized after %d input checks", checks)
			}
			return &runState{}
		},
		Selectors: []commandkit.Flag[*inspectInput]{flag},
		CheckInput: func(selection ckconfig.Selection, input *inspectInput) error {
			checks++
			checked = input
			if rejectInput {
				return errors.New("rejected definition input")
			}
			if !selection.Config.Set || selection.Config.Value != "base.yml" || !selection.Overlay.Set || selection.Overlay.Value != "local.yml" || !input.Campaign.Set || input.Campaign.Value != "spring" {
				return errors.New("definition input was incomplete")
			}
			return nil
		},
		InspectPrompt: func(ctx context.Context, request PromptRequest, input *inspectInput, state *runState) (commandkit.Acquired[*promptkit.PromptInspection], error) {
			callbacks++
			if ctx != wantContext || input != checked || request.ID != "briefing" || !request.Version.Set || request.Version.Value != "2" || state == nil {
				t.Errorf("prompt callback arguments = ctx=%v request=%#v input=%p state=%p", ctx, request, input, state)
			}
			return commandkit.Acquired[*promptkit.PromptInspection]{Value: &promptkit.PromptInspection{PromptID: request.ID, PromptVersion: request.Version.Value}}, nil
		},
	}
	app := newPromptTestApp(t, Command(suite))
	wantContext = context.WithValue(context.Background(), struct{}{}, "context")
	var output bytes.Buffer
	outcome := app.Execute(wantContext, []string{"promptkit", "show", "prompt", "briefing", "--campaign", "spring", "--config", "base.yml", "--overlay", "local.yml", "--version", "2"}, commandkit.Streams{Out: &output, Err: io.Discard})
	if outcome.Kind != commandkit.OutcomeSuccess || newInputs != 1 || newStates != 1 || checks != 1 || callbacks != 1 || conversions != 1 {
		t.Fatalf("execution outcome=%#v counts conversion/input/state/check/callback=%d/%d/%d/%d/%d report=%q", outcome, conversions, newInputs, newStates, checks, callbacks, output.String())
	}
	rejectInput = true
	output.Reset()
	outcome = app.Execute(wantContext, []string{"promptkit", "show", "prompt", "briefing", "--campaign", "spring", "--config", "base.yml", "--overlay", "local.yml", "--version", "2"}, commandkit.Streams{Out: &output, Err: io.Discard})
	if outcome.Kind != commandkit.OutcomeUsage || newInputs != 2 || newStates != 1 || checks != 2 || callbacks != 1 || conversions != 2 {
		t.Fatalf("rejected input reached state/callback: outcome=%#v counts=%d/%d/%d/%d/%d", outcome, conversions, newInputs, newStates, checks, callbacks)
	}
}

func TestDefinitionReportsRetainNativeFieldsAndSafeCredentialReferences(t *testing.T) {
	t.Setenv("PROMPTKIT_ADAPTER_TEST_KEY", "credential-value-must-not-appear")
	engine := adapterEngine(t)
	loadCalls := 0
	suite := FromEngine(func(context.Context, ckconfig.Selection, struct{}, struct{}) (*promptkit.Engine, error) {
		loadCalls++
		return engine, nil
	})
	app := newPromptTestApp(t, Command(suite))
	var output bytes.Buffer
	outcome := app.Execute(context.Background(), []string{"promptkit", "show", "prompt", "briefing", "--version", "1", "--format", "yaml"}, commandkit.Streams{Out: &output, Err: io.Discard})
	if outcome.Kind != commandkit.OutcomeSuccess || loadCalls != 1 {
		t.Fatalf("prompt report outcome=%#v load calls=%d report=%s", outcome, loadCalls, output.String())
	}
	var prompt map[string]any
	if err := yaml.Unmarshal(output.Bytes(), &prompt); err != nil {
		t.Fatal(err)
	}
	inputs := prompt["inputs"].([]any)
	if len(inputs) != 2 || inputs[0].(map[string]any)["name"] != "topic" || inputs[1].(map[string]any)["name"] != "audience" || prompt["prompt_hash"] == "" {
		t.Fatalf("prompt fields/order = %#v", prompt)
	}
	contract := prompt["output_contract"].(map[string]any)
	if contract["repair_attempts"] != 0 {
		t.Fatalf("zero-valued contract field was lost: %#v", contract)
	}

	output.Reset()
	outcome = app.Execute(context.Background(), []string{"promptkit", "show", "prompt", "briefing"}, commandkit.Streams{Out: &output, Err: io.Discard})
	if outcome.Kind != commandkit.OutcomeSuccess || loadCalls != 2 || !strings.Contains(output.String(), "Prompt version: \"1\"") || !strings.Contains(output.String(), `- name: "topic"`) {
		t.Fatalf("default text prompt report = (%#v, calls=%d, %s)", outcome, loadCalls, output.String())
	}

	output.Reset()
	outcome = app.Execute(context.Background(), []string{"promptkit", "show", "profile", "default", "--format", "yaml"}, commandkit.Streams{Out: &output, Err: io.Discard})
	if outcome.Kind != commandkit.OutcomeSuccess || loadCalls != 3 {
		t.Fatalf("profile report outcome=%#v calls=%d report=%s", outcome, loadCalls, output.String())
	}
	var profile map[string]any
	if err := yaml.Unmarshal(output.Bytes(), &profile); err != nil {
		t.Fatal(err)
	}
	params := profile["effective_model_params"].(map[string]any)
	if params["api_key_env"] != "PROMPTKIT_ADAPTER_TEST_KEY" || params["temperature"] != 0 || params["max_tokens"] != 0 || strings.Contains(output.String(), "credential-value-must-not-appear") {
		t.Fatalf("credential or zero model fields = %#v / %s", params, output.String())
	}
	extra := params["extra_params"].(map[string]any)
	nested := extra["nested"].(map[string]any)
	sequence := extra["sequence"].([]any)
	if extra["token"] != "caller-owned-value" || nested["null_value"] != nil || nested["visible"] != true || len(sequence) != 3 || sequence[1] != nil || sequence[2] != 3 {
		t.Fatalf("nested ExtraParams changed: %#v", extra)
	}

	output.Reset()
	outcome = app.Execute(context.Background(), []string{"promptkit", "show", "profile", "default"}, commandkit.Streams{Out: &output, Err: io.Discard})
	if outcome.Kind != commandkit.OutcomeSuccess || loadCalls != 4 || !strings.Contains(output.String(), "API key required: false") || !strings.Contains(output.String(), `api_key_env: "PROMPTKIT_ADAPTER_TEST_KEY"`) {
		t.Fatalf("default text profile report = (%#v, calls=%d, %s)", outcome, loadCalls, output.String())
	}

	output.Reset()
	outcome = app.Execute(context.Background(), []string{"promptkit", "show", "profile", "requires-key", "--format", "yaml"}, commandkit.Streams{Out: &output, Err: io.Discard})
	if outcome.Kind != commandkit.OutcomeSuccess || !strings.Contains(output.String(), "api_key_required: true") {
		t.Fatalf("credential requirement report = (%#v, %s)", outcome, output.String())
	}

	output.Reset()
	outcome = app.Execute(context.Background(), []string{"promptkit", "show", "prompt", "empty", "--format", "yaml"}, commandkit.Streams{Out: &output, Err: io.Discard})
	if outcome.Kind != commandkit.OutcomeSuccess || !strings.Contains(output.String(), "inputs: []") {
		t.Fatalf("empty prompt input list = (%#v, %s)", outcome, output.String())
	}
}

func TestNativeLookupErrorsAndBlankIDsReachCallbacks(t *testing.T) {
	nativeErr := errors.New("native lookup failure")
	calls := 0
	diagnostic := commandkit.MessageDiagnostic(commandkit.SeverityWarning, "lookup context")
	app := newPromptTestApp(t, Command(Suite[struct{}, struct{}]{InspectPrompt: func(_ context.Context, request PromptRequest, _ struct{}, _ struct{}) (commandkit.Acquired[*promptkit.PromptInspection], error) {
		calls++
		if request.ID != "" {
			t.Errorf("blank ID was rewritten to %q", request.ID)
		}
		return commandkit.Acquired[*promptkit.PromptInspection]{Diagnostics: []commandkit.Diagnostic{diagnostic}}, nativeErr
	}}))
	var output, diagnosticOutput bytes.Buffer
	outcome := app.Execute(context.Background(), []string{"promptkit", "show", "prompt"}, commandkit.Streams{Out: &output, Err: &diagnosticOutput})
	if outcome.Kind != commandkit.OutcomeUsage || calls != 0 || output.Len() != 0 {
		t.Fatalf("missing ID was not a usage failure: (%#v, calls=%d, out=%q)", outcome, calls, output.String())
	}
	output.Reset()
	diagnosticOutput.Reset()
	outcome = app.Execute(context.Background(), []string{"promptkit", "show", "prompt", ""}, commandkit.Streams{Out: &output, Err: &diagnosticOutput})
	if outcome.Kind != commandkit.OutcomeOperational || !errors.Is(outcome.Cause, nativeErr) || calls != 1 || output.Len() != 0 || !strings.Contains(diagnosticOutput.String(), "lookup context") {
		t.Fatalf("native lookup failure = (%#v, calls=%d, out=%q, err=%q)", outcome, calls, output.String(), diagnosticOutput.String())
	}
}

func TestCancelledInspectionDoesNotRender(t *testing.T) {
	ctx, cancel := context.WithCancel(context.Background())
	called := 0
	app := newPromptTestApp(t, Command(Suite[struct{}, struct{}]{InspectProfile: func(context.Context, ProfileRequest, struct{}, struct{}) (commandkit.Acquired[*promptkit.ProfileInspection], error) {
		called++
		cancel()
		return commandkit.Acquired[*promptkit.ProfileInspection]{Value: &promptkit.ProfileInspection{ProfileID: "default"}}, nil
	}}))
	var output bytes.Buffer
	outcome := app.Execute(ctx, []string{"promptkit", "show", "profile", "default"}, commandkit.Streams{Out: &output, Err: io.Discard})
	if !errors.Is(outcome.Cause, context.Canceled) || outcome.Kind != commandkit.OutcomeOperational || called != 1 || output.Len() != 0 {
		t.Fatalf("cancelled inspection = (%#v, called=%d, output=%q)", outcome, called, output.String())
	}
}

func TestDefinitionFormatPreflightAndReportDeliveryFailure(t *testing.T) {
	calls := 0
	app := newPromptTestApp(t, Command(Suite[struct{}, struct{}]{InspectProfile: func(context.Context, ProfileRequest, struct{}, struct{}) (commandkit.Acquired[*promptkit.ProfileInspection], error) {
		calls++
		return commandkit.Acquired[*promptkit.ProfileInspection]{Value: &promptkit.ProfileInspection{ProfileID: "default"}}, nil
	}}))
	var output bytes.Buffer
	outcome := app.Execute(context.Background(), []string{"promptkit", "show", "profile", "default", "--format", "json"}, commandkit.Streams{Out: &output, Err: io.Discard})
	if outcome.Kind != commandkit.OutcomeUsage || calls != 0 || output.Len() != 0 {
		t.Fatalf("bad format was not rejected before callback: outcome=%#v calls=%d output=%q", outcome, calls, output.String())
	}

	writeErr := errors.New("report writer failed")
	outcome = app.Execute(context.Background(), []string{"promptkit", "show", "profile", "default"}, commandkit.Streams{Out: partialReportWriter{err: writeErr}, Err: io.Discard})
	if outcome.Kind != commandkit.OutcomeOperational || !errors.Is(outcome.Cause, writeErr) || outcome.DeliveryError != writeErr || !outcome.ReportIncomplete || calls != 1 {
		t.Fatalf("report delivery outcome = %#v calls=%d", outcome, calls)
	}
}

type partialReportWriter struct{ err error }

func (writer partialReportWriter) Write(content []byte) (int, error) {
	if len(content) == 0 {
		return 0, writer.err
	}
	return 1, writer.err
}

var _ io.Writer = partialReportWriter{}

func TestProfileTextUsesCredentialNamesAndExplicitEmptyExtraParams(t *testing.T) {
	report := profileReportFromInspection(&promptkit.ProfileInspection{ProfileID: "default", EffectiveModelParams: promptkit.ExecutionTarget{APIKeyEnv: "APP_KEY", ExtraParams: nil}})
	text, err := formatProfileText(report)
	if err != nil || !strings.Contains(text, "api_key_env: \"APP_KEY\"") || !strings.Contains(text, "extra_params:\n    {}\n") || !strings.Contains(text, "API key required: false") {
		t.Fatalf("profile text = (%q, %v)", text, err)
	}
	if strings.Contains(text, "APP_KEY_VALUE") {
		t.Fatalf("report contains a credential value: %q", text)
	}
}

func TestPromptCatalogYAMLPreservesSchemaStringsAndOrder(t *testing.T) {
	want := []promptkit.PromptIdentity{
		{ID: "  briefing ", Version: " 03 "},
		{ID: "001", Version: "1.10"},
		{ID: "  briefing ", Version: " 03 "},
	}
	output, err := encodePromptCatalog(want)
	if err != nil {
		t.Fatal(err)
	}
	var decoded []map[string]any
	if err := yaml.Unmarshal(output, &decoded); err != nil {
		t.Fatalf("decode prompt catalog %q: %v", output, err)
	}
	if len(decoded) != len(want) {
		t.Fatalf("catalog entry count = %d, want %d: %q", len(decoded), len(want), output)
	}
	for index, entry := range decoded {
		if len(entry) != 2 {
			t.Errorf("entry %d fields = %#v, want only id and version", index, entry)
		}
		id, idOK := entry["id"].(string)
		version, versionOK := entry["version"].(string)
		if !idOK || !versionOK || id != want[index].ID || version != want[index].Version {
			t.Errorf("entry %d = %#v, want id/version %q/%q as strings", index, entry, want[index].ID, want[index].Version)
		}
	}
}

func TestCatalogYAMLEncodersRenderNilAndEmptyInventoriesAsSequences(t *testing.T) {
	for _, test := range []struct {
		name string
		data func() ([]byte, error)
	}{
		{name: "nil prompts", data: func() ([]byte, error) { return encodePromptCatalog(nil) }},
		{name: "empty prompts", data: func() ([]byte, error) { return encodePromptCatalog(make([]promptkit.PromptIdentity, 0)) }},
		{name: "nil profiles", data: func() ([]byte, error) { return encodeProfileCatalog(nil) }},
		{name: "empty profiles", data: func() ([]byte, error) { return encodeProfileCatalog(make([]string, 0)) }},
	} {
		t.Run(test.name, func(t *testing.T) {
			output, err := test.data()
			if err != nil {
				t.Fatal(err)
			}
			if strings.TrimSpace(string(output)) != "[]" {
				t.Fatalf("empty catalog YAML = %q, want empty sequence", output)
			}
		})
	}
}

func TestProfileCatalogYAMLPreservesStringValuesAndOrder(t *testing.T) {
	want := []string{"  default ", "001", "same", "same"}
	output, err := encodeProfileCatalog(want)
	if err != nil {
		t.Fatal(err)
	}
	var decoded []any
	if err := yaml.Unmarshal(output, &decoded); err != nil {
		t.Fatalf("decode profile catalog %q: %v", output, err)
	}
	if len(decoded) != len(want) {
		t.Fatalf("catalog entry count = %d, want %d: %q", len(decoded), len(want), output)
	}
	for index, item := range decoded {
		value, ok := item.(string)
		if !ok || value != want[index] {
			t.Errorf("profile %d = %#v, want string %q", index, item, want[index])
		}
	}
}

func TestRequirementsReportRendersEmptyInventoriesAndFalseValues(t *testing.T) {
	output, err := encodePromptYAMLBytes(requirementsReportFromInspection(&promptkit.RequirementInspection{}))
	if err != nil {
		t.Fatal(err)
	}
	var report map[string]any
	if err := yaml.Unmarshal(output, &report); err != nil {
		t.Fatalf("decode requirements report %q: %v", output, err)
	}
	for _, key := range []string{"prompt_id", "prompt_version", "profile_id", "complete", "inputs", "variables", "issues"} {
		if _, ok := report[key]; !ok {
			t.Errorf("requirements report is missing %q: %q", key, output)
		}
	}
	if report["complete"] != false {
		t.Errorf("complete = %#v, want false", report["complete"])
	}
	for _, key := range []string{"inputs", "variables", "issues"} {
		items, ok := report[key].([]any)
		if !ok || len(items) != 0 {
			t.Errorf("%s = %#v, want an empty sequence", key, report[key])
		}
	}
	for _, key := range []string{"prompt_id", "prompt_version", "profile_id"} {
		if report[key] != "" {
			t.Errorf("%s = %#v, want an explicitly present empty string", key, report[key])
		}
	}
}

func TestRequirementsReportPreservesNativeFieldsAndMetadata(t *testing.T) {
	empty := ""
	contentType := "true"
	inspection := &promptkit.RequirementInspection{
		PromptID:      "true",
		PromptVersion: "001",
		ProfileID:     "null",
		Complete:      true,
		Inputs: []promptkit.InputRequirement{
			{Name: "true", Kind: promptkit.RequirementKind("123"), Declared: false, Description: &empty},
			{Name: "001", Kind: promptkit.RequirementKind("future_kind"), Declared: true, ContentType: &contentType, Explanation: "false"},
		},
		Variables: []promptkit.VariableRequirement{
			{Name: "false", Kind: promptkit.RequirementKind("on"), Supplied: false},
			{Name: "001", Kind: promptkit.RequirementKind("future_kind"), Supplied: true, Explanation: "true"},
		},
		Issues: []promptkit.RequirementIssue{{
			Code:         promptkit.RequirementIssueCode("123"),
			InputName:    "",
			VariableName: "false",
			Description:  "",
		}},
	}

	for _, complete := range []bool{true, false} {
		t.Run(map[bool]string{true: "complete", false: "partial"}[complete], func(t *testing.T) {
			inspection.Complete = complete
			output, err := encodePromptYAMLBytes(requirementsReportFromInspection(inspection))
			if err != nil {
				t.Fatal(err)
			}
			var report map[string]any
			if err := yaml.Unmarshal(output, &report); err != nil {
				t.Fatalf("decode requirements report %q: %v", output, err)
			}
			if report["complete"] != complete || report["prompt_id"] != "true" || report["prompt_version"] != "001" || report["profile_id"] != "null" {
				t.Fatalf("selected context or completeness = %#v", report)
			}

			inputs, ok := report["inputs"].([]any)
			if !ok || len(inputs) != 2 {
				t.Fatalf("inputs = %#v", report["inputs"])
			}
			firstInput, ok := inputs[0].(map[string]any)
			if !ok || len(firstInput) != 6 || firstInput["name"] != "true" || firstInput["kind"] != "123" || firstInput["declared"] != false || firstInput["content_type"] != nil || firstInput["description"] != "" || firstInput["explanation"] != "" {
				t.Fatalf("first input = %#v", inputs[0])
			}
			secondInput, ok := inputs[1].(map[string]any)
			if !ok || len(secondInput) != 6 || secondInput["name"] != "001" || secondInput["kind"] != "future_kind" || secondInput["declared"] != true || secondInput["content_type"] != "true" || secondInput["description"] != nil || secondInput["explanation"] != "false" {
				t.Fatalf("second input = %#v", inputs[1])
			}

			variables, ok := report["variables"].([]any)
			if !ok || len(variables) != 2 {
				t.Fatalf("variables = %#v", report["variables"])
			}
			firstVariable, ok := variables[0].(map[string]any)
			if !ok || len(firstVariable) != 4 || firstVariable["name"] != "false" || firstVariable["kind"] != "on" || firstVariable["supplied"] != false || firstVariable["explanation"] != "" {
				t.Fatalf("first variable = %#v", variables[0])
			}
			secondVariable, ok := variables[1].(map[string]any)
			if !ok || len(secondVariable) != 4 || secondVariable["name"] != "001" || secondVariable["kind"] != "future_kind" || secondVariable["supplied"] != true || secondVariable["explanation"] != "true" {
				t.Fatalf("second variable = %#v", variables[1])
			}

			issues, ok := report["issues"].([]any)
			if !ok || len(issues) != 1 {
				t.Fatalf("issues = %#v", report["issues"])
			}
			issue, ok := issues[0].(map[string]any)
			if !ok || len(issue) != 4 || issue["code"] != "123" || issue["input_name"] != "" || issue["variable_name"] != "false" || issue["description"] != "" {
				t.Fatalf("issue = %#v", issues[0])
			}
		})
	}
}