package configuration

import (
	"context"
	"testing"

	"go.maximumdirect.net/configkit"
)

func TestTargetInterpretationPreservesComposedNestedValues(t *testing.T) {
	state, err := load(mapping("padded target", map[string]any{
		"backends": []any{map[string]any{
			"id": "local", "endpoint": " HTTPS://example.invalid/v1 ", "concurrency_limit": 1,
			"smoke_tests": map[string]any{
				"reachability":   map[string]any{"endpoint": " https://example.invalid/health "},
				"authentication": map[string]any{"kind": " NONE ", "endpoint": " https://example.invalid/key "},
			},
		}},
		"profiles": []any{map[string]any{"id": "partial", "backend": "local", "service_tier": " standard ", "api_key_env": " TOKEN "}},
	}), nil)
	if err != nil {
		t.Fatal(err)
	}
	backend, err := state.GetBackend("local")
	if err != nil || backend.Endpoint != "https://example.invalid/v1" || backend.QueueCapacity != 1024 ||
		backend.SmokeTests == nil || *backend.SmokeTests.Reachability.Endpoint != "https://example.invalid/health" ||
		*backend.SmokeTests.Authentication.Kind != "none" || *backend.SmokeTests.Authentication.Endpoint != "https://example.invalid/key" {
		t.Fatalf("interpreted backend = %+v, %v", backend, err)
	}
	profile, err := state.GetProfile(context.Background(), "partial")
	if err != nil || profile.ResolvedTarget.ServiceTier != "standard" || profile.ResolvedTarget.APIKeyEnv != "TOKEN" {
		t.Fatalf("interpreted profile = %+v, %v", profile, err)
	}
	composed := state.result.Config.Backends[0]
	if *composed.Endpoint != " HTTPS://example.invalid/v1 " || composed.QueueCapacity != nil ||
		*composed.SmokeTests.Reachability.Endpoint != " https://example.invalid/health " ||
		*composed.SmokeTests.Authentication.Kind != " NONE " || *composed.SmokeTests.Authentication.Endpoint != " https://example.invalid/key " ||
		*state.result.Config.Profiles[0].ServiceTier != " standard " || *state.result.Config.Profiles[0].APIKeyEnv != " TOKEN " {
		t.Fatalf("composed values were mutated: %+v", state.result.Config)
	}
	path := configkit.Keys("backends").Index(0).Key("smoke_tests").Key("authentication").Key("endpoint")
	field, found := state.result.Metadata().Lookup(path)
	if !found || len(field.Origin.Locations) == 0 || field.Origin.Operation == configkit.ChangeNormalization {
		t.Fatalf("nested field origin changed: %+v", field)
	}
}