package api

import "git.threesix.ai/jordan/slate-test-1770505673/pkg/openapi"

// NewServiceSpec builds the OpenAPI specification for the preferences-api service.
func NewServiceSpec() *openapi.OpenAPISpec {
	spec := openapi.NewOpenAPISpec("preferences-api API", "1.0.0").
		WithDescription("REST API for user preferences management").
		WithBearerSecurity("bearer", "JWT authentication token").
		WithTag("Health", "Service health endpoints").
		WithTag("Preferences", "User preference endpoints")

	// Reusable schemas
	spec.WithSchema("PreferencesMap", openapi.Object(map[string]openapi.Schema{
		"theme":                 openapi.StringEnum("light", "dark", "system").WithDescription("UI theme preference"),
		"language":              openapi.String().WithPattern("^[a-z]{2}$").WithDescription("ISO 639-1 language code"),
		"notifications_enabled": openapi.StringEnum("true", "false").WithDescription("Notification toggle"),
	}))

	spec.WithSchema("UpdatePreferencesRequest", openapi.Object(map[string]openapi.Schema{
		"theme":                 openapi.StringEnum("light", "dark", "system").WithDescription("UI theme preference"),
		"language":              openapi.String().WithPattern("^[a-z]{2}$").WithDescription("ISO 639-1 language code"),
		"notifications_enabled": openapi.StringEnum("true", "false").WithDescription("Notification toggle"),
	}))

	userIDParam := openapi.PathParamWithSchema("user_id", "User UUID", openapi.UUID())

	// Health
	spec.AddPath("/api/preferences-api/health", "get", map[string]any{
		"summary": "Health check",
		"tags":    []string{"Health"},
		"responses": map[string]any{
			"200": openapi.OpResponse("Service is healthy", openapi.Object(map[string]openapi.Schema{
				"service": openapi.String(),
				"status":  openapi.String(),
			})),
		},
	})

	// GET /preferences/{user_id}
	spec.AddPath("/api/preferences-api/preferences/{user_id}", "get", map[string]any{
		"summary":     "Get user preferences",
		"description": "Returns all preferences for a user. Returns empty object if no preferences are set.",
		"tags":        []string{"Preferences"},
		"security":    []map[string][]string{{"bearer": {}}},
		"parameters":  []any{userIDParam},
		"responses": map[string]any{
			"200": openapi.OpResponse("Success", openapi.ResponseSchema(openapi.Ref("PreferencesMap"))),
			"400": openapi.OpResponse("Invalid user ID", openapi.ErrorResponseSchema()),
			"401": openapi.OpResponse("Unauthorized", openapi.ErrorResponseSchema()),
			"403": openapi.OpResponse("Forbidden", openapi.ErrorResponseSchema()),
		},
	})

	// PUT /preferences/{user_id}
	spec.AddPath("/api/preferences-api/preferences/{user_id}", "put", map[string]any{
		"summary":     "Update user preferences",
		"description": "Creates or updates preferences for a user (partial upsert). Returns the full preference set after the update.",
		"tags":        []string{"Preferences"},
		"security":    []map[string][]string{{"bearer": {}}},
		"parameters":  []any{userIDParam},
		"requestBody": openapi.RequestBody(openapi.Ref("UpdatePreferencesRequest"), true),
		"responses": map[string]any{
			"200": openapi.OpResponse("Updated", openapi.ResponseSchema(openapi.Ref("PreferencesMap"))),
			"400": openapi.OpResponse("Bad request", openapi.ErrorResponseSchema()),
			"401": openapi.OpResponse("Unauthorized", openapi.ErrorResponseSchema()),
			"403": openapi.OpResponse("Forbidden", openapi.ErrorResponseSchema()),
		},
	})

	return spec
}