package api

import "git.threesix.ai/jordan/slack5-1770574304/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")

	// Define reusable schemas
	spec.WithSchema("NotificationPreferences", openapi.Object(map[string]openapi.Schema{
		"email":  openapi.Bool().WithDescription("Email notifications enabled"),
		"push":   openapi.Bool().WithDescription("Push notifications enabled"),
		"digest": openapi.StringEnum("none", "daily", "weekly").WithDescription("Digest frequency"),
	}, "email", "push", "digest"))

	spec.WithSchema("UserPreferences", openapi.Object(map[string]openapi.Schema{
		"user_id":       openapi.String().WithDescription("User identifier"),
		"theme":         openapi.StringEnum("light", "dark", "system").WithDescription("UI theme"),
		"language":      openapi.StringEnum("en", "fr", "es", "de", "ja").WithDescription("Language (BCP-47)"),
		"notifications": openapi.Ref("NotificationPreferences"),
		"updated_at":    openapi.DateTime().WithDescription("Last update timestamp"),
	}, "user_id", "theme", "language", "notifications"))

	spec.WithSchema("UpdatePreferencesRequest", openapi.Object(map[string]openapi.Schema{
		"theme":         openapi.StringEnum("light", "dark", "system").WithDescription("UI theme"),
		"language":      openapi.StringEnum("en", "fr", "es", "de", "ja").WithDescription("Language (BCP-47)"),
		"notifications": openapi.Ref("NotificationPreferences"),
	}, "theme", "language", "notifications"))

	// 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(),
			})),
		},
	})

	userIDParam := openapi.PathParam("user_id", "User identifier")

	// Get preferences
	spec.AddPath("/api/preferences-api/preferences/{user_id}", "get", map[string]any{
		"summary":     "Get user preferences",
		"description": "Returns preferences for the specified user. Returns defaults if none are saved. Admins may read any user's preferences.",
		"tags":        []string{"Preferences"},
		"security":    []map[string][]string{{"bearer": {}}},
		"parameters":  []any{userIDParam},
		"responses": map[string]any{
			"200": openapi.OpResponse("Success", openapi.ResponseSchema(openapi.Ref("UserPreferences"))),
			"401": openapi.OpResponse("Unauthorized", openapi.ErrorResponseSchema()),
			"403": openapi.OpResponse("Forbidden", openapi.ErrorResponseSchema()),
		},
	})

	// Update preferences
	spec.AddPath("/api/preferences-api/preferences/{user_id}", "put", map[string]any{
		"summary":     "Update user preferences",
		"description": "Creates or fully replaces preferences for the specified user (upsert). Self-access only.",
		"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("UserPreferences"))),
			"400": openapi.OpResponse("Bad request", openapi.ErrorResponseSchema()),
			"401": openapi.OpResponse("Unauthorized", openapi.ErrorResponseSchema()),
			"403": openapi.OpResponse("Forbidden", openapi.ErrorResponseSchema()),
		},
	})

	return spec
}