package bdd

import (
	"fmt"
	"os"
	"strings"
	"time"

	"dance-lessons-coach/pkg/bdd/steps"
	"dance-lessons-coach/pkg/bdd/testserver"

	"github.com/cucumber/godog"
	"github.com/rs/zerolog/log"
)

var sharedServer *testserver.Server
var sharedStepContext *steps.StepContext

// isCleanupLoggingEnabled returns true if BDD_ENABLE_CLEANUP_LOGS environment variable is set to "true"
func isCleanupLoggingEnabled() bool {
	return os.Getenv("BDD_ENABLE_CLEANUP_LOGS") == "true"
}

// isSchemaIsolationEnabled returns true if BDD_SCHEMA_ISOLATION environment variable is set to "true"
func isSchemaIsolationEnabled() bool {
	return os.Getenv("BDD_SCHEMA_ISOLATION") == "true"
}

func InitializeTestSuite(ctx *godog.TestSuiteContext) {
	ctx.BeforeSuite(func() {
		// Small delay to ensure any previous server instances are fully cleaned up
		time.Sleep(50 * time.Millisecond)

		sharedServer = testserver.NewServer()
		if err := sharedServer.Start(); err != nil {
			// Improved error message for port conflicts
			if strings.Contains(err.Error(), "address already in use") {
				panic(fmt.Sprintf("Port conflict: %v. Try running 'lsof -i :9191' and 'kill -9 <PID>' to free the port", err))
			}
			panic(fmt.Sprintf("Failed to start test server: %v", err))
		}
	})

	sc := ctx.ScenarioContext()
	sc.BeforeScenario(func(s *godog.Scenario) {
		// Get feature name from environment - falls back to "bdd" for multi-feature tests
		feature := os.Getenv("FEATURE")
		if feature == "" {
			feature = "bdd"
		}

		// Generate scenario key for state isolation
		scenarioKey := s.Name
		if s.Uri != "" {
			scenarioKey = fmt.Sprintf("%s:%s", s.Uri, s.Name)
		}

		// Set scenario key on all step instances for state isolation
		if sharedStepContext != nil {
			steps.SetScenarioKeyForAllSteps(sharedStepContext, scenarioKey)
			// Also clear state for this scenario to ensure clean start
			steps.ClearScenarioState(scenarioKey)
		}

		if isCleanupLoggingEnabled() {
			log.Info().Str("feature", feature).Str("scenario", s.Name).Msg("CLEANUP: Scenario starting")
		}

		// Trace scenario start
		testserver.TraceStateScenarioStart(feature, scenarioKey)

		// Setup schema isolation if enabled
		if sharedServer != nil {
			if err := sharedServer.SetupScenarioSchema(feature, scenarioKey); err != nil {
				if isCleanupLoggingEnabled() {
					log.Warn().Err(err).Str("feature", feature).Str("scenario", scenarioKey).Msg("ISOLATION: Failed to setup scenario schema")
				}
			}
		}
	})

	sc.AfterScenario(func(s *godog.Scenario, err error) {
		// Get feature name from environment - falls back to "bdd" for multi-feature tests
		feature := os.Getenv("FEATURE")
		if feature == "" {
			feature = "bdd"
		}

		if isCleanupLoggingEnabled() {
			log.Info().Str("scenario", s.Name).Str("status", "completed").Err(err).Msg("CLEANUP: Scenario completed")
		}

		// Trace scenario end
		scenarioKey := s.Name
		if s.Uri != "" {
			scenarioKey = fmt.Sprintf("%s:%s", s.Uri, s.Name)
		}
		testserver.TraceStateScenarioEnd(feature, scenarioKey, err)

		if sharedServer != nil {
			// Teardown schema isolation if enabled
			if teardownErr := sharedServer.TeardownScenarioSchema(); teardownErr != nil {
				if isCleanupLoggingEnabled() {
					log.Warn().Err(teardownErr).Msg("ISOLATION: Failed to teardown scenario schema")
				}
			}

			// Reset JWT secrets after every scenario to prevent pollution
			// Note: This is still needed for in-memory state even with schema isolation
			if resetErr := sharedServer.ResetJWTSecrets(); resetErr != nil {
				if isCleanupLoggingEnabled() {
					log.Warn().Err(resetErr).Msg("CLEANUP: Failed to reset JWT secrets after scenario")
				}
			} else {
				testserver.TraceStateJWTSecretOperation(feature, scenarioKey, "RESET", "ok")
			}

			// Clean database after every scenario (only if schema isolation is disabled)
			if !isSchemaIsolationEnabled() {
				if cleanupErr := sharedServer.CleanupDatabase(); cleanupErr != nil {
					if isCleanupLoggingEnabled() {
						log.Warn().Err(cleanupErr).Msg("CLEANUP: Failed to cleanup database after scenario")
					}
				} else {
					testserver.TraceStateDBCleanup(feature, scenarioKey, "all_tables")
				}
			}
		}
	})

	ctx.AfterSuite(func() {
		if sharedServer != nil {
			// Final cleanup
			if err := sharedServer.Stop(); err != nil {
				log.Warn().Err(err).Msg("Failed to shutdown HTTP server")
			}
			time.Sleep(100 * time.Millisecond)
		}
		// Clear all scenario states
		steps.ClearAllScenarioStates()
		steps.CleanupAllTestConfigFiles()
	})
}

func InitializeScenario(ctx *godog.ScenarioContext) {
	client := testserver.NewClient(sharedServer)
	// Create and store the step context for scenario isolation
	sharedStepContext = steps.NewStepContext(client)
	steps.InitializeAllSteps(ctx, client, sharedStepContext)
}