//go:build test
// +build test

package fixtures

import (
	"context"
	"fmt"
	"time"

	"github.com/jackc/pgx/v5/pgxpool"
	"golang.org/x/crypto/bcrypt"
)

// Global counter for unique emails in tests
var testEmailCounter int64

func CreateTestAdminUser(pool *pgxpool.Pool) (string, error) {
	return createTestUser(pool, "Admin", "User", "", "admin")
}

func CreateTestUser(pool *pgxpool.Pool) (string, error) {
	return createTestUser(pool, "Test", "User", "", "verified_email")
}

func CreateTestUserWithEmail(pool *pgxpool.Pool, email, role string) (string, error) {
	return createTestUser(pool, "Test", "User", email, role)
}

func createTestUser(pool *pgxpool.Pool, firstName, lastName, email, role string) (string, error) {
	passwordHash, err := bcrypt.GenerateFromPassword([]byte("testpassword123"), bcrypt.DefaultCost)
	if err != nil {
		return "", fmt.Errorf("failed to hash password: %w", err)
	}

	// Generate unique email if not provided
	if email == "" {
		testEmailCounter++
		email = fmt.Sprintf("%s.%s.%d@test.com", firstName, lastName, testEmailCounter)
	}

	ctx := context.Background()
	var userID string
	err = pool.QueryRow(ctx, `
		INSERT INTO users (n_first_name, n_last_name, email, phone, date_of_birth, password_hash, account_role, account_type)
		VALUES ($1, $2, $3, $4, $5, $6, $7, 'email')
		RETURNING id
	`, firstName, lastName, email, "+447123456789", "1990-01-01", string(passwordHash), role).Scan(&userID)

	if err != nil {
		return "", fmt.Errorf("failed to create user: %w", err)
	}

	return userID, nil
}

func CreateTestService(pool *pgxpool.Pool) (string, error) {
	ctx := context.Background()
	var serviceID string
	err := pool.QueryRow(ctx, `
		INSERT INTO services (name, description, price, duration_minutes, is_active, minimum_age_required)
		VALUES ($1, $2, $3, $4, $5, $6)
		RETURNING id
	`, "Test Service", "A test service for unit tests", 50.00, 60, true, 16).Scan(&serviceID)

	if err != nil {
		return "", fmt.Errorf("failed to create service: %w", err)
	}

	return serviceID, nil
}

// CreateTestServiceWithPatchTest creates a service and a patch test that links to it
// Returns serviceID, patchTestID
func CreateTestServiceWithPatchTest(pool *pgxpool.Pool) (string, string, error) {
	ctx := context.Background()

	// First create the service
	var serviceID string
	err := pool.QueryRow(ctx, `
		INSERT INTO services (name, description, price, duration_minutes, is_active, minimum_age_required)
		VALUES ($1, $2, $3, $4, $5, $6)
		RETURNING id
	`, "Test Patch Test Service", "A test service requiring patch test", 75.00, 90, true, 18).Scan(&serviceID)

	if err != nil {
		return "", "", fmt.Errorf("failed to create service: %w", err)
	}

	// Now create a patch test that links to this service
	var patchTestID string
	err = pool.QueryRow(ctx, `
		INSERT INTO patch_tests (name, description, notice_duration_hours, expiry_months, service_ids)
		VALUES ($1, $2, $3, $4, $5)
		RETURNING id
	`, "Test Patch Test", "A patch test for testing", 24, 6, []string{serviceID}).Scan(&patchTestID)

	if err != nil {
		return "", "", fmt.Errorf("failed to create patch test: %w", err)
	}

	return serviceID, patchTestID, nil
}

// CreateTestPatchTest creates a patch test definition
func CreateTestPatchTest(pool *pgxpool.Pool, serviceIDs []string) (string, error) {
	ctx := context.Background()
	var patchTestID string
	err := pool.QueryRow(ctx, `
		INSERT INTO patch_tests (name, description, notice_duration_hours, expiry_months, service_ids)
		VALUES ($1, $2, $3, $4, $5)
		RETURNING id
	`, "Test Patch Test", "A patch test for testing", 24, 6, serviceIDs).Scan(&patchTestID)

	if err != nil {
		return "", fmt.Errorf("failed to create patch test: %w", err)
	}

	return patchTestID, nil
}

// CreateUserPatchTest creates a user patch test record
func CreateUserPatchTest(pool *pgxpool.Pool, userID, patchTestID string, testedAt string) error {
	ctx := context.Background()
	_, err := pool.Exec(ctx, `
		INSERT INTO user_patch_tests (user_id, patch_test_id, tested_at)
		VALUES ($1, $2, $3)
	`, userID, patchTestID, testedAt)

	if err != nil {
		return fmt.Errorf("failed to create user patch test: %w", err)
	}

	return nil
}

func CreateTestBooking(pool *pgxpool.Pool, userID, serviceID string) (string, error) {
	ctx := context.Background()
	var bookingID string
	err := pool.QueryRow(ctx, `
		INSERT INTO bookings (user_id, start_time, status, notes)
		VALUES ($1, $2, $3, $4)
		RETURNING id
	`, userID, "2099-12-31 10:00:00+00", "pending", "Test booking").Scan(&bookingID)

	if err != nil {
		return "", fmt.Errorf("failed to create booking: %w", err)
	}

	_, err = pool.Exec(ctx, `
		INSERT INTO booking_services (booking_id, service_id)
		VALUES ($1, $2)
	`, bookingID, serviceID)

	if err != nil {
		return "", fmt.Errorf("failed to link service to booking: %w", err)
	}

	return bookingID, nil
}

func CreateTestVerifiedUser(pool *pgxpool.Pool) (string, error) {
	return createTestUser(pool, "Verified", "User", "verified@test.com", "verified_email")
}

func CreateTestUnverifiedUser(pool *pgxpool.Pool) (string, error) {
	return createTestUser(pool, "Unverified", "User", "unverified@test.com", "unverified_email")
}

func CreateTestGuestUser(pool *pgxpool.Pool) (string, error) {
	return createTestUser(pool, "Guest", "User", "guest@test.com", "guest")
}

func DeleteUser(pool *pgxpool.Pool, userID string) error {
	ctx := context.Background()
	_, err := pool.Exec(ctx, "DELETE FROM users WHERE id = $1", userID)
	return err
}

func DeleteService(pool *pgxpool.Pool, serviceID string) error {
	ctx := context.Background()
	_, err := pool.Exec(ctx, "DELETE FROM services WHERE id = $1", serviceID)
	return err
}

func DeleteBooking(pool *pgxpool.Pool, bookingID string) error {
	ctx := context.Background()
	_, err := pool.Exec(ctx, "DELETE FROM bookings WHERE id = $1", bookingID)
	return err
}

// SafeDeleteUser wraps DeleteUser and returns error (for tests that care about cleanup failure)
func SafeDeleteUser(db *pgxpool.Pool, userID string) error {
	return DeleteUser(db, userID)
}

// SafeDeleteService wraps DeleteService and returns error (for tests that care about cleanup failure)
func SafeDeleteService(db *pgxpool.Pool, serviceID string) error {
	return DeleteService(db, serviceID)
}

// SafeDeleteBooking wraps DeleteBooking and returns error (for tests that care about cleanup failure)
func SafeDeleteBooking(db *pgxpool.Pool, bookingID string) error {
	return DeleteBooking(db, bookingID)
}

// CreateTestTimeBlocker creates a time blocker for testing
// Returns the blocker ID
func CreateTestTimeBlocker(pool *pgxpool.Pool, startTime time.Time, durationMinutes int, description string) (string, error) {
	ctx := context.Background()
	var blockerID string
	err := pool.QueryRow(ctx, `
		INSERT INTO time_blockers (start_time, duration_minutes, description)
		VALUES ($1, $2, $3)
		RETURNING id
	`, startTime, durationMinutes, description).Scan(&blockerID)

	if err != nil {
		return "", fmt.Errorf("failed to create time blocker: %w", err)
	}

	return blockerID, nil
}

// DeleteTimeBlocker removes a time blocker from the database
func DeleteTimeBlocker(pool *pgxpool.Pool, blockerID string) error {
	ctx := context.Background()
	_, err := pool.Exec(ctx, "DELETE FROM time_blockers WHERE id = $1", blockerID)
	return err
}
