// app/static/store/js/login.js
// noqa: js-003 - Standalone login page without store layout
// noqa: js-004 - Standalone page has no currentPage sidebar highlight
/**
 * Store login page logic
 */

// Create custom logger for store login page
const storeLoginLog = window.LogConfig.createLogger('STORE-LOGIN');

function languageSelector(currentLang, enabledLanguages) {
    return {
        currentLang: currentLang || 'fr',
        languages: enabledLanguages || ['en', 'fr', 'de', 'lb'],
        async setLanguage(lang) {
            if (lang === this.currentLang) return;
            try {
                // noqa: JS-008 - Login page has no apiClient; raw fetch is intentional
                await fetch('/api/v1/platform/language/set', {
                    method: 'POST',
                    headers: { 'Content-Type': 'application/json' },
                    body: JSON.stringify({ language: lang }),
                });
                window.location.reload();
            } catch (error) {
                storeLoginLog.error('Failed to set language:', error);
            }
        },
    };
}

function storeLogin() {
    return {
        credentials: {
            username: '',
            password: ''
        },
        store: null,
        storeCode: null,
        loading: false,
        checked: false,
        error: '',
        success: '',
        errors: {},
        dark: false,

        async init() {
            // Guard against multiple initialization
            if (window._storeLoginInitialized) return;
            window._storeLoginInitialized = true;

            try {
                storeLoginLog.info('=== STORE LOGIN PAGE INITIALIZING ===');

                // Load theme
                const theme = localStorage.getItem('theme');
                if (theme === 'dark') {
                    this.dark = true;
                }
                storeLoginLog.debug('Dark mode:', this.dark);

                // Get store code from URL path
                // Supports both /store/{code}/login and /platforms/{platform}/store/{code}/login
                const pathSegments = window.location.pathname.split('/').filter(Boolean);
                const storeIndex = pathSegments.indexOf('store');
                if (storeIndex !== -1 && pathSegments[storeIndex + 1]) {
                    this.storeCode = pathSegments[storeIndex + 1];
                    storeLoginLog.debug('Store code from URL:', this.storeCode);
                    await this.loadStore();
                }
                this.checked = true;
                storeLoginLog.info('=== STORE LOGIN PAGE INITIALIZATION COMPLETE ===');
            } catch (error) {
                storeLoginLog.error('Failed to initialize login page:', error);
                this.checked = true;
            }
        },

        async loadStore() {
            storeLoginLog.info('Loading store information...');
            this.loading = true;
            try {
                const response = await apiClient.get(`/store/info/${this.storeCode}`);
                this.store = response;
                storeLoginLog.info('Store loaded successfully:', {
                    code: this.store.code,
                    name: this.store.name
                });
            } catch (error) {
                window.LogConfig.logError(error, 'Load Store');
                this.error = 'Failed to load store information';
            } finally {
                this.loading = false;
            }
        },

        async handleLogin() {
            storeLoginLog.info('=== STORE LOGIN ATTEMPT STARTED ===');
            this.clearErrors();
            this.loading = true;

            try {
                if (!this.credentials.username) {
                    this.errors.username = 'Username is required';
                }
                if (!this.credentials.password) {
                    this.errors.password = 'Password is required';
                }

                if (Object.keys(this.errors).length > 0) {
                    storeLoginLog.warn('Validation failed:', this.errors);
                    this.loading = false;
                    return;
                }

                storeLoginLog.info('Calling store login API...');
                storeLoginLog.debug('Username:', this.credentials.username);
                storeLoginLog.debug('Store code:', this.storeCode);

                window.LogConfig.logApiCall('POST', '/store/auth/login', {
                    username: this.credentials.username,
                    store_code: this.storeCode
                }, 'request');

                const startTime = performance.now();
                const response = await apiClient.post('/store/auth/login', {
                    email_or_username: this.credentials.username,
                    password: this.credentials.password,
                    store_code: this.storeCode
                });
                const duration = performance.now() - startTime;

                window.LogConfig.logApiCall('POST', '/store/auth/login', {
                    hasToken: !!response.access_token,
                    user: response.user?.username
                }, 'response');
                window.LogConfig.logPerformance('Store Login', duration);

                storeLoginLog.info('Login successful!');
                storeLoginLog.debug('Storing authentication data...');

                // Store token with correct key that apiClient expects
                localStorage.setItem('store_token', response.access_token);
                localStorage.setItem('currentUser', JSON.stringify(response.user));
                localStorage.setItem('storeCode', this.storeCode);
                storeLoginLog.debug('Token stored as store_token in localStorage');

                this.success = 'Login successful! Redirecting...';

                // Check for last visited page (saved before logout)
                const lastPage = localStorage.getItem('store_last_visited_page');
                const validLastPage = lastPage &&
                    lastPage.startsWith(`/store/${this.storeCode}/`) &&
                    !lastPage.includes('/login') &&
                    !lastPage.includes('/onboarding');
                const redirectTo = validLastPage ? lastPage : `/store/${this.storeCode}/dashboard`;

                storeLoginLog.info('Last visited page:', lastPage);
                storeLoginLog.info('Redirecting to:', redirectTo);

                setTimeout(() => {
                    window.location.href = redirectTo;
                }, 1000);

            } catch (error) {
                window.LogConfig.logError(error, 'Store Login');

                if (error.status === 401) {
                    this.error = 'Invalid username or password';
                } else if (error.status === 403) {
                    this.error = 'Your account does not have access to this store';
                } else {
                    this.error = error.message || 'Login failed. Please try again.';
                }
                storeLoginLog.info('Error message displayed to user:', this.error);
            } finally {
                this.loading = false;
                storeLoginLog.info('=== STORE LOGIN ATTEMPT FINISHED ===');
            }
        },

        // Forgot password state
        rememberMe: false,
        showForgotPassword: false,
        forgotPasswordEmail: '',
        forgotPasswordLoading: false,

        async handleForgotPassword() {
            storeLoginLog.info('=== FORGOT PASSWORD ATTEMPT ===');
            if (!this.forgotPasswordEmail.trim()) {
                this.error = 'Email is required';
                return;
            }

            this.forgotPasswordLoading = true;
            this.clearErrors();

            try {
                await apiClient.post('/store/auth/forgot-password', {
                    email: this.forgotPasswordEmail.trim()
                });
                this.success = 'If an account exists with this email, a password reset link has been sent.';
                this.forgotPasswordEmail = '';
            } catch (error) {
                window.LogConfig.logError(error, 'ForgotPassword');
                this.error = error.message || 'Failed to send reset email. Please try again.';
            } finally {
                this.forgotPasswordLoading = false;
            }
        },

        clearErrors() {
            storeLoginLog.debug('Clearing form errors');
            this.error = '';
            this.errors = {};
        },

        toggleDarkMode() {
            storeLoginLog.debug('Toggling dark mode...');
            this.dark = !this.dark;
            localStorage.setItem('theme', this.dark ? 'dark' : 'light');
            storeLoginLog.info('Dark mode:', this.dark ? 'ON' : 'OFF');
        }
    };
}

storeLoginLog.info('Store login module loaded');