// static/admin/js/settings.js
// noqa: JS-003 - Uses ...baseData which is data() with safety check

const settingsLog = window.LogConfig?.loggers?.settings || console;

function adminSettings() {
    // Get base data with safety check for standalone usage
    const baseData = typeof data === 'function' ? data() : {};

    return {
        // Inherit base layout functionality from init-alpine.js
        ...baseData,

        // Settings-specific state
        currentPage: 'settings',
        loading: true,
        saving: false,
        error: null,
        successMessage: null,
        activeTab: 'display',
        displaySettings: {
            rows_per_page: 20
        },
        logSettings: {
            log_level: 'INFO',
            log_file_max_size_mb: 10,
            log_file_backup_count: 5,
            db_log_retention_days: 30,
            file_logging_enabled: true,
            db_logging_enabled: true
        },
        notificationSettings: {
            email_enabled: true,
            in_app_enabled: true,
            critical_only: false
        },
        shippingSettings: {
            carrier_greco_label_url: 'https://dispatchweb.fr/Tracky/Home/',
            carrier_colissimo_label_url: '',
            carrier_xpresslogistics_label_url: ''
        },
        emailSettings: {
            provider: 'smtp',
            from_email: '',
            from_name: '',
            reply_to: '',
            smtp_host: '',
            smtp_port: 587,
            smtp_user: '',
            mailgun_domain: '',
            aws_region: '',
            debug: false,
            enabled: true,
            is_configured: false,
            has_db_overrides: false
        },
        // Email editing form (separate from display to track changes)
        emailForm: {
            provider: 'smtp',
            from_email: '',
            from_name: '',
            reply_to: '',
            smtp_host: '',
            smtp_port: 587,
            smtp_user: '',
            smtp_password: '',
            smtp_use_tls: true,
            smtp_use_ssl: false,
            sendgrid_api_key: '',
            mailgun_api_key: '',
            mailgun_domain: '',
            aws_access_key_id: '',
            aws_secret_access_key: '',
            aws_region: 'eu-west-1',
            enabled: true,
            debug: false
        },
        emailEditMode: false,
        testEmailAddress: '',
        sendingTestEmail: false,

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

            try {
                settingsLog.info('=== SETTINGS PAGE INITIALIZING ===');
                await Promise.all([
                    this.loadDisplaySettings(),
                    this.loadLogSettings(),
                    this.loadShippingSettings(),
                    this.loadEmailSettings()
                ]);
            } catch (error) {
                settingsLog.error('Init failed:', error);
                this.error = 'Failed to initialize settings page';
            }
        },

        async refresh() {
            this.error = null;
            this.successMessage = null;
            await Promise.all([
                this.loadDisplaySettings(),
                this.loadLogSettings(),
                this.loadShippingSettings(),
                this.loadEmailSettings()
            ]);
        },

        async loadDisplaySettings() {
            try {
                const data = await apiClient.get('/admin/settings/display/rows-per-page');
                this.displaySettings.rows_per_page = data.rows_per_page || 20;
                settingsLog.info('Display settings loaded:', this.displaySettings);
            } catch (error) {
                settingsLog.error('Failed to load display settings:', error);
                // Use default value on error
                this.displaySettings.rows_per_page = 20;
            }
        },

        async saveDisplaySettings() {
            this.saving = true;
            this.error = null;
            this.successMessage = null;

            try {
                const data = await apiClient.put(`/admin/settings/display/rows-per-page?rows=${this.displaySettings.rows_per_page}`);
                this.successMessage = data.message || 'Display settings saved successfully';

                // Clear the cached platform settings so pages pick up the new value
                if (window.PlatformSettings) {
                    window.PlatformSettings.clearCache();
                }

                // Auto-hide success message after 5 seconds
                setTimeout(() => {
                    this.successMessage = null;
                }, 5000);

                settingsLog.info('Display settings saved successfully');
            } catch (error) {
                settingsLog.error('Failed to save display settings:', error);
                this.error = error.response?.data?.detail || 'Failed to save display settings';
            } finally {
                this.saving = false;
            }
        },

        async loadLogSettings() {
            this.loading = true;
            this.error = null;

            try {
                const data = await apiClient.get('/admin/logs/settings');
                this.logSettings = data;
                settingsLog.info('Log settings loaded:', this.logSettings);
            } catch (error) {
                settingsLog.error('Failed to load log settings:', error);
                this.error = error.response?.data?.detail || 'Failed to load log settings';
            } finally {
                this.loading = false;
            }
        },

        async saveLogSettings() {
            this.saving = true;
            this.error = null;
            this.successMessage = null;

            try {
                const data = await apiClient.put('/admin/logs/settings', this.logSettings);
                this.successMessage = data.message || 'Log settings saved successfully';

                // Auto-hide success message after 5 seconds
                setTimeout(() => {
                    this.successMessage = null;
                }, 5000);

                settingsLog.info('Log settings saved successfully');
            } catch (error) {
                settingsLog.error('Failed to save log settings:', error);
                this.error = error.response?.data?.detail || 'Failed to save log settings';
            } finally {
                this.saving = false;
            }
        },

        async cleanupOldLogs() {
            if (!confirm(`This will delete all logs older than ${this.logSettings.db_log_retention_days} days. Continue?`)) {
                return;
            }

            this.error = null;
            this.successMessage = null;

            try {
                const data = await apiClient.delete(
                    `/admin/logs/database/cleanup?retention_days=${this.logSettings.db_log_retention_days}&confirm=true`
                );
                this.successMessage = data.message || 'Old logs cleaned up successfully';

                // Auto-hide success message after 5 seconds
                setTimeout(() => {
                    this.successMessage = null;
                }, 5000);

                settingsLog.info('Old logs cleaned up successfully');
            } catch (error) {
                settingsLog.error('Failed to cleanup logs:', error);
                this.error = error.response?.data?.detail || 'Failed to cleanup old logs';
            }
        },

        async saveNotificationSettings() {
            this.saving = true;
            this.error = null;
            this.successMessage = null;

            try {
                // TODO: Implement API endpoint for notification settings
                // const data = await apiClient.put('/admin/notifications/settings', this.notificationSettings);

                // For now, just show success (settings are client-side only)
                this.successMessage = 'Notification settings saved successfully';

                // Auto-hide success message after 5 seconds
                setTimeout(() => {
                    this.successMessage = null;
                }, 5000);

                settingsLog.info('Notification settings saved:', this.notificationSettings);
            } catch (error) {
                settingsLog.error('Failed to save notification settings:', error);
                this.error = error.response?.data?.detail || 'Failed to save notification settings';
            } finally {
                this.saving = false;
            }
        },

        async loadShippingSettings() {
            try {
                // Load each carrier setting with defaults to avoid 404 errors
                const carriers = [
                    { name: 'greco', default: 'https://dispatchweb.fr/Tracky/Home/' },
                    { name: 'colissimo', default: '' },
                    { name: 'xpresslogistics', default: '' }
                ];
                for (const carrier of carriers) {
                    const key = `carrier_${carrier.name}_label_url`;
                    // Use default query param to avoid 404 for non-existent settings
                    const data = await apiClient.get(`/admin/settings/${key}?default=${encodeURIComponent(carrier.default)}`);
                    if (data && data.value !== undefined) {
                        this.shippingSettings[key] = data.value;
                    }
                }
                settingsLog.info('Shipping settings loaded:', this.shippingSettings);
            } catch (error) {
                settingsLog.error('Failed to load shipping settings:', error);
                // On error, keep existing defaults
            }
        },

        async saveShippingSettings() {
            this.saving = true;
            this.error = null;
            this.successMessage = null;

            try {
                // Save each carrier setting using upsert
                const carriers = [
                    { key: 'carrier_greco_label_url', name: 'Greco' },
                    { key: 'carrier_colissimo_label_url', name: 'Colissimo' },
                    { key: 'carrier_xpresslogistics_label_url', name: 'XpressLogistics' }
                ];

                for (const carrier of carriers) {
                    await apiClient.post('/admin/settings/upsert', {
                        key: carrier.key,
                        value: this.shippingSettings[carrier.key] || '',
                        category: 'shipping',
                        value_type: 'string',
                        description: `Label URL prefix for ${carrier.name} carrier`
                    });
                }

                this.successMessage = 'Shipping settings saved successfully';

                // Auto-hide success message after 5 seconds
                setTimeout(() => {
                    this.successMessage = null;
                }, 5000);

                settingsLog.info('Shipping settings saved:', this.shippingSettings);
            } catch (error) {
                settingsLog.error('Failed to save shipping settings:', error);
                this.error = error.response?.data?.detail || 'Failed to save shipping settings';
            } finally {
                this.saving = false;
            }
        },

        getShippingLabelUrl(carrier, shipmentNumber) {
            // Helper to generate full label URL
            const prefix = this.shippingSettings[`carrier_${carrier}_label_url`] || '';
            if (!prefix || !shipmentNumber) return null;
            return prefix + shipmentNumber;
        },

        // =====================================================================
        // EMAIL SETTINGS
        // =====================================================================

        async loadEmailSettings() {
            try {
                const data = await apiClient.get('/admin/settings/email/status');
                this.emailSettings = {
                    provider: data.provider || 'smtp',
                    from_email: data.from_email || '',
                    from_name: data.from_name || '',
                    reply_to: data.reply_to || '',
                    smtp_host: data.smtp_host || '',
                    smtp_port: data.smtp_port || 587,
                    smtp_user: data.smtp_user || '',
                    mailgun_domain: data.mailgun_domain || '',
                    aws_region: data.aws_region || '',
                    debug: data.debug || false,
                    enabled: data.enabled !== false,
                    is_configured: data.is_configured || false,
                    has_db_overrides: data.has_db_overrides || false
                };
                // Populate edit form with current values
                this.populateEmailForm();
                settingsLog.info('Email settings loaded:', this.emailSettings);
            } catch (error) {
                settingsLog.error('Failed to load email settings:', error);
                // Use defaults on error
            }
        },

        populateEmailForm() {
            // Copy current settings to form (passwords are not loaded from API)
            this.emailForm = {
                provider: this.emailSettings.provider,
                from_email: this.emailSettings.from_email,
                from_name: this.emailSettings.from_name,
                reply_to: this.emailSettings.reply_to || '',
                smtp_host: this.emailSettings.smtp_host || '',
                smtp_port: this.emailSettings.smtp_port || 587,
                smtp_user: this.emailSettings.smtp_user || '',
                smtp_password: '', // Never populated from API
                smtp_use_tls: true,
                smtp_use_ssl: false,
                sendgrid_api_key: '',
                mailgun_api_key: '',
                mailgun_domain: this.emailSettings.mailgun_domain || '',
                aws_access_key_id: '',
                aws_secret_access_key: '',
                aws_region: this.emailSettings.aws_region || 'eu-west-1',
                enabled: this.emailSettings.enabled,
                debug: this.emailSettings.debug
            };
        },

        enableEmailEditing() {
            this.emailEditMode = true;
            this.populateEmailForm();
        },

        cancelEmailEditing() {
            this.emailEditMode = false;
            this.populateEmailForm();
        },

        async saveEmailSettings() {
            this.saving = true;
            this.error = null;
            this.successMessage = null;

            try {
                // Only send non-empty values to update
                const payload = {};

                // Always send these core fields
                if (this.emailForm.provider) payload.provider = this.emailForm.provider;
                if (this.emailForm.from_email) payload.from_email = this.emailForm.from_email;
                if (this.emailForm.from_name) payload.from_name = this.emailForm.from_name;
                if (this.emailForm.reply_to) payload.reply_to = this.emailForm.reply_to;
                payload.enabled = this.emailForm.enabled;
                payload.debug = this.emailForm.debug;

                // Provider-specific fields
                if (this.emailForm.provider === 'smtp') {
                    if (this.emailForm.smtp_host) payload.smtp_host = this.emailForm.smtp_host;
                    if (this.emailForm.smtp_port) payload.smtp_port = this.emailForm.smtp_port;
                    if (this.emailForm.smtp_user) payload.smtp_user = this.emailForm.smtp_user;
                    if (this.emailForm.smtp_password) payload.smtp_password = this.emailForm.smtp_password;
                    payload.smtp_use_tls = this.emailForm.smtp_use_tls;
                    payload.smtp_use_ssl = this.emailForm.smtp_use_ssl;
                } else if (this.emailForm.provider === 'sendgrid') {
                    if (this.emailForm.sendgrid_api_key) payload.sendgrid_api_key = this.emailForm.sendgrid_api_key;
                } else if (this.emailForm.provider === 'mailgun') {
                    if (this.emailForm.mailgun_api_key) payload.mailgun_api_key = this.emailForm.mailgun_api_key;
                    if (this.emailForm.mailgun_domain) payload.mailgun_domain = this.emailForm.mailgun_domain;
                } else if (this.emailForm.provider === 'ses') {
                    if (this.emailForm.aws_access_key_id) payload.aws_access_key_id = this.emailForm.aws_access_key_id;
                    if (this.emailForm.aws_secret_access_key) payload.aws_secret_access_key = this.emailForm.aws_secret_access_key;
                    if (this.emailForm.aws_region) payload.aws_region = this.emailForm.aws_region;
                }

                const data = await apiClient.put('/admin/settings/email/settings', payload);

                this.successMessage = data.message || 'Email settings saved successfully';
                this.emailEditMode = false;

                // Reload to get updated status
                await this.loadEmailSettings();

                setTimeout(() => {
                    this.successMessage = null;
                }, 5000);

                settingsLog.info('Email settings saved successfully');
            } catch (error) {
                settingsLog.error('Failed to save email settings:', error);
                this.error = error.message || 'Failed to save email settings';
            } finally {
                this.saving = false;
            }
        },

        async resetEmailSettings() {
            if (!confirm('This will reset all email settings to use .env defaults. Continue?')) {
                return;
            }

            this.saving = true;
            this.error = null;
            this.successMessage = null;

            try {
                const data = await apiClient.delete('/admin/settings/email/settings');

                this.successMessage = data.message || 'Email settings reset to defaults';
                this.emailEditMode = false;

                // Reload to get .env values
                await this.loadEmailSettings();

                setTimeout(() => {
                    this.successMessage = null;
                }, 5000);

                settingsLog.info('Email settings reset successfully');
            } catch (error) {
                settingsLog.error('Failed to reset email settings:', error);
                this.error = error.message || 'Failed to reset email settings';
            } finally {
                this.saving = false;
            }
        },

        async sendTestEmail() {
            if (!this.testEmailAddress) {
                this.error = 'Please enter a test email address';
                return;
            }

            this.sendingTestEmail = true;
            this.error = null;
            this.successMessage = null;

            try {
                const data = await apiClient.post('/admin/settings/email/test', {
                    to_email: this.testEmailAddress
                });

                if (data.success) {
                    this.successMessage = `Test email sent to ${this.testEmailAddress}`;
                    setTimeout(() => {
                        this.successMessage = null;
                    }, 5000);
                } else {
                    this.error = data.message || 'Failed to send test email';
                }
            } catch (error) {
                settingsLog.error('Failed to send test email:', error);
                this.error = error.message || 'Failed to send test email';
            } finally {
                this.sendingTestEmail = false;
            }
        }
    };
}

settingsLog.info('Settings module loaded');