// static/admin/js/vendor-edit.js

// Log levels: 0 = None, 1 = Error, 2 = Warning, 3 = Info, 4 = Debug
const VENDOR_EDIT_LOG_LEVEL = 3;

const editLog = {
    error: (...args) => VENDOR_EDIT_LOG_LEVEL >= 1 && console.error('❌ [VENDOR_EDIT ERROR]', ...args),
    warn: (...args) => VENDOR_EDIT_LOG_LEVEL >= 2 && console.warn('⚠️ [VENDOR_EDIT WARN]', ...args),
    info: (...args) => VENDOR_EDIT_LOG_LEVEL >= 3 && console.info('ℹ️ [VENDOR_EDIT INFO]', ...args),
    debug: (...args) => VENDOR_EDIT_LOG_LEVEL >= 4 && console.log('🔍 [VENDOR_EDIT DEBUG]', ...args)
};

function adminVendorEdit() {
    return {
        // Inherit base layout functionality from init-alpine.js
        ...data(),

        // Vendor edit page specific state
        currentPage: 'vendor-edit',
        vendor: null,
        formData: {},
        errors: {},
        loadingVendor: false,
        saving: false,
        vendorCode: null,

        // Initialize
        async init() {
            editLog.info('=== VENDOR EDIT PAGE INITIALIZING ===');

            // Prevent multiple initializations
            if (window._vendorEditInitialized) {
                editLog.warn('Vendor edit page already initialized, skipping...');
                return;
            }
            window._vendorEditInitialized = true;

            // Get vendor code from URL
            const path = window.location.pathname;
            const match = path.match(/\/admin\/vendors\/([^\/]+)\/edit/);

            if (match) {
                this.vendorCode = match[1];
                editLog.info('Editing vendor:', this.vendorCode);
                await this.loadVendor();
            } else {
                editLog.error('No vendor code in URL');
                Utils.showToast('Invalid vendor URL', 'error');
                setTimeout(() => window.location.href = '/admin/vendors', 2000);
            }

            editLog.info('=== VENDOR EDIT PAGE INITIALIZATION COMPLETE ===');
        },

        // Load vendor data
        async loadVendor() {
            editLog.info('Loading vendor data...');
            this.loadingVendor = true;

            try {
                const startTime = Date.now();
                const response = await apiClient.get(`/admin/vendors/${this.vendorCode}`);
                const duration = Date.now() - startTime;

                this.vendor = response;

                // Initialize form data
                this.formData = {
                    name: response.name || '',
                    subdomain: response.subdomain || '',
                    description: response.description || '',
                    contact_email: response.contact_email || '',
                    contact_phone: response.contact_phone || '',
                    website: response.website || '',
                    business_address: response.business_address || '',
                    tax_number: response.tax_number || ''
                };

                editLog.info(`Vendor loaded in ${duration}ms`, {
                    vendor_code: this.vendor.vendor_code,
                    name: this.vendor.name
                });
                editLog.debug('Form data initialized:', this.formData);

            } catch (error) {
                editLog.error('Failed to load vendor:', error);
                Utils.showToast('Failed to load vendor', 'error');
                setTimeout(() => window.location.href = '/admin/vendors', 2000);
            } finally {
                this.loadingVendor = false;
            }
        },

        // Format subdomain
        formatSubdomain() {
            this.formData.subdomain = this.formData.subdomain
                .toLowerCase()
                .replace(/[^a-z0-9-]/g, '');
            editLog.debug('Subdomain formatted:', this.formData.subdomain);
        },

        // Submit form
        async handleSubmit() {
            editLog.info('=== SUBMITTING VENDOR UPDATE ===');
            editLog.debug('Form data:', this.formData);

            this.errors = {};
            this.saving = true;

            try {
                const startTime = Date.now();
                const response = await apiClient.put(
                    `/admin/vendors/${this.vendorCode}`,
                    this.formData
                );
                const duration = Date.now() - startTime;

                this.vendor = response;
                Utils.showToast('Vendor updated successfully', 'success');
                editLog.info(`Vendor updated successfully in ${duration}ms`, response);

                // Optionally redirect back to list
                // setTimeout(() => window.location.href = '/admin/vendors', 1500);

            } catch (error) {
                editLog.error('Failed to update vendor:', error);

                // Handle validation errors
                if (error.details && error.details.validation_errors) {
                    error.details.validation_errors.forEach(err => {
                        const field = err.loc?.[1] || err.loc?.[0];
                        if (field) {
                            this.errors[field] = err.msg;
                        }
                    });
                    editLog.debug('Validation errors:', this.errors);
                }

                Utils.showToast(error.message || 'Failed to update vendor', 'error');
            } finally {
                this.saving = false;
                editLog.info('=== VENDOR UPDATE COMPLETE ===');
            }
        },

        // Toggle verification
        async toggleVerification() {
            const action = this.vendor.is_verified ? 'unverify' : 'verify';
            editLog.info(`Toggle verification: ${action}`);

            if (!confirm(`Are you sure you want to ${action} this vendor?`)) {
                editLog.info('Verification toggle cancelled by user');
                return;
            }

            this.saving = true;
            try {
                const response = await apiClient.put(
                    `/admin/vendors/${this.vendorCode}/verification`,
                    { is_verified: !this.vendor.is_verified }
                );

                this.vendor = response;
                Utils.showToast(`Vendor ${action}ed successfully`, 'success');
                editLog.info(`Vendor ${action}ed successfully`);

            } catch (error) {
                editLog.error(`Failed to ${action} vendor:`, error);
                Utils.showToast(`Failed to ${action} vendor`, 'error');
            } finally {
                this.saving = false;
            }
        },

        // Toggle active status
        async toggleActive() {
            const action = this.vendor.is_active ? 'deactivate' : 'activate';
            editLog.info(`Toggle active status: ${action}`);

            if (!confirm(`Are you sure you want to ${action} this vendor?\n\nThis will affect their operations.`)) {
                editLog.info('Active status toggle cancelled by user');
                return;
            }

            this.saving = true;
            try {
                const response = await apiClient.put(
                    `/admin/vendors/${this.vendorCode}/status`,
                    { is_active: !this.vendor.is_active }
                );

                this.vendor = response;
                Utils.showToast(`Vendor ${action}d successfully`, 'success');
                editLog.info(`Vendor ${action}d successfully`);

            } catch (error) {
                editLog.error(`Failed to ${action} vendor:`, error);
                Utils.showToast(`Failed to ${action} vendor`, 'error');
            } finally {
                this.saving = false;
            }
        }
    };
}

editLog.info('Vendor edit module loaded');