<?php

namespace App\Http\Controllers;

use App\Settings\GeneralSettings;
use App\Settings\ServiceSettings;
use App\Settings\InventorySettings;
use App\Settings\NotificationSettings;
use App\Settings\SecuritySettings;
use Illuminate\Http\Request;
use Illuminate\Validation\Rule;

class SettingsController extends Controller
{
    public function general(GeneralSettings $settings)
    {
        return view('settings.general', compact('settings'));
    }

    public function updateGeneral(Request $request, GeneralSettings $settings)
    {
        $validated = $request->validate([
            'shop_name' => 'required|string|max:255',
            'shop_address' => 'required|string|max:255',
            'shop_city' => 'required|string|max:100',
            'shop_state' => 'required|string|max:100',
            'shop_zip_code' => 'required|string|max:20',
            'shop_phone' => 'required|string|max:20',
            'shop_email' => 'required|email|max:255',
            'shop_website' => 'nullable|url|max:255',
            'default_tax_rate' => 'required|numeric|min:0|max:100',
            'currency' => 'required|string|max:10',
            'currency_symbol' => 'required|string|max:5',
            'timezone' => 'required|string',
            'date_format' => 'required|string',
            'time_format' => 'required|string',
            'enable_notifications' => 'nullable|boolean',
            'enable_sms_notifications' => 'nullable|boolean',
            'enable_email_notifications' => 'nullable|boolean',
            'is_open_weekends' => 'nullable|boolean',
            'business_hours' => 'nullable|array',
            'holiday_hours' => 'nullable|array',
        ]);

        // Handle boolean fields that might not be present in request
        $validated['enable_notifications'] = $request->has('enable_notifications');
        $validated['enable_sms_notifications'] = $request->has('enable_sms_notifications');
        $validated['enable_email_notifications'] = $request->has('enable_email_notifications');
        $validated['is_open_weekends'] = $request->has('is_open_weekends');

        // Ensure arrays have default values if not provided
        $validated['business_hours'] = $validated['business_hours'] ?? $settings->business_hours ?? [];
        $validated['holiday_hours'] = $validated['holiday_hours'] ?? $settings->holiday_hours ?? [];

        foreach ($validated as $key => $value) {
            $settings->$key = $value;
        }

        $settings->save();

        return redirect()->back()->with('success', 'General settings updated successfully!');
    }

    public function service(ServiceSettings $settings)
    {
        return view('settings.service', compact('settings'));
    }

    public function updateService(Request $request, ServiceSettings $settings)
    {
        $validated = $request->validate([
            'standard_labor_rate' => 'required|numeric|min:0',
            'overtime_labor_rate' => 'required|numeric|min:0',
            'weekend_labor_rate' => 'required|numeric|min:0',
            'holiday_labor_rate' => 'required|numeric|min:0',
            'oil_change_interval' => 'required|integer|min:1000',
            'tire_rotation_interval' => 'required|integer|min:1000',
            'brake_inspection_interval' => 'required|integer|min:1000',
            'general_inspection_interval' => 'required|integer|min:1000',
            'enable_service_reminders' => 'nullable|boolean',
            'reminder_advance_days' => 'required|integer|min:1|max:90',
            'default_parts_warranty_days' => 'required|integer|min:1',
            'default_labor_warranty_days' => 'required|integer|min:1',
            'enable_extended_warranty' => 'nullable|boolean',
            'require_quality_inspection' => 'nullable|boolean',
            'require_technician_signature' => 'nullable|boolean',
            'require_customer_signature' => 'nullable|boolean',
            'enable_photo_documentation' => 'nullable|boolean',
            'service_categories' => 'nullable|array',
            'priority_levels' => 'nullable|array',
        ]);

        // Handle boolean fields that might not be present in request
        $validated['enable_service_reminders'] = $request->has('enable_service_reminders');
        $validated['enable_extended_warranty'] = $request->has('enable_extended_warranty');
        $validated['require_quality_inspection'] = $request->has('require_quality_inspection');
        $validated['require_technician_signature'] = $request->has('require_technician_signature');
        $validated['require_customer_signature'] = $request->has('require_customer_signature');
        $validated['enable_photo_documentation'] = $request->has('enable_photo_documentation');

        // Ensure arrays have default values if not provided
        $validated['service_categories'] = $validated['service_categories'] ?? $settings->service_categories ?? [];
        $validated['priority_levels'] = $validated['priority_levels'] ?? $settings->priority_levels ?? [];

        foreach ($validated as $key => $value) {
            $settings->$key = $value;
        }

        $settings->save();

        return redirect()->back()->with('success', 'Service settings updated successfully!');
    }

    public function inventory(InventorySettings $settings)
    {
        return view('settings.inventory', compact('settings'));
    }

    public function updateInventory(Request $request, InventorySettings $settings)
    {
        $validated = $request->validate([
            'low_stock_threshold' => 'required|integer|min:1',
            'critical_stock_threshold' => 'required|integer|min:1',
            'default_reorder_quantity' => 'required|integer|min:1',
            'default_lead_time_days' => 'required|integer|min:1',
            'default_markup_percentage' => 'required|numeric|min:0',
            'preferred_supplier_count' => 'required|integer|min:1',
            'minimum_order_amount' => 'required|numeric|min:0',
            'default_part_markup' => 'required|numeric|min:0',
            'core_charge_percentage' => 'required|numeric|min:0',
            'shop_supply_fee' => 'required|numeric|min:0',
            'environmental_fee' => 'required|numeric|min:0',
            'waste_oil_fee' => 'required|numeric|min:0',
            'tire_disposal_fee' => 'required|numeric|min:0',
            'default_payment_terms' => 'required|string',
            'preferred_ordering_method' => 'required|string',
            'free_shipping_threshold' => 'nullable|numeric|min:0',
            'enable_low_stock_alerts' => 'nullable|boolean',
            'enable_automatic_reorder' => 'nullable|boolean',
            'track_serial_numbers' => 'nullable|boolean',
            'enable_barcode_scanning' => 'nullable|boolean',
            'enable_volume_discounts' => 'nullable|boolean',
            'enable_seasonal_pricing' => 'nullable|boolean',
            'enable_customer_specific_pricing' => 'nullable|boolean',
            'require_po_approval' => 'nullable|boolean',
            'enable_dropship' => 'nullable|boolean',
            'enable_backorders' => 'nullable|boolean',
        ]);

        // Handle boolean fields that might not be present in request
        $validated['enable_low_stock_alerts'] = $request->has('enable_low_stock_alerts');
        $validated['enable_auto_reorder'] = $request->has('enable_automatic_reorder'); // Map form field to DB field
        $validated['track_serial_numbers'] = $request->has('track_serial_numbers');
        $validated['enable_barcode_scanning'] = $request->has('enable_barcode_scanning');
        $validated['enable_volume_discounts'] = $request->has('enable_volume_discounts');
        $validated['enable_seasonal_pricing'] = $request->has('enable_seasonal_pricing');
        $validated['enable_customer_specific_pricing'] = $request->has('enable_customer_specific_pricing');
        $validated['require_po_approval'] = $request->has('require_po_approval');
        $validated['enable_dropship'] = $request->has('enable_dropship');
        $validated['enable_backorders'] = $request->has('enable_backorders');

        foreach ($validated as $key => $value) {
            $settings->$key = $value;
        }

        $settings->save();

        return redirect()->back()->with('success', 'Inventory settings updated successfully!');
    }

    public function notifications(NotificationSettings $settings)
    {
        return view('settings.notifications', compact('settings'));
    }

    public function updateNotifications(Request $request, NotificationSettings $settings)
    {        
        $validated = $request->validate([
            'from_email' => 'required|email',
            'from_name' => 'required|string|max:255',
            'manager_email' => 'required|email',
            'enable_customer_notifications' => 'nullable|boolean',
            'enable_technician_notifications' => 'nullable|boolean',
            'enable_manager_notifications' => 'nullable|boolean',
            'enable_sms' => 'nullable|boolean',
            'sms_provider' => 'nullable|string',
            'sms_api_key' => 'nullable|string',
            'sms_from_number' => 'nullable|string',
            'customer_notification_types' => 'nullable|array',
            'notification_timing' => 'nullable|array',
            'notify_on_new_job' => 'nullable|boolean',
            'notify_on_job_completion' => 'nullable|boolean',
            'notify_on_low_stock' => 'nullable|boolean',
            'notify_on_overdue_inspection' => 'nullable|boolean',
            'notify_on_warranty_expiry' => 'nullable|boolean',
            'enable_escalation' => 'nullable|boolean',
            'escalation_hours' => 'required|integer|min:1',
            'escalation_contacts' => 'nullable|array',
        ]);

        // Handle boolean fields that might not be present in request
        $validated['enable_customer_notifications'] = $request->has('enable_customer_notifications');
        $validated['enable_technician_notifications'] = $request->has('enable_technician_notifications');
        $validated['enable_manager_notifications'] = $request->has('enable_manager_notifications');
        $validated['enable_sms'] = $request->has('enable_sms');
        $validated['notify_on_new_job'] = $request->has('notify_on_new_job');
        $validated['notify_on_job_completion'] = $request->has('notify_on_job_completion');
        $validated['notify_on_low_stock'] = $request->has('notify_on_low_stock');
        $validated['notify_on_overdue_inspection'] = $request->has('notify_on_overdue_inspection');
        $validated['notify_on_warranty_expiry'] = $request->has('notify_on_warranty_expiry');
        $validated['enable_escalation'] = $request->has('enable_escalation');

        // Ensure arrays have default values if not provided
        $validated['customer_notification_types'] = $validated['customer_notification_types'] ?? $settings->customer_notification_types ?? [];
        $validated['notification_timing'] = $validated['notification_timing'] ?? $settings->notification_timing ?? [];
        $validated['escalation_contacts'] = $validated['escalation_contacts'] ?? $settings->escalation_contacts ?? [];

        foreach ($validated as $key => $value) {
            $settings->$key = $value;
        }

        $settings->save();

        return redirect()->back()->with('success', 'Notification settings updated successfully!');
    }

    public function security(SecuritySettings $settings)
    {
        return view('settings.security', compact('settings'));
    }

    public function updateSecurity(Request $request, SecuritySettings $settings)
    {
        $validated = $request->validate([
            'enable_two_factor_auth' => 'nullable|boolean',
            'session_timeout_minutes' => 'required|integer|min:5',
            'password_expiry_days' => 'required|integer|min:1',
            'max_login_attempts' => 'required|integer|min:1',
            'lockout_duration_minutes' => 'required|integer|min:1',
            'min_password_length' => 'required|integer|min:6',
            'require_uppercase' => 'nullable|boolean',
            'require_lowercase' => 'nullable|boolean',
            'require_numbers' => 'nullable|boolean',
            'require_special_characters' => 'nullable|boolean',
            'enable_data_encryption' => 'nullable|boolean',
            'enable_audit_logging' => 'nullable|boolean',
            'audit_log_retention_days' => 'required|integer|min:1',
            'enable_backup_alerts' => 'nullable|boolean',
            'enable_api_rate_limiting' => 'nullable|boolean',
            'api_requests_per_minute' => 'required|integer|min:1',
            'allowed_ip_addresses' => 'nullable|string',
            'allow_customer_portal' => 'nullable|boolean',
            'allow_customer_data_download' => 'nullable|boolean',
            'customer_session_timeout_minutes' => 'required|integer|min:5',
        ]);

        // Handle boolean fields that might not be present in request
        $validated['enable_two_factor_auth'] = $request->has('enable_two_factor_auth');
        $validated['require_uppercase'] = $request->has('require_uppercase');
        $validated['require_lowercase'] = $request->has('require_lowercase');
        $validated['require_numbers'] = $request->has('require_numbers');
        $validated['require_special_characters'] = $request->has('require_special_characters');
        $validated['enable_data_encryption'] = $request->has('enable_data_encryption');
        $validated['enable_audit_logging'] = $request->has('enable_audit_logging');
        $validated['enable_backup_alerts'] = $request->has('enable_backup_alerts');
        $validated['enable_api_rate_limiting'] = $request->has('enable_api_rate_limiting');
        $validated['allow_customer_portal'] = $request->has('allow_customer_portal');
        $validated['allow_customer_data_download'] = $request->has('allow_customer_data_download');

        // Convert IP addresses from textarea to array
        if (!empty($validated['allowed_ip_addresses'])) {
            $validated['allowed_ip_addresses'] = array_filter(
                array_map('trim', explode("\n", $validated['allowed_ip_addresses'])),
                function($ip) { return !empty($ip); }
            );
        } else {
            $validated['allowed_ip_addresses'] = [];
        }

        foreach ($validated as $key => $value) {
            $settings->$key = $value;
        }

        $settings->save();

        return redirect()->back()->with('success', 'Security settings updated successfully!');
    }
}