<?php

namespace Database\Seeders;

use Illuminate\Database\Seeder;
use Spatie\Permission\Models\Role;
use Spatie\Permission\Models\Permission;
use App\Models\User;

class PermissionSeeder extends Seeder
{
    /**
     * Run the database seeds.
     */
    public function run(): void
    {
        // 重置快取
        app()[\Spatie\Permission\PermissionRegistrar::class]->forgetCachedPermissions();

        // 建立權限
        $permissions = [
            // 產品管理
            'products.view',
            'products.create',
            'products.edit',
            'products.delete',

            // 採購單管理
            'purchase_orders.view',
            'purchase_orders.create',
            'purchase_orders.edit',
            'purchase_orders.delete',
            'purchase_orders.publish',

            // 庫存管理
            'inventory.view',
            'inventory.adjust',
            'inventory.transfer',

            // 供應商管理
            'vendors.view',
            'vendors.create',
            'vendors.edit',
            'vendors.delete',

            // 倉庫管理
            'warehouses.view',
            'warehouses.create',
            'warehouses.edit',
            'warehouses.delete',

            // 使用者管理
            'users.view',
            'users.create',
            'users.edit',
            'users.delete',

            // 角色權限管理
            'roles.view',
            'roles.create',
            'roles.edit',
            'roles.delete',
        ];

        foreach ($permissions as $permission) {
            Permission::create(['name' => $permission]);
        }

        // 建立角色
        $superAdmin = Role::create(['name' => 'super-admin', 'display_name' => '系統管理員']);
        $admin = Role::create(['name' => 'admin', 'display_name' => '一般管理員']);
        $warehouseManager = Role::create(['name' => 'warehouse-manager', 'display_name' => '倉庫管理員']);
        $purchaser = Role::create(['name' => 'purchaser', 'display_name' => '採購人員']);
        $viewer = Role::create(['name' => 'viewer', 'display_name' => '檢視人員']);

        // 給角色分配權限
        // super-admin 擁有所有權限
        $superAdmin->givePermissionTo(Permission::all());

        // admin 擁有大部分權限（除了角色管理）
        $admin->givePermissionTo([
            'products.view', 'products.create', 'products.edit', 'products.delete',
            'purchase_orders.view', 'purchase_orders.create', 'purchase_orders.edit', 
            'purchase_orders.delete', 'purchase_orders.publish',
            'inventory.view', 'inventory.adjust', 'inventory.transfer',
            'vendors.view', 'vendors.create', 'vendors.edit', 'vendors.delete',
            'warehouses.view', 'warehouses.create', 'warehouses.edit', 'warehouses.delete',
            'users.view', 'users.create', 'users.edit',
        ]);

        // warehouse-manager 管理庫存與倉庫
        $warehouseManager->givePermissionTo([
            'products.view',
            'inventory.view', 'inventory.adjust', 'inventory.transfer',
            'warehouses.view', 'warehouses.create', 'warehouses.edit',
        ]);

        // purchaser 管理採購與供應商
        $purchaser->givePermissionTo([
            'products.view',
            'purchase_orders.view', 'purchase_orders.create', 'purchase_orders.edit',
            'vendors.view', 'vendors.create', 'vendors.edit',
            'inventory.view',
        ]);

        // viewer 僅能查看
        $viewer->givePermissionTo([
            'products.view',
            'purchase_orders.view',
            'inventory.view',
            'vendors.view',
            'warehouses.view',
        ]);

        // 將現有使用者設為 super-admin（如果存在的話）
        $firstUser = User::first();
        if ($firstUser) {
            $firstUser->assignRole('super-admin');
            $this->command->info("已將使用者 {$firstUser->name} 設為 super-admin");
        }
    }
}