<?php

namespace App\Http\Controllers\Landlord;

use App\Http\Controllers\Controller;
use App\Models\Tenant;
use Illuminate\Http\Request;
use Illuminate\Validation\Rule;
use Inertia\Inertia;

class TenantController extends Controller
{
    /**
     * 顯示租戶列表
     */
    public function index()
    {
        $tenants = Tenant::with('domains')->get()->map(function ($tenant) {
            return [
                'id' => $tenant->id,
                'name' => $tenant->name ?? $tenant->id,
                'email' => $tenant->email ?? null,
                'is_active' => $tenant->is_active ?? true,
                'created_at' => $tenant->created_at->format('Y-m-d H:i'),
                'domains' => $tenant->domains->pluck('domain')->toArray(),
            ];
        });

        return Inertia::render('Landlord/Tenant/Index', [
            'tenants' => $tenants,
        ]);
    }

    /**
     * 顯示新增租戶表單
     */
    public function create()
    {
        return Inertia::render('Landlord/Tenant/Create');
    }

    /**
     * 儲存新租戶
     */
    public function store(Request $request)
    {
        $validated = $request->validate([
            'id' => ['required', 'string', 'max:50', 'alpha_dash', Rule::unique('tenants', 'id')],
            'name' => ['required', 'string', 'max:100'],
            'email' => ['nullable', 'email', 'max:100'],
            'domain' => ['nullable', 'string', 'max:100'],
        ]);

        $tenant = Tenant::create([
            'id' => $validated['id'],
            'name' => $validated['name'],
            'email' => $validated['email'] ?? null,
            'is_active' => true,
        ]);

        // 綁定網域（如果沒有輸入，使用預設網域）
        $defaultDomain = env('TENANT_DEFAULT_DOMAIN', 'star-erp.test');
        $domain = !empty($validated['domain']) 
            ? $validated['domain'] 
            : $validated['id'] . '.' . $defaultDomain;
        $tenant->domains()->create(['domain' => $domain]);

        return redirect()->route('landlord.tenants.index')
            ->with('success', "租戶 {$validated['name']} 建立成功！");
    }

    /**
     * 顯示單一租戶詳情
     */
    public function show(string $id)
    {
        $tenant = Tenant::with('domains')->findOrFail($id);

        return Inertia::render('Landlord/Tenant/Show', [
            'tenant' => [
                'id' => $tenant->id,
                'name' => $tenant->name ?? $tenant->id,
                'email' => $tenant->email ?? null,
                'is_active' => $tenant->is_active ?? true,
                'created_at' => $tenant->created_at->format('Y-m-d H:i'),
                'updated_at' => $tenant->updated_at->format('Y-m-d H:i'),
                'domains' => $tenant->domains->map(fn($d) => [
                    'id' => $d->id,
                    'domain' => $d->domain,
                ])->toArray(),
            ],
        ]);
    }

    /**
     * 顯示編輯租戶表單
     */
    public function edit(string $id)
    {
        $tenant = Tenant::findOrFail($id);

        return Inertia::render('Landlord/Tenant/Edit', [
            'tenant' => [
                'id' => $tenant->id,
                'name' => $tenant->name ?? $tenant->id,
                'email' => $tenant->email ?? null,
                'is_active' => $tenant->is_active ?? true,
            ],
        ]);
    }

    /**
     * 更新租戶
     */
    public function update(Request $request, string $id)
    {
        $tenant = Tenant::findOrFail($id);

        $validated = $request->validate([
            'name' => ['required', 'string', 'max:100'],
            'email' => ['nullable', 'email', 'max:100'],
            'is_active' => ['boolean'],
        ]);

        $tenant->update($validated);

        return redirect()->route('landlord.tenants.index')
            ->with('success', "租戶 {$validated['name']} 更新成功！");
    }

    /**
     * 刪除租戶
     */
    public function destroy(string $id)
    {
        $tenant = Tenant::findOrFail($id);
        $name = $tenant->name ?? $id;
        
        $tenant->delete();

        return redirect()->route('landlord.tenants.index')
            ->with('success', "租戶 {$name} 已刪除！");
    }

    /**
     * 新增域名到租戶
     */
    public function addDomain(Request $request, string $id)
    {
        $tenant = Tenant::findOrFail($id);

        $validated = $request->validate([
            'domain' => ['required', 'string', 'max:100', Rule::unique('domains', 'domain')],
        ]);

        $tenant->domains()->create(['domain' => $validated['domain']]);

        return back()->with('success', "域名 {$validated['domain']} 已綁定！");
    }

    /**
     * 移除租戶的域名
     */
    public function removeDomain(string $id, int $domainId)
    {
        $tenant = Tenant::findOrFail($id);
        $domain = $tenant->domains()->findOrFail($domainId);
        $domainName = $domain->domain;

        $domain->delete();

        return back()->with('success', "域名 {$domainName} 已移除！");
    }
}