<?php

namespace App\Http\Controllers\Api\V1\Admin;

use App\Http\Controllers\Controller;
use App\Models\Deployment;
use App\Models\Order;
use App\Models\Plan;
use App\Models\PlanEntitlement;
use App\Models\ServiceTicket;
use App\Services\MembershipService;
use App\Support\Presenter;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;
use Illuminate\Validation\Rule;

class CommerceController extends Controller
{
    public function __construct(private readonly MembershipService $membership) {}

    public function plans()
    {
        return $this->ok(Plan::query()->with('entitlements')->orderByDesc('sort')->get()->map(fn (Plan $plan) => Presenter::plan($plan)));
    }

    public function storePlan(Request $request)
    {
        $plan = DB::transaction(function () use ($request) {
            $plan = Plan::query()->create($this->planData($request));
            $this->syncEntitlements($plan, $request);

            return $plan->load('entitlements');
        });
        $this->audit($request->user(), 'plan.create', $plan, '新建方案 '.$plan->name);

        return $this->ok(Presenter::plan($plan));
    }

    public function updatePlan(Request $request, Plan $plan)
    {
        DB::transaction(function () use ($request, $plan) {
            $plan->update($this->planData($request, $plan->id));
            $this->syncEntitlements($plan, $request);
        });
        $this->audit($request->user(), 'plan.update', $plan, '更新方案 '.$plan->name);

        return $this->ok(Presenter::plan($plan->load('entitlements')));
    }

    public function orders(Request $request)
    {
        $query = Order::query()->with('user:id,nickname')->latest();
        if ($status = $request->query('status')) {
            $query->where('status', $status);
        }

        return $this->ok($query->limit(100)->get()->map(fn (Order $order) => [
            'id' => $order->id,
            'order_no' => $order->order_no,
            'title' => $order->title,
            'type' => $order->type,
            'status' => $order->status,
            'amount_cents' => $order->amount_cents,
            'user' => $order->user?->nickname,
            'remark' => $order->remark,
            'created_at' => $order->created_at?->toIso8601String(),
        ]));
    }

    public function confirmOrder(Request $request, Order $order)
    {
        $data = $request->validate(['remark' => ['nullable', 'string', 'max:255']]);
        if (isset($data['remark'])) {
            $order->remark = $data['remark'];
            $order->save();
        }
        $this->membership->confirmOrder($order->fresh());
        $this->audit($request->user(), 'order.confirm', $order, '确认收款 '.$order->order_no);

        return $this->ok(null, '已确认收款');
    }

    public function closeOrder(Request $request, Order $order)
    {
        if ($order->status !== 'pending') {
            return response()->json(['message' => '只能关闭待支付订单', 'code' => 'invalid_status'], 422);
        }
        $order->update(['status' => 'closed']);
        $this->audit($request->user(), 'order.close', $order, '关闭订单 '.$order->order_no);

        return $this->ok(null, '订单已关闭');
    }

    public function tickets()
    {
        return $this->ok(ServiceTicket::query()->with('user:id,nickname', 'tool:id,name')->latest()->limit(100)->get());
    }

    public function updateTicket(Request $request, ServiceTicket $ticket)
    {
        $data = $request->validate([
            'status' => ['required', 'in:pending,quoted,doing,checking,done,closed'],
            'quote_cents' => ['nullable', 'integer', 'min:0'],
            'delivery_note' => ['nullable', 'string'],
        ]);
        $ticket->update($data);
        $this->audit($request->user(), 'ticket.update', $ticket, '更新工单 #'.$ticket->id);

        return $this->ok($ticket);
    }

    public function deployments()
    {
        return $this->ok(Deployment::query()->with('user:id,nickname', 'tool:id,name')->latest()->limit(100)->get());
    }

    public function storeDeployment(Request $request)
    {
        $data = $this->deploymentData($request);
        $deployment = Deployment::query()->create($data);
        $this->audit($request->user(), 'deployment.create', $deployment, '新建云端实例 #'.$deployment->id);

        return $this->ok($deployment);
    }

    public function updateDeployment(Request $request, Deployment $deployment)
    {
        $deployment->update($this->deploymentData($request));
        $this->audit($request->user(), 'deployment.update', $deployment, '更新云端实例 #'.$deployment->id);

        return $this->ok($deployment);
    }

    private function planData(Request $request, ?int $id = null): array
    {
        return $request->validate([
            'code' => ['required', 'regex:/^[a-z0-9]+(?:-[a-z0-9]+)*$/', Rule::unique('plans', 'code')->ignore($id)],
            'name' => ['required', 'string', 'max:80'],
            'price_cents' => ['required', 'integer', 'min:0'],
            'period' => ['required', 'in:month,year,lifetime'],
            'description' => ['nullable', 'string', 'max:255'],
            'sort' => ['nullable', 'integer'],
            'status' => ['required', 'in:published,hidden'],
        ]);
    }

    private function syncEntitlements(Plan $plan, Request $request): void
    {
        $items = $request->validate([
            'entitlements' => ['array'],
            'entitlements.*.key' => ['required', 'string', 'max:120'],
            'entitlements.*.value' => ['required', 'string', 'max:120'],
        ])['entitlements'] ?? [];
        $plan->entitlements()->delete();
        foreach ($items as $item) {
            PlanEntitlement::query()->create([
                'plan_id' => $plan->id,
                'entitlement_key' => $item['key'],
                'entitlement_value' => $item['value'],
            ]);
        }
    }

    private function deploymentData(Request $request): array
    {
        return $request->validate([
            'user_id' => ['required', 'integer', 'exists:users,id'],
            'tool_id' => ['nullable', 'integer', 'exists:tools,id'],
            'spec' => ['nullable', 'string', 'max:120'],
            'access_url' => ['nullable', 'string', 'max:500'],
            'status' => ['required', 'in:pending,running,paused,released'],
            'ends_at' => ['nullable', 'date'],
            'remark' => ['nullable', 'string', 'max:255'],
        ]);
    }
}