<?php

namespace app\controller;

use app\service\ApprovalService;
use app\model\ApprovalOrder;
use Webman\Http\Request;
use Webman\Http\Response;

class ApprovalController extends BaseController
{
    private ApprovalService $service;

    public function __construct()
    {
        $this->service = new ApprovalService();
    }

    /**
     * 获取路由参数
     */
    private function getRouteParam(Request $request, string $name, $default = null)
    {
        $route = $request->route;
        if ($route && method_exists($route, 'param')) {
            return $route->param($name) ?? $default;
        }
        return $default;
    }

    /**
     * 获取审批列表
     */
    public function list(Request $request): Response
    {
        $userId = $this->getUserId($request);
        $type = $request->get('type', 'my');
        $page = (int) $request->get('page', 1);
        $pageSize = (int) $request->get('page_size', 20);

        try {
            $result = $this->service->getList($userId, $type, $page, $pageSize);

            // 使用 json() 全局函数返回 JSON
            return json([
                'code' => 0,
                'message' => 'success',
                'data' => $result,
            ]);
        } catch (\Exception $e) {
            error_log("❌ Error in list controller: " . $e->getMessage() . "\n" . $e->getTraceAsString());
            return $this->error($e->getMessage());
        }
    }

    /**
     * 获取审批详情
     */
    public function detail(Request $request): Response
    {
        $id = (int) $this->getRouteParam($request, 'id');

        $approval = ApprovalOrder::with(['flow.nodes', 'applicant', 'records.approver'])
            ->findOrFail($id);

        return $this->success($approval);
    }

    /**
     * 审批通过
     */
    public function approve(Request $request): Response
    {
        $userId = $this->getUserId($request);
        $id = (int) $this->getRouteParam($request, 'id');
        $data = $request->post();
        $data = $data ?? [];
        $comment = $data['comment'] ?? null;

        try {
            $approval = $this->service->approve($id, $userId, $comment);
            return $this->success($approval, '已通过');
        } catch (\Exception $e) {
            return $this->error($e->getMessage());
        }
    }

    /**
     * 审批拒绝
     */
    public function reject(Request $request): Response
    {
        $userId = $this->getUserId($request);
        $id = (int) $this->getRouteParam($request, 'id');
        $data = $request->post();
        $data = $data ?? [];
        $comment = $data['comment'] ?? null;

        try {
            $approval = $this->service->reject($id, $userId, $comment);
            return $this->success($approval, '已拒绝');
        } catch (\Exception $e) {
            return $this->error($e->getMessage());
        }
    }

    /**
     * 撤销申请
     */
    public function cancel(Request $request): Response
    {
        $userId = $this->getUserId($request);
        $id = (int) $this->getRouteParam($request, 'id');

        try {
            $approval = $this->service->cancel($id, $userId);
            return $this->success($approval, '已撤销');
        } catch (\Exception $e) {
            return $this->error($e->getMessage());
        }
    }
}