<?php

namespace App\Services\Client;

use App\Enums\ProjectStatus;
use App\Enums\ProjectType;
use App\Models\AgentInfo;
use App\Models\CoachUser;
use App\Models\Project;
use App\Models\ProjectCate;
use Illuminate\Support\Facades\Log;

class ProjectService
{
    /**
     * 获取项目列表
     */
    public function getProjectList($areaCode, $projectCateId = null, $type = ProjectType::VISIT)
    {
        try {

            // 获取项目分类
            $projectCate = ProjectCate::find($projectCateId);

            abort_if(! $projectCate, 404, '项目分类不存在');
            abort_if($projectCate->state != ProjectStatus::OPEN->value(), 404, '项目分类状态异常');

            // 根据区域代码获取代理商
            $agent = $this->findAvailableAgent($areaCode);

            // 获取项目列表
            if ($agent) {
                $agentCate = $agent->cates()->where('project_cate_id', $projectCate->id)->first();
                abort_if(! $agentCate || ($agentCate->state != ProjectStatus::OPEN->value()), 404, '当前区域未开通服务');

                if (in_array($type, [ProjectType::VISIT->value()])) {
                    $projects = $agentCate->projects()
                        ->where('state', ProjectStatus::OPEN->value())
                        ->with('basicInfo')
                        ->whereHas('basicInfo', fn ($q) => $q->where('type', [ProjectType::VISIT->value()]))
                        ->paginate(10);
                    // 遍历项目，替换成代理商设置

                }
                if (in_array($type, [ProjectType::OVERTIME->value()])) {

                    $projects = $agentCate->projects()
                        ->where('state', ProjectStatus::OPEN->value())
                        ->with('basicInfo')
                        ->whereHas('basicInfo', fn ($q) => $q->whereIn('type', [ProjectType::VISIT->value(), ProjectType::OVERTIME->value()]))
                        ->paginate(10);
                    // 遍历项目，替换成代理商设置
                }
            } else {
                if (in_array($type, [ProjectType::VISIT->value()])) {
                    $projects = $projectCate?->projects()
                        ->whereIn('type', [ProjectType::VISIT->value()])
                        ->where('state', ProjectStatus::OPEN->value())
                        ->paginate(10);
                }
                if (in_array($type, [ProjectType::OVERTIME->value()])) {
                    $projects = $projectCate?->projects()
                        ->whereIn('type', [ProjectType::VISIT->value(), ProjectType::OVERTIME->value()])
                        ->where('state', ProjectStatus::OPEN->value())
                        ->paginate(10);
                }
            }

            return $projects;

        } catch (\Exception $e) {
            Log::error('获取项目列表失败', [
                'error' => $e->getMessage(),
                'areaCode' => $areaCode,
                'projectCateId' => $projectCateId,
                'type' => $type,
            ]);
            throw $e;
        }
    }

    /**
     * 如果代理商存在，则返回代理商项目，否则返回系统项目
     *
     * @param  int  $projectId  项目ID
     * @param  string  $areaCode  区域代码
     * @return Project 项目模型
     *
     * @throws \Illuminate\Http\Exceptions\HttpResponseException 项目不存在时抛出404异常
     */
    public function getProjectDetail($projectId, $areaCode)
    {

        // 查询系统项目
        $project = Project::where('state', ProjectStatus::OPEN->value())->find($projectId);
        abort_if(! $project, 404, '项目不存在');

        // 根据区域代码获取代理商
        $agent = $this->findAvailableAgent($areaCode);
        if ($agent) {
            // 查询代理商项目
            $agentProject = $agent->projects()->where('project_id', $projectId)->first();
            // 遍历代理商项目，替换系统项目
            if ($agentProject) {
                // 合并代理商项目的金额、时长、距离到系统项目
                $project->price = $agentProject->price ?? $project->price;  // 金额
                $project->duration = $agentProject->duration ?? $project->duration; // 时长
                $project->distance = $agentProject->distance ?? $project->distance; // 距离
            }
            $project->agent_id = $agent->id;
        }

        return $project;
    }

    /**
     * 获取技师开通的项目列表
     */
    public function getCoachProjectList($coachId, $areaCode, $projectCateId)
    {
        try {
            // 查询技师信息
            $coach = CoachUser::where('id', $coachId)
                ->where('state', 'enable')
                ->with(['info', 'qual', 'real'])
                ->first();

            abort_if(! $coach, 404, '技师不存在');
            abort_if(! $coach->info, 404, '技师信息不存在');
            abort_if($coach->info->state !== 'approved', 404, '技师未通过审核');
            abort_if(! $coach->qual, 404, '技师资格证书不存在');
            abort_if($coach->qual->state !== 'approved', 404, '技师资格证书未通过审核');
            abort_if(! $coach->real, 404, '技师实名认证记录不存在');
            abort_if($coach->real->state !== 'approved', 404, '技师实名认证未通过审核');

            // 获取技师开通的项目ID列表
            $projectIds = $coach->projects()
                ->where('state', 'enable')
                ->pluck('project_id');

            // 根据区域代码获取代理商
            $agent = $this->findAvailableAgent($areaCode);

            if ($agent) {
                $agentCate = $agent->cates()
                    ->where('project_cate_id', $projectCateId)
                    ->first();

                $projectIds = $agentCate->projects()
                    ->whereIn('project_id', $projectIds)
                    ->pluck('project_id');
            }

            return $coach->projects()
                ->with('basicInfo')
                ->whereIn('project_id', $projectIds)
                ->get();

        } catch (\Exception $e) {
            Log::error('获取技师项目列表失败', [
                'error' => $e->getMessage(),
                'coachId' => $coachId,
                'areaCode' => $areaCode,
                'projectCateId' => $projectCateId,
            ]);
            throw $e;
        }
    }

    /**
     * 递归查找可用的代理商
     *
     * @param  string  $areaCode  区域代码
     * @return Agent|null
     */
    private function findAvailableAgent($areaCode)
    {
        // 先查找当前区域的代理商
        // 区域代码不足6位，右边补0
        $fullAreaCode = str_pad($areaCode, 6, '0', STR_PAD_RIGHT);
        $agent = AgentInfo::where('area_code', $fullAreaCode)
            ->where('state', 'enable')
            ->first();

        if ($agent) {
            return $agent;
        }

        // 如果找不到，且区域代码长度大于2，则向上查找
        if (strlen($areaCode) > 2) {
            // 去掉最后两位，获取上级区域代码
            $parentAreaCode = substr($areaCode, 0, -2);

            return $this->findAvailableAgent($parentAreaCode);
        }

        return null;
    }
}