<?php

namespace App\Http\Controllers\Api;

use App\Admin\Services\WorkFlowService;
use App\Enums\CheckStatus;
use App\Exceptions\RuntimeException;
use App\Http\Resources\ReimbursementResource;
use App\Http\Resources\WorkflowLogResource;
use App\Models\Keyword;
use App\Models\Reimbursement;
use App\Models\WorkflowCheck;
use Illuminate\Http\Request;
use Illuminate\Http\Response;
use Illuminate\Support\Facades\DB;
use Illuminate\Validation\Rule;
use Throwable;

/**
 * 报销管理
 */
class ReimbursementController extends Controller
{
    public function index(Request $request)
    {
        /** @var \App\Models\Employee */
        $user = $request->user();

        $reimbursements = $user->reimbursements()
            ->with(['type', 'workflow'])
            ->filter($request->input())
            ->orderByDesc(WorkflowCheck::checkStatusSortBuilder(new Reimbursement()))
            ->orderBy('id', 'desc')
            ->paginate($request->input('per_page', 20));

        return ReimbursementResource::collection($reimbursements);
    }

    public function store(Request $request, WorkFlowService $workFlowService): ReimbursementResource
    {
        $validated = $request->validate(
            rules: [
                'reimbursement_type_id' => ['bail', 'required', Rule::exists(Keyword::class, 'key')],
                'expense' => ['bail', 'required', 'min:0', 'max:99999999', 'decimal:0,2'],
                'reason' => ['bail', 'required', 'max:255'],
                'photos' => ['bail', 'required', 'array'],
            ],
            attributes: [
                'reimbursement_type_id' => '报销分类',
                'expense' => '报销金额',
                'reason' => '报销原因',
                'photos' => '报销凭证',
            ],
        );

        /** @var \App\Models\Employee */
        $user = $request->user();

        try {
            DB::beginTransaction();

            $validated['store_id'] = $user->store_id;
            /** @var \App\Models\Reimbursement */
            $reimbursement = $user->reimbursements()->create($validated);

            $workFlowService->apply($reimbursement->workflow, $user);

            DB::commit();
        } catch (Throwable $th) {
            DB::rollBack();

            throw tap($th, fn ($th) => report($th));
        }

        return ReimbursementResource::make(
            $reimbursement->load(['type', 'workflow']),
        );
    }

    public function show($id, Request $request): ReimbursementResource
    {
        $reimbursement = Reimbursement::with(['type', 'workflow', 'employee', 'store'])->findOrFail($id);

        return ReimbursementResource::make($reimbursement);
    }

    public function update($id, Request $request, WorkFlowService $workFlowService): ReimbursementResource
    {
        $validated = $request->validate(
            rules: [
                'reimbursement_type_id' => ['bail', 'required', Rule::exists(Keyword::class, 'key')],
                'expense' => ['bail', 'required', 'numeric', 'min:0'],
                'reason' => ['bail', 'required', 'max:255'],
                'photos' => ['bail', 'required', 'array'],
            ],
            attributes: [
                'reimbursement_type_id' => '报销分类',
                'expense' => '报销金额',
                'reason' => '报销原因',
                'photos' => '报销凭证',
            ],
        );

        /** @var \App\Models\Employee */
        $user = $request->user();

        /** @var \App\Models\Reimbursement */
        $reimbursement = $user->reimbursements()->find($id);

        if (is_null($reimbursement)) {
            throw new RuntimeException('报销记录未找到');
        }

        if (! $reimbursement->canUpdate()) {
            throw new RuntimeException('['.$reimbursement->workflow->check_status->text().']报销记录不可修改');
        }

        try {
            DB::beginTransaction();

            $reimbursement->update($validated);

            $workFlowService->apply($reimbursement->workflow, $user);

            DB::commit();
        } catch (Throwable $th) {
            DB::rollBack();

            throw tap($th, fn ($th) => report($th));
        }

        return ReimbursementResource::make(
            $reimbursement->load(['type', 'workflow']),
        );
    }

    public function destroy($id, Request $request)
    {
        /** @var \App\Models\Employee */
        $user = $request->user();

        /** @var \App\Models\Reimbursement */
        $reimbursement = $user->reimbursements()->find($id);

        if (is_null($reimbursement)) {
            throw new RuntimeException('报销记录未找到');
        }

        if (! $reimbursement->canDelete()) {
            throw new RuntimeException('['.$reimbursement->workflow->check_status->text().']报销记录不可删除');
        }

        $reimbursement->delete();

        return response()->noContent();
    }

    public function checkList(Request $request)
    {
        $user = $request->user();
        $query = Reimbursement::with(['workflow', 'type', 'store'])
            ->whereHas('workflow', fn ($q) => $q->where('check_status', CheckStatus::Processing))
            ->whereHas('workflow.logs', fn ($q) => $q->own($user))->orderBy('created_at', 'desc');

        $list = $query->paginate($request->input('per_page'));

        return ReimbursementResource::collection($list);
    }

    public function check($id, Request $request, WorkFlowService $workFlowService)
    {
        $request->validate([
            'status' => ['required'],
            'remarks' => [Rule::requiredIf(fn () => ! $request->input('status'))],
        ], [
            'remarks.required_if' => '未通过原因必填',
        ]);
        $info = Reimbursement::findOrFail($id);
        $user = $request->user();
        try {
            DB::beginTransaction();
            $log = $info->workflow->logs()->where('check_status', CheckStatus::Processing)->first();
            if (! $log) {
                throw new RuntimeException('审核已经完成');
            }
            if (! $workFlowService->check($user, $log, (bool) $request->input('status'), ['remarks' => $request->input('remarks')])) {
                throw new RuntimeException($workFlowService->getError());
            }

            DB::commit();

            return response('', Response::HTTP_OK);
        } catch (\Exception $e) {
            DB::rollBack();
            throw new RuntimeException($e->getMessage());
        }
    }

    public function logs($id)
    {
        $info = Reimbursement::findOrFail($id);
        $logs = $info->workflow->logs()->sort()->get();

        return WorkflowLogResource::collection($logs);
    }
}