<?php

namespace App\Http\Controllers;

use App\Http\Controllers\Concerns\ResolvesActiveUnit;
use App\Models\UnitFinancial;
use App\Services\StudentContractService;
use App\Http\Requests\StudentContractRequest;
use App\Http\Resources\StudentContractResource;
use App\Http\Resources\StudentContractInstallmentResource;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;

class StudentContractController extends Controller
{
    use ResolvesActiveUnit;

    public function __construct(
        protected StudentContractService $service,
    ) {}

    public function franchisorSummary(): JsonResponse
    {
        $unitIds = array_filter((array) request()->input('unit_ids', []));
        return $this->successResponse(payload: $this->service->getFranchisorSummary($unitIds));
    }

    public function franchisorFrozen(): JsonResponse
    {
        $unitIds = array_filter((array) request()->input('unit_ids', []));
        $items   = $this->service->getFranchisorByStatus('frozen', $unitIds);
        return $this->successResponse(payload: StudentContractResource::collection($items));
    }

    public function franchisorCancelled(): JsonResponse
    {
        $unitIds = array_filter((array) request()->input('unit_ids', []));
        $items   = $this->service->getFranchisorByStatus('cancelled', $unitIds);
        return $this->successResponse(payload: StudentContractResource::collection($items));
    }

    public function index(): JsonResponse
    {
        $unitId    = $this->activeUnitId();
        $studentId = request()->integer('student_id') ?: null;
        $items     = $this->service->getAll($unitId, $studentId);
        return $this->successResponse(payload: StudentContractResource::collection($items));
    }

    public function store(StudentContractRequest $request): JsonResponse
    {
        $unitId = $this->activeUnitId();
        $data   = array_merge($request->validated(), ['unit_id' => $unitId]);
        $item   = $this->service->create($data);
        return $this->successResponse(payload: new StudentContractResource($item), message: __('messages.created'), code: 201);
    }

    public function show(int $id): JsonResponse
    {
        $item = $this->service->findById($id);
        return $this->successResponse(payload: new StudentContractResource($item));
    }

    public function update(StudentContractRequest $request, int $id): JsonResponse
    {
        $item = $this->service->update($id, $request->validated());
        return $this->successResponse(payload: new StudentContractResource($item), message: __('messages.updated'));
    }

    public function attachFile(Request $request, int $id): JsonResponse
    {
        $request->validate(['file' => 'required|file|mimes:jpeg,png,gif,pdf,mp4,mov,avi|max:20480']);
        $item = $this->service->attachFile($id, $request->file('file'));
        return $this->successResponse(payload: new StudentContractResource($item), message: __('messages.updated'));
    }

    public function installments(int $id): JsonResponse
    {
        $items = $this->service->getInstallments($id);
        return $this->successResponse(payload: StudentContractInstallmentResource::collection($items));
    }

    public function freeze(int $id): JsonResponse
    {
        $months = request()->integer('months', 0);

        if ($months < 1) {
            return $this->errorResponse(message: 'Informe o tempo de trancamento em meses.', code: 422);
        }

        $contract = $this->service->findById($id);
        if (!$contract) {
            return $this->errorResponse(message: 'Contrato não encontrado.', code: 404);
        }

        $financial = UnitFinancial::where('unit_id', $contract->unit_id)->first();
        if ($financial && $financial->max_freeze_count !== null && $months > $financial->max_freeze_count) {
            return $this->errorResponse(
                message: "Não é possível trancar por mais de {$financial->max_freeze_count} mês(es).",
                code: 422,
            );
        }

        $item = $this->service->freeze($id, $months);
        return $this->successResponse(payload: new StudentContractResource($item), message: __('messages.updated'));
    }

    public function cancel(int $id): JsonResponse
    {
        $item = $this->service->cancel($id);
        return $this->successResponse(payload: new StudentContractResource($item), message: __('messages.updated'));
    }

    public function reactivate(int $id): JsonResponse
    {
        $item = $this->service->reactivate($id);
        return $this->successResponse(payload: new StudentContractResource($item), message: __('messages.updated'));
    }

    public function destroy(int $id): JsonResponse
    {
        $this->service->delete($id);
        return $this->successResponse(message: __('messages.deleted'), code: 204);
    }
}