<?php

namespace App\Http\Controllers\Client\Doctor;

use App\Enums\ShiftDayEnum;
use App\Enums\UserEnum;
use App\Http\Controllers\Controller;
use App\Http\Resources\Client\ShiftResource;
use App\Models\Shift;
use App\Services\Shift\ShiftScheduleService;
use Illuminate\Support\Facades\Auth;
use Inertia\Inertia;

class ShiftController extends Controller
{
    protected ShiftScheduleService $shiftScheduleService;

    public function __construct(ShiftScheduleService $shiftScheduleService)
    {
        $this->shiftScheduleService = $shiftScheduleService;
    }

    public function index()
    {
        $this->ensureDoctor();

        $myShifts = Shift::where('user_id', Auth::id())->get();

        $openShifts = Shift::active()
            ->open()
            ->where(function ($query) {
                $query->whereNull('date')
                    ->orWhereDate('date', '>=', now()->toDateString());
            })
            ->get();

        return Inertia::client('Dashboard/Shifts/Index', [
            'myShifts' => ShiftResource::collection($this->sortSchedule($myShifts)),
            'openShifts' => ShiftResource::collection($this->sortSchedule($openShifts)),
        ]);
    }

    public function update(Shift $shift)
    {
        $this->ensureDoctor();

        $this->shiftScheduleService->claim($shift->id, Auth::user());

        return response(null, 200);
    }

    public function destroy(Shift $shift)
    {
        $this->ensureDoctor();

        $this->shiftScheduleService->release($shift, Auth::user());

        return response(null, 200);
    }

    protected function ensureDoctor(): void
    {
        abort_unless(Auth::user()->level === UserEnum::Doctor->value, 403);
    }

    protected function sortSchedule($shifts)
    {
        $dayOrder = array_flip(ShiftDayEnum::values());

        return $shifts
            ->sortBy([
                fn ($a, $b) => strcmp($a->date?->toDateString() ?? '', $b->date?->toDateString() ?? ''),
                fn ($a, $b) => ($dayOrder[$a->day_of_week] ?? 0) <=> ($dayOrder[$b->day_of_week] ?? 0),
                fn ($a, $b) => strcmp($a->start_time, $b->start_time),
            ])
            ->values();
    }
}