<?php

namespace App\Http\Controllers\Supervisor\Concerns;

use App\Models\Establishment;
use App\Models\Supervisor;
use Illuminate\Database\Eloquent\Builder;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;

trait ScopesSupervisorResources
{
    protected function supervisor(): Supervisor
    {
        /** @var Supervisor $supervisor */
        $supervisor = Auth::guard('supervisor')->user();

        return $supervisor;
    }

    protected function supervisorListPerPage(Request $request): int
    {
        $perPage = $request->integer('per_page', 10);

        return in_array($perPage, $this->supervisorPerPageOptions(), true) ? $perPage : 10;
    }

    /**
     * @return array<int, int>
     */
    protected function supervisorPerPageOptions(): array
    {
        return [10, 25, 50];
    }

    protected function scopeEstablishmentQuery(Builder $query, string $establishmentColumn = 'establishment_id'): Builder
    {
        $supervisor = $this->supervisor();

        $query->whereHas('establishment', function (Builder $query) use ($supervisor) {
            $query->where('organization_id', $supervisor->organization_id);

            if ($supervisor->establishment_id !== null) {
                $query->where('id', $supervisor->establishment_id);
            }
        });

        if ($supervisor->establishment_id !== null && $establishmentColumn !== '') {
            $query->where($establishmentColumn, $supervisor->establishment_id);
        }

        return $query;
    }

    protected function scopeMachineRelationQuery(Builder $query): Builder
    {
        $supervisor = $this->supervisor();

        return $query->whereHas('machine.establishment', function (Builder $query) use ($supervisor) {
            $query->where('organization_id', $supervisor->organization_id);

            if ($supervisor->establishment_id !== null) {
                $query->where('id', $supervisor->establishment_id);
            }
        });
    }

    protected function applyEstablishmentFilter(Request $request, Builder $query, string $mode = 'direct'): void
    {
        if (! $request->filled('establishment_id')) {
            return;
        }

        $establishmentId = (int) $request->input('establishment_id');
        $this->assertEstablishmentAccessible($establishmentId);

        if ($mode === 'machine') {
            $query->whereHas('machine', fn (Builder $query) => $query->where('establishment_id', $establishmentId));
        } else {
            $query->where('establishment_id', $establishmentId);
        }
    }

    protected function applyUserSearchFilter(Request $request, Builder $query): void
    {
        if (! $request->filled('user')) {
            return;
        }

        $search = $request->string('user');

        $query->whereHas('user', function (Builder $query) use ($search) {
            $query->where(function (Builder $query) use ($search) {
                $query->where('first_name', 'like', "%{$search}%")
                    ->orWhere('last_name', 'like', "%{$search}%")
                    ->orWhere('email', 'like', "%{$search}%");
            });
        });
    }

    protected function assertEstablishmentAccessible(int $establishmentId): void
    {
        $supervisor = $this->supervisor();

        $exists = Establishment::query()
            ->where('id', $establishmentId)
            ->where('organization_id', $supervisor->organization_id)
            ->when($supervisor->establishment_id, fn ($query) => $query->where('id', $supervisor->establishment_id))
            ->exists();

        abort_unless($exists, 403);
    }

    /**
     * @return array<int, array{id: int, name: string}>
     */
    protected function establishmentOptions(): array
    {
        $supervisor = $this->supervisor();

        return Establishment::query()
            ->where('organization_id', $supervisor->organization_id)
            ->when($supervisor->establishment_id, fn ($query) => $query->where('id', $supervisor->establishment_id))
            ->orderBy('name')
            ->get(['id', 'name'])
            ->map(fn (Establishment $establishment) => [
                'id' => $establishment->id,
                'name' => $establishment->name,
            ])
            ->all();
    }

    /**
     * @param  array<string, string|callable(Builder, string): void>  $sortableColumns
     */
    protected function applySort(
        Request $request,
        Builder $query,
        array $sortableColumns,
        string $defaultColumn,
        string $defaultDirection = 'asc',
    ): void {
        $sort = $request->string('sort')->toString();
        $direction = strtolower($request->string('direction')->toString()) === 'desc' ? 'desc' : 'asc';

        if ($sort === '' || ! array_key_exists($sort, $sortableColumns)) {
            $sort = $defaultColumn;
            $direction = $defaultDirection;
        }

        $handler = $sortableColumns[$sort];

        if (is_callable($handler)) {
            $handler($query, $direction);

            return;
        }

        $query->orderBy($handler, $direction);
    }

    protected function sortByRelatedUser(Builder $query, string $parentTable, string $foreignKey, string $direction): void
    {
        $query->leftJoin('users', "{$parentTable}.{$foreignKey}", '=', 'users.id')
            ->orderBy('users.last_name', $direction)
            ->orderBy('users.first_name', $direction)
            ->select("{$parentTable}.*");
    }

    protected function sortByRelatedMachine(Builder $query, string $parentTable, string $direction): void
    {
        $query->leftJoin('machines', "{$parentTable}.machine_id", '=', 'machines.id')
            ->orderBy('machines.name', $direction)
            ->select("{$parentTable}.*");
    }

    protected function sortByRelatedEstablishment(
        Builder $query,
        string $parentTable,
        string $foreignKeyColumn,
        string $direction,
    ): void {
        $query->leftJoin('establishments', "{$parentTable}.{$foreignKeyColumn}", '=', 'establishments.id')
            ->orderBy('establishments.name', $direction)
            ->select("{$parentTable}.*");
    }
}