<?php

namespace App\Services;

use App\Models\FnmBaseBracket;
use App\Models\FranchiseeFnmBracket;
use App\Models\FranchiseeMaintenanceBracket;
use App\Models\FranchiseeRoyaltiesBracket;
use App\Models\FranchiseeTbr;
use App\Models\MaintenanceBaseBracket;
use App\Models\RoyaltiesBaseBracket;
use Illuminate\Support\Facades\DB;
use Illuminate\Pagination\LengthAwarePaginator;

class FranchiseeTbrService
{
    public function paginate(int $perPage = 15): LengthAwarePaginator
    {
        return FranchiseeTbr::with(['franchisee', 'contract', 'inhabitantClassification'])
            ->orderBy('created_at', 'desc')
            ->paginate($perPage);
    }

    public function findById(int $id): ?FranchiseeTbr
    {
        return FranchiseeTbr::with([
            'franchisee',
            'contract',
            'inhabitantClassification',
            'royaltiesBracket',
            'fnmBracket',
            'maintenanceBracket',
        ])->find($id);
    }

    public function createWithBrackets(array $data): FranchiseeTbr
    {
        return DB::transaction(function () use ($data) {
            $franchiseeId = $data['franchisee_id'];

            $royaltyBrackets     = $this->copyBaseBrackets(RoyaltiesBaseBracket::class, FranchiseeRoyaltiesBracket::class, $franchiseeId);
            $fnmBrackets         = $this->copyBaseBrackets(FnmBaseBracket::class, FranchiseeFnmBracket::class, $franchiseeId);
            $maintenanceBrackets = $this->copyBaseBrackets(MaintenanceBaseBracket::class, FranchiseeMaintenanceBracket::class, $franchiseeId);

            return FranchiseeTbr::create(array_merge($data, [
                'franchisee_royalties_bracket_id'   => $royaltyBrackets->first()?->id,
                'franchisee_fnm_bracket_id'         => $fnmBrackets->first()?->id,
                'franchisee_maintenance_bracket_id' => $maintenanceBrackets->first()?->id,
            ]));
        });
    }

    public function update(int $id, array $data): ?FranchiseeTbr
    {
        $model = $this->findById($id);

        if (!$model) {
            return null;
        }

        $model->update($data);
        return $model->fresh();
    }

    public function delete(int $id): bool
    {
        $model = $this->findById($id);

        if (!$model) {
            return false;
        }

        return $model->delete();
    }

    private function copyBaseBrackets(string $baseClass, string $franchiseeClass, int $franchiseeId): \Illuminate\Database\Eloquent\Collection
    {
        $baseBrackets = $baseClass::orderBy('start_month')->get();

        $copied = $baseBrackets->map(fn ($base) => $franchiseeClass::create([
            'franchisee_id' => $franchiseeId,
            'description'   => $base->description,
            'start_month'   => $base->start_month,
            'end_month'     => $base->end_month,
            'percentage'    => $base->percentage,
        ]));

        return $copied;
    }
}