<?php

namespace App\Domains\Academic\Integration\Mappers;

use App\Domains\Academic\Actions\Curriculum\AdjustStudyProgramDetails;
use App\Domains\Academic\Actions\Curriculum\RegisterStudyProgram;
use App\Domains\Academic\DTOs\Curriculum\AdjustStudyProgramDTO;
use App\Domains\Academic\DTOs\Curriculum\RegisterStudyProgramDTO;
use App\Domains\Academic\Models\Faculty;
use App\Domains\Academic\Models\StudyProgram;
use App\Domains\System\Enums\LifecycleStatus;
use App\Domains\System\Support\Integration\DataPayloadMapper;
use Illuminate\Database\Eloquent\Model;

class StudyProgramDataMapper implements DataPayloadMapper
{
    private static array $facultyCache = [];

    public function __construct(
        protected RegisterStudyProgram $registerStudyProgram,
        protected AdjustStudyProgramDetails $adjustStudyProgramDetails,
    )
    {
        // Inject required Domain and Cross-Domain Actions via constructor composition
    }

    public function getLookupKey(): string
    {
        // Return the unique string key used to identify existing records (e.g., 'email')
        return 'external_id';
    }

    public function transform(array $rawData): array
    {
        // Normalize incoming data array formats into an internal domain-safe layout
        return [
            'name' => $rawData['nama_program_studi'],
            'code' => $rawData['kode_program_studi'],
            'level' => $rawData['nama_jenjang_pendidikan'],
            'faculty_id' => self::resolveFacultyId($rawData['id_fakultas']),
            'external_id' => $rawData['id_prodi'],
        ];
    }

    public function updateOrCreateDomainState(array $payload, ?Model $existingModel = null): void
    {
        /** @var StudyProgram $studyProgram */
        $studyProgram = $existingModel;

        if ($studyProgram) {
            $this->adjustStudyProgramDetails->execute($studyProgram, new AdjustStudyProgramDTO(
                level: $payload['level'],
                status: LifecycleStatus::ACTIVE,
            ));
        } else {
            $this->registerStudyProgram->execute(new RegisterStudyProgramDTO(
                name: $payload['name'],
                code: $payload['code'],
                level: $payload['level'],
                status: LifecycleStatus::ACTIVE,
                facultyId: $payload['faculty_id'],
                externalId: $payload['external_id'],
            ));
        }
    }

    /**
     * @return class-string
     */
    public function getModelClass(): string
    {
        return StudyProgram::class;
    }

    private function resolveFacultyId(string $externalId): int {
        if (!isset(self::$facultyCache[$externalId])) {
            self::$facultyCache[$externalId] = Faculty::where('external_id', $externalId)->first()->id;
        }

        return self::$facultyCache[$externalId];
    }
}