<?php

namespace App\Support\MedicalReport;

class StructuredTemplateRegistry
{
    public function __construct(
        private readonly DatabaseStructuredTemplateFactory $databaseStructuredTemplateFactory,
        private readonly SourceStructuredTemplateFactory $sourceStructuredTemplateFactory,
        private readonly DepartmentCatalog $departmentCatalog,
        private readonly ReportInputTypeBlueprintFactory $reportInputTypeBlueprintFactory,
    ) {}

    /**
     * @return array<string, mixed>|null
     */
    public function templateForDepartment(string $reportDepartmentKey): ?array
    {
        return $this->databaseStructuredTemplateFactory->templateForDepartment($reportDepartmentKey)
            ?? $this->blueprintTemplate($reportDepartmentKey)
            ?? $this->sourceStructuredTemplateFactory->templateForDepartment($reportDepartmentKey);
    }

    /**
     * @return array<string, mixed>|null
     */
    private function blueprintTemplate(string $reportDepartmentKey): ?array
    {
        $department = collect($this->departmentCatalog->departments())
            ->firstWhere('key', $reportDepartmentKey);

        if ($department === null) {
            return null;
        }

        return $this->reportInputTypeBlueprintFactory->templateForDepartment($department);
    }
}