<?php

namespace App\Controllers\Administrator;

use App\Controllers\BaseController;
use App\Models\SchoolYearModel;
use Throwable;

class SchoolYearClosingController extends BaseController
{
    public function preview(int $id)
    {
        try {
            $targetId = $this->normalizeInt($this->request->getGet('target_school_year_id'));

            return view('school_years/closing_preview', [
                'preview' => service('schoolYearClosing')->preview($id, $targetId),
                'latestBatch' => service('schoolYearClosing')->latestBatch($id),
                'schoolYears' => (new SchoolYearModel())->orderBy('name', 'DESC')->findAll(),
            ]);
        } catch (Throwable $e) {
            return redirect()->to('/administrator/school-years')->with('error', $e->getMessage());
        }
    }

    public function start(int $id)
    {
        try {
            $targetId = $this->normalizeInt($this->request->getPost('target_school_year_id'));
            if ($targetId === null) {
                return redirect()->back()->with('error', 'Select a target school year.');
            }

            service('schoolYearClosing')->start($id, $targetId, $this->userId());
            return redirect()->to('/administrator/school-years/' . $id . '/closing/preview')->with('success', 'Closing started.');
        } catch (Throwable $e) {
            return redirect()->back()->with('error', $e->getMessage());
        }
    }

    public function execute(int $id)
    {
        try {
            service('schoolYearClosing')->execute($id, $this->userId());
            return redirect()->to('/administrator/school-years/' . $id . '/closing/preview')->with('success', 'Carry-forward batch executed.');
        } catch (Throwable $e) {
            return redirect()->back()->with('error', $e->getMessage());
        }
    }

    public function complete(int $id)
    {
        try {
            service('schoolYearClosing')->complete($id, $this->userId());
            return redirect()->to('/administrator/school-years')->with('success', 'School year closed.');
        } catch (Throwable $e) {
            return redirect()->back()->with('error', $e->getMessage());
        }
    }

    public function cancel(int $id)
    {
        try {
            service('schoolYearClosing')->cancel($id, $this->userId());
            return redirect()->to('/administrator/school-years')->with('success', 'Closing cancelled.');
        } catch (Throwable $e) {
            return redirect()->back()->with('error', $e->getMessage());
        }
    }

    private function normalizeInt(mixed $value): ?int
    {
        return is_numeric($value) && (int) $value > 0 ? (int) $value : null;
    }

    private function userId(): ?int
    {
        $id = session('user_id') ?? session('id');

        return is_numeric($id) ? (int) $id : null;
    }
}