<?php

namespace App\Controllers\Administrator;

use App\Controllers\BaseController;
use App\Models\SchoolYearModel;
use App\Support\SchoolYear\SchoolYearStatus;
use Throwable;

class SchoolYearController extends BaseController
{
    private SchoolYearModel $schoolYearModel;

    public function __construct()
    {
        $this->schoolYearModel = new SchoolYearModel();
    }

    public function index()
    {
        $schoolYears = $this->schoolYearModel
            ->orderBy('name', 'DESC')
            ->findAll();

        $activeYear = null;
        $nextDraftYear = null;
        $closingYear = null;
        $archivedCount = 0;

        foreach ($schoolYears as $year) {
            $status = (string) ($year['status'] ?? '');
            if ($status === SchoolYearStatus::ACTIVE && $activeYear === null) {
                $activeYear = $year;
            }
            if ($status === SchoolYearStatus::DRAFT && $nextDraftYear === null) {
                $nextDraftYear = $year;
            }
            if ($status === SchoolYearStatus::CLOSING && $closingYear === null) {
                $closingYear = $year;
            }
            if ($status === SchoolYearStatus::ARCHIVED) {
                $archivedCount++;
            }
        }

        return view('school_years/index', [
            'schoolYears' => $schoolYears,
            'statuses' => SchoolYearStatus::ALL,
            'activeYear' => $activeYear,
            'nextDraftYear' => $nextDraftYear,
            'closingYear' => $closingYear,
            'archivedCount' => $archivedCount,
            'latestTransitions' => service('schoolYearManagement')->latestTransitionByYear(),
        ]);
    }

    public function store()
    {
        try {
            service('schoolYearManagement')->createDraft($this->request->getPost(), $this->userId());
            return redirect()->to('/administrator/school-years')->with('success', 'Draft school year created.');
        } catch (Throwable $e) {
            return redirect()->back()->withInput()->with('error', $e->getMessage());
        }
    }

    public function update(int $id)
    {
        try {
            service('schoolYearManagement')->updateMetadata($id, $this->request->getPost(), $this->userId());
            return redirect()->to('/administrator/school-years')->with('success', 'School year metadata updated.');
        } catch (Throwable $e) {
            return redirect()->back()->withInput()->with('error', $e->getMessage());
        }
    }

    public function activate(int $id)
    {
        try {
            if ($this->request->getPost('confirm_activation') !== '1') {
                return redirect()->to('/administrator/school-years')->with('error', 'Activation confirmation is required.');
            }

            service('schoolYearManagement')->activate($id, $this->userId());
            return redirect()->to('/administrator/school-years')->with('success', 'School year activated. Any previous active year is now in closing.');
        } catch (Throwable $e) {
            return redirect()->to('/administrator/school-years')->with('error', $e->getMessage());
        }
    }

    public function deleteDraft(int $id)
    {
        try {
            service('schoolYearManagement')->deleteDraft($id, $this->userId());
            return redirect()->to('/administrator/school-years')->with('success', 'Draft school year deleted.');
        } catch (Throwable $e) {
            return redirect()->to('/administrator/school-years')->with('error', $e->getMessage());
        }
    }

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

    public function reopen(int $id)
    {
        try {
            service('schoolYearManagement')->reopen($id, (string) $this->request->getPost('reason'), $this->userId());
            return redirect()->to('/administrator/school-years')->with('success', 'School year reopened.');
        } catch (Throwable $e) {
            return redirect()->to('/administrator/school-years')->with('error', $e->getMessage());
        }
    }

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

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