<?php

namespace App\Http\Controllers\Api\Staff;

use App\Http\Controllers\Controller;
use App\Services\Email\EmailDispatchService;
use App\Services\Staff\StaffTimeOffLinkService;
use Illuminate\Http\Response;

/**
 * Public principal acknowledgment link — sends courtesy confirmation to the requester.
 */
class TimeOffNotificationController extends Controller
{
    public function __construct(
        private StaffTimeOffLinkService $tokens,
        private EmailDispatchService $mail,
    ) {}

    public function notify(string $token): Response
    {
        $payload = $this->tokens->parseToken($token);

        if (! $payload) {
            return $this->respondHtml('Sorry, this link is invalid or has expired.', 400);
        }

        $email = trim((string) ($payload['email'] ?? ''));
        $fullName = trim((string) ($payload['name'] ?? ''));

        if ($email === '') {
            return $this->respondHtml('Unable to notify the requester because their email was not included.', 400);
        }

        $dates = (string) ($payload['dates'] ?? '-');
        $role = (string) ($payload['role'] ?? 'staff');
        $reason = (string) ($payload['reason'] ?? '');
        $reasonType = (string) ($payload['reason_type'] ?? '');
        $submittedAt = (string) ($payload['submitted_at'] ?? '');
        $origin = (string) ($payload['origin'] ?? 'staff portal');

        try {
            $subject = 'TimeOff Request - Principal Acknowledgment';
            $body = '<div style="font-family:Arial,Helvetica,sans-serif;font-size:14px;line-height:1.5;">'
                .'<p>Dear '.e($fullName !== '' ? $fullName : 'Staff Member').',</p>'
                .'<p>This is a courtesy confirmation that your time-off request submitted via the '
                .e($origin).' has been reviewed by the principal.</p>'
                .'<table cellpadding="6" cellspacing="0" style="border-collapse:collapse;">'
                .'<tr><td><strong>Role</strong></td><td>'.e($role).'</td></tr>'
                .'<tr><td><strong>Dates</strong></td><td>'.e($dates !== '' ? $dates : '-').'</td></tr>'
                .'<tr><td><strong>Reason Type</strong></td><td>'.e($reasonType !== '' ? $reasonType : '-').'</td></tr>'
                .'<tr><td><strong>Reason</strong></td><td>'.e($reason !== '' ? $reason : '-').'</td></tr>'
                .($submittedAt !== '' ? '<tr><td><strong>Submitted At</strong></td><td>'.e($submittedAt).'</td></tr>' : '')
                .'</table>'
                .'<p>If you have any follow-up questions, please contact the principal\'s office directly.</p>'
                .'<p style="margin-top:16px;">Thank you,<br>Al Rahma School Administration</p>'
                .'</div>';

            $this->mail->send($email, $subject, $body, 'notifications');
        } catch (\Throwable $e) {
            logger()->error('Failed to send TimeOff confirmation to requester: '.$e->getMessage());

            return $this->respondHtml(
                'Something went wrong while sending the confirmation email. Please contact IT for help.',
                500
            );
        }

        return $this->respondHtml('Confirmation email sent to the requester. You may close this window.');
    }

    private function respondHtml(string $message, int $statusCode = 200): Response
    {
        $html = '<!DOCTYPE html><html><head><meta charset="utf-8"><title>TimeOff</title></head>'
            .'<body style="font-family:Arial,Helvetica,sans-serif;padding:24px;">'
            .'<p>'.e($message).'</p>'
            .'</body></html>';

        return response($html, $statusCode, [
            'Content-Type' => 'text/html; charset=UTF-8',
        ]);
    }
}
