<?php

require_once __DIR__ . '/../includes/api_bootstrap.php';
require_once __DIR__ . '/../includes/chore_helpers.php';

if ($_SERVER['REQUEST_METHOD'] !== 'POST') {
    sendJson(['success' => false, 'error' => 'Method not allowed'], 405);
}

$people = migrateAllPeople(normalizePeopleList(readJsonFile('people.json')));
$actor = requireActivePerson($people);

$body = readJsonBody();
$rawChores = normalizeChoresList(readJsonFile('chores.json'));
$chores = migrateAllChores($rawChores, $people);

$id = isset($body['id']) ? trim((string) $body['id']) : '';

if ($id !== '') {
    $idx = findChoreIndexById($chores, $id);
    if ($idx === null) {
        sendJson(['success' => false, 'error' => 'Chore not found'], 404);
    }
    $existing = $chores[$idx];
    $isAuthor = ($existing['author_id'] ?? '') === ($actor['id'] ?? '');
    $isHoH = ($actor['role'] ?? '') === ROLE_HEAD && isHohVerified();
    if (!$isAuthor && !$isHoH) {
        sendJson(['success' => false, 'error' => 'You cannot edit this chore'], 403);
    }
    $row = $existing;
} else {
    if (($actor['role'] ?? '') !== ROLE_HEAD || !isHohVerified()) {
        sendJson(['success' => false, 'error' => 'Only a verified Head of household can create chores'], 403);
    }
    $row = [
        'id' => bin2hex(random_bytes(8)),
        'author_id' => (string) ($actor['id'] ?? ''),
        'pending_submission' => null,
        'status' => 'active',
        'anyone_can_complete' => false,
        'nfc' => normalizeChoreNfcMeta(null),
    ];
    $idx = null;
}

$title = isset($body['title']) ? trim((string) $body['title']) : '';
if ($title === '') {
    sendJson(['success' => false, 'error' => 'Title is required'], 400);
}

$assigneeIds = $body['assignee_ids'] ?? [];
if (!is_array($assigneeIds)) {
    $assigneeIds = [];
}
$assigneeIdsClean = [];
foreach ($assigneeIds as $aid) {
    $aid = trim((string) $aid);
    if ($aid !== '') {
        $assigneeIdsClean[] = $aid;
    }
}
$assigneeIdsClean = array_values(array_unique($assigneeIdsClean));

if (!choreAssigneeIdsValid($assigneeIdsClean, $people)) {
    sendJson(['success' => false, 'error' => 'One or more assignees are invalid'], 400);
}

$row['title'] = $title;
$row['description'] = isset($body['description']) ? trim((string) $body['description']) : '';
$row['image'] = isset($body['image']) ? trim((string) $body['image']) : '';
$row['lists'] = normalizeChoreLists($body['lists'] ?? []);
$row['assignee_ids'] = $assigneeIdsClean;
$row['anyone_can_complete'] = !empty($body['anyone_can_complete']);

$val = isset($body['value']) ? $body['value'] : 0;
$row['value'] = is_numeric($val) ? max(0.0, (float) $val) : 0.0;

$due = isset($body['due_date']) ? trim((string) $body['due_date']) : '';
if ($due !== '' && !preg_match('/^\d{4}-\d{2}-\d{2}$/', $due)) {
    sendJson(['success' => false, 'error' => 'due_date must be YYYY-MM-DD'], 400);
}
$row['due_date'] = $due;

$sched = isset($body['schedule']) ? (string) $body['schedule'] : CHORE_SCHEDULE_ONCE;
$row['schedule'] = $sched === CHORE_SCHEDULE_RECURRING ? CHORE_SCHEDULE_RECURRING : CHORE_SCHEDULE_ONCE;

$rd = isset($body['recurrence_days']) ? (int) $body['recurrence_days'] : ($row['recurrence_days'] ?? 7);
$row['recurrence_days'] = max(1, $rd);

if ($idx === null) {
    $chores[] = migrateLegacyChoreRow($row, $people);
} else {
    $chores[$idx] = migrateLegacyChoreRow($row, $people);
}

if (!writeJsonFile('chores.json', $chores)) {
    sendJson(['success' => false, 'error' => 'Failed to save chores'], 500);
}

sendJson(['success' => true, 'chore' => $row]);