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LittleBeast / src / Std / Lib / Gitler / Issues.php
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1<?php
2/*************************************************************
3# 076 License
4
5Copyright (c) テクニカル諏訪子
6
7Permission is hereby granted to any person obtaining a copy of the software
8Little Beast (the "Software") to use, modify, merge, copy, publish, distribute,
9sublicense, and/or sell copies of the Software, subject to the following conditions:
10
11 1. **Origin Attribution**:
12 - You must not misrepresent the origin of the Software; you must not claim
13 you created the original Software.
14 - If the Software is used in a product, you must either:
15 a. Provide clear attribution in the product's documentation, user interface,
16 or other visible areas, **OR**
17 b. Pay the original developers a fee they specify in writing.
18 2. **Usage Restriction**:
19 - The Software, or any derivative works, dependencies, or libraries
20 incorporating it, must not be used for censorship or to suppress freedom of
21 speech, expression, or creativity. Prohibited uses include, but are not
22 limited to:
23 - Censorship of so-called "hate speech", visuals, non-mainstream opinions,
24 ideas, or objective reality.
25 - Tools or systems designed to restrict access to information or
26 artistic works.
27 3. **Notice Preservation**:
28 - This license and the above copyright notice must remain intact in all copies
29 of the source code.
30
31THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
32INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
33PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
34HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
35CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE
36OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
37 */
38namespace Std\Lib\Gitler;
39
40use Std\Lib\Git\GitException;
41use Std\Lib\Git\Repository;
42use Std\Lib\Git\Walk;
43use Std\Lib\Markdown;
44use Result;
45
46/**
47 * Gitlerのイシュー（リポジトリの中のgitler/）
48 *
49 * issues.json 索引（次の番号、イシュー毎の概要、リモートのID => [番号, コメント]）
50 * issues/{番号}.json イシュー（本文、コメント、出来事、通知を受け取るユーザー（subscribers：ユーザー名 => bool））
51 * labels.json、milestones.json
52 *
53 * 書く者：local（{user}）、remote（{actor, name, handle, icon, url}、Fediverse）、commit（{commit, name}）。
54 * 本文はMarkdown（htmlがtrueならリモートのHTML、受け取った時に安全にした物）。
55 * プルリクエストも同じ番号のイシュー（pull：Pullsを参照）。インラインのコメントはpath・side・line・commit等を持ち、
56 * レビュー（reviews：id、author、state（commented、approved、changes）、body、at、commit）に属する。
57 */
58final class Issues {
59 public const MAX_TITLE = 200;
60 public const MAX_BODY = 65536;
61 /** プッシュで見るコミットの最大数 */
62 private const MAX_PUSH_COMMITS = 500;
63 /** 「fixes #3」等（英語のGitHubと同じ言葉） */
64 private const CLOSE_RE = '/\b(?:close[sd]?|fix(?:e[sd])?|resolve[sd]?)\s*:?\s+#(\d+)\b/i';
65
66 private string $dir;
67 /** ロックの深さ（同じプロセスで2回ロックしない） */
68 private int $depth = 0;
69
70 public function __construct(public readonly Repository $repo) {
71 $this->dir = $repo->path.'/gitler';
72 }
73
74 public static function open(string $owner, string $name): self {
75 return new self(Gitler::open($owner, $name));
76 }
77
78 //////// 読む
79
80 /** 索引（next、issues：番号 => 概要、remote：リモートのID => [番号, コメントのID]） */
81 public function index(): array {
82 $j = json_decode((string)@file_get_contents($this->dir.'/issues.json'), true);
83 $j = is_array($j) ? $j : [];
84 return ['next' => max(1, (int)($j['next'] ?? 1)), 'issues' => is_array($j['issues'] ?? null) ? $j['issues'] : [], 'remote' => is_array($j['remote'] ?? null) ? $j['remote'] : []];
85 }
86
87 /** 開いている・閉じたイシューの数 */
88 /** 開いている・閉じた数（$pullならプルリクエスト） */
89 public function counts(bool $pull = false): array {
90 $c = ['open' => 0, 'closed' => 0];
91 foreach ($this->index()['issues'] as $s) if (!empty($s['pull']) === $pull) $c[$s['state'] === 'closed' ? 'closed' : 'open']++;
92 return $c;
93 }
94
95 /**
96 * 探す
97 *
98 * @param array $f state（open、closed、all）、label（ID）、milestone（ID、0は無し）、assignee、author、q、sort（created、updated、comments）、
99 * pull（trueならプルリクエストだけ、falseならイシューだけ、既定はfalse、nullなら両方）
100 * @return array 概要の配列（新しい順）
101 */
102 public function search(array $f = []): array {
103 $state = $f['state'] ?? 'open';
104 $q = mb_strtolower(trim((string)($f['q'] ?? '')));
105 $out = [];
106 $pull = array_key_exists('pull', $f) ? $f['pull'] : false;
107 foreach ($this->index()['issues'] as $s) {
108 if ($pull !== null && !empty($s['pull']) !== $pull) continue;
109 if ($state !== 'all' && $s['state'] !== $state) continue;
110 if (isset($f['label']) && !in_array((int)$f['label'], $s['labels'], true)) continue;
111 if (isset($f['milestone']) && (int)($s['milestone'] ?? 0) !== (int)$f['milestone']) continue;
112 if (isset($f['assignee']) && !in_array($f['assignee'], $s['assignees'], true)) continue;
113 if (isset($f['author']) && $s['authorKey'] !== $f['author']) continue;
114 if ($q !== '' && !str_contains(mb_strtolower($s['title']), $q) && ltrim($q, '#') !== (string)$s['number']) continue;
115 $out[] = $s;
116 }
117 $key = match ($f['sort'] ?? 'created') { 'updated' => 'updated', 'comments' => 'comments', default => 'number' };
118 usort($out, fn($a, $b) => $b[$key] <=> $a[$key] ?: $b['number'] <=> $a['number']);
119 return $out;
120 }
121
122 public function get(int $n): ?array {
123 if ($n < 1) return null;
124 $j = json_decode((string)@file_get_contents($this->file($n)), true);
125 return is_array($j) && ($j['number'] ?? 0) === $n ? $j : null;
126 }
127
128 /** リモートのIDのイシューとコメント（[番号, コメントのID又はnull]） */
129 public function findRemote(string $id): ?array {
130 $r = $this->index()['remote'][$id] ?? null;
131 return is_array($r) ? [(int)$r[0], $r[1] === null ? null : (int)$r[1]] : null;
132 }
133
134 //////// 書く
135
136 /**
137 * イシューを作る
138 *
139 * @param array $author 書いた者
140 * @param array $opt html（本文がHTML）、remoteId、labels、assignees、milestone、pull（プルリクエストの情報）
141 */
142 public function create(array $author, string $title, string $body, array $opt = []): Result {
143 $title = self::cleanTitle($title);
144 if ($title === '') return Result::Error('題名を入力して下さい。');
145 if (strlen($body) > self::MAX_BODY) return Result::Error('本文が長過ぎます。');
146 return $this->locked(function() use ($author, $title, $body, $opt): Result {
147 $idx = $this->index();
148 if (isset($opt['remoteId']) && isset($idx['remote'][$opt['remoteId']])) return Result::Error('既に有ります。', ['number' => (int)$idx['remote'][$opt['remoteId']][0]]);
149 $n = $idx['next'];
150 $now = time();
151 $issue = [
152 'number' => $n, 'title' => $title, 'body' => $body, 'html' => !empty($opt['html']), 'author' => $author, 'state' => 'open',
153 'created' => $now, 'updated' => $now, 'closed' => null, 'labels' => $this->validLabels($opt['labels'] ?? []),
154 'assignees' => array_values(array_unique(array_map('strval', $opt['assignees'] ?? []))), 'milestone' => $this->validMilestone($opt['milestone'] ?? null),
155 'remoteId' => $opt['remoteId'] ?? null, 'comments' => [], 'events' => [], 'seq' => 1, 'subscribers' => [],
156 ];
157 if (isset($opt['pull'])) $issue += ['pull' => $opt['pull'], 'reviews' => []];
158 // 作った人と担当者は通知を受け取る
159 foreach (array_merge(isset($author['user']) ? [$author['user']] : [], $issue['assignees']) as $u) $issue['subscribers'][$u] = true;
160 $idx['next'] = $n + 1;
161 if ($issue['remoteId'] !== null) $idx['remote'][$issue['remoteId']] = [$n, null];
162 $this->save($issue, $idx);
163 return Result::Success('イシューを作りました。', ['number' => $n, 'issue' => $issue]);
164 });
165 }
166
167 /**
168 * イシューを変える（$fnはイシューを受け取って新しいイシューを返す、nullなら何もしない）
169 *
170 * @return array|null 新しいイシュー
171 */
172 public function update(int $n, callable $fn): ?array {
173 return $this->locked(function() use ($n, $fn): ?array {
174 $issue = $this->get($n);
175 if ($issue === null) return null;
176 $new = $fn($issue);
177 if (!is_array($new)) return null;
178 $new['updated'] = time();
179 $idx = $this->index();
180 // リモートのIDの索引を作り直す
181 foreach ($idx['remote'] as $id => [$num]) if ((int)$num === $n) unset($idx['remote'][$id]);
182 if (($new['remoteId'] ?? null) !== null) $idx['remote'][$new['remoteId']] = [$n, null];
183 foreach ($new['comments'] as $c) if (($c['remoteId'] ?? null) !== null) $idx['remote'][$c['remoteId']] = [$n, $c['id']];
184 $this->save($new, $idx);
185 return $new;
186 });
187 }
188
189 /** 題名と本文を変える */
190 public function edit(int $n, array $by, string $title, string $body): Result {
191 $title = self::cleanTitle($title);
192 if ($title === '') return Result::Error('題名を入力して下さい。');
193 if (strlen($body) > self::MAX_BODY) return Result::Error('本文が長過ぎます。');
194 $issue = $this->update($n, function(array $i) use ($by, $title, $body): array {
195 if ($i['title'] !== $title) $i['events'][] = ['type' => 'title', 'by' => $by, 'at' => time(), 'from' => $i['title'], 'to' => $title];
196 $i['title'] = $title;
197 $i['body'] = $body;
198 $i['edited'] = time();
199 return $i;
200 });
201 return $issue ? Result::Success('保存しました。', ['issue' => $issue]) : Result::Error('イシューが有りません。');
202 }
203
204 /**
205 * コメントを追加する
206 *
207 * @param array $opt html、remoteId
208 */
209 public function comment(int $n, array $author, string $body, array $opt = []): Result {
210 if (trim($body) === '') return Result::Error('コメントを入力して下さい。');
211 if (strlen($body) > self::MAX_BODY) return Result::Error('コメントが長過ぎます。');
212 $added = null;
213 $issue = $this->update($n, function(array $i) use ($author, $body, $opt, &$added): ?array {
214 if (isset($opt['remoteId'])) foreach ($i['comments'] as $c) if (($c['remoteId'] ?? null) === $opt['remoteId']) return null;
215 $added = ['id' => (int)$i['seq'], 'author' => $author, 'body' => $body, 'html' => !empty($opt['html']), 'created' => time(), 'updated' => time(),
216 'remoteId' => $opt['remoteId'] ?? null];
217 $i['seq'] = (int)$i['seq'] + 1;
218 $i['comments'][] = $added;
219 // コメントした人は通知を受け取る（止めていても）
220 if (isset($author['user'])) $i['subscribers'][$author['user']] = true;
221 return $i;
222 });
223 if ($issue === null || $added === null) return Result::Error('コメント出来ません。');
224 return Result::Success('コメントしました。', ['issue' => $issue, 'comment' => $added]);
225 }
226
227 /**
228 * プルリクエストの行へのコメント
229 *
230 * @param array $at path、side（old、new）、line、commit、hunk（表示用の前の行）、replyTo（スレッドの最初のコメント）、pending（レビューの下書き）
231 */
232 public function inlineComment(int $n, array $author, string $body, array $at): Result {
233 if (trim($body) === '') return Result::Error('コメントを入力して下さい。');
234 if (strlen($body) > self::MAX_BODY) return Result::Error('コメントが長過ぎます。');
235 $added = null;
236 $issue = $this->update($n, function(array $i) use ($author, $body, $at, &$added): ?array {
237 if (!isset($i['pull'])) return null;
238 $root = null;
239 if (!empty($at['replyTo'])) {
240 foreach ($i['comments'] as $c) if ($c['id'] === (int)$at['replyTo'] && isset($c['path'])) $root = $c;
241 if ($root === null) return null;
242 }
243 $added = ['id' => (int)$i['seq'], 'author' => $author, 'body' => $body, 'html' => false, 'created' => time(), 'updated' => time(), 'remoteId' => null,
244 'path' => (string)($root['path'] ?? $at['path']), 'side' => ($root['side'] ?? $at['side']) === 'old' ? 'old' : 'new', 'line' => (int)($root['line'] ?? $at['line']),
245 'commit' => (string)($root['commit'] ?? $at['commit']), 'hunk' => $root !== null ? [] : array_values(array_map('strval', (array)($at['hunk'] ?? []))),
246 'replyTo' => $root !== null ? $root['id'] : null, 'review' => null, 'pending' => !empty($at['pending'])];
247 $i['seq'] = (int)$i['seq'] + 1;
248 $i['comments'][] = $added;
249 if (isset($author['user'])) $i['subscribers'][$author['user']] = true;
250 return $i;
251 });
252 if ($issue === null || $added === null) return Result::Error('コメント出来ません。');
253 return Result::Success('コメントしました。', ['issue' => $issue, 'comment' => $added]);
254 }
255
256 /**
257 * レビューを出す（その人の下書きのコメントをレビューに入れる）
258 *
259 * @param string $state commented、approved、changes
260 */
261 public function submitReview(int $n, array $author, string $state, string $body, string $commit): Result {
262 if (!in_array($state, ['commented', 'approved', 'changes'], true)) return Result::Error('不正なレビューです。');
263 if (strlen($body) > self::MAX_BODY) return Result::Error('本文が長過ぎます。');
264 $review = null;
265 $key = self::authorKey($author);
266 $issue = $this->update($n, function(array $i) use ($author, $state, $body, $commit, $key, &$review): ?array {
267 if (!isset($i['pull'])) return null;
268 $pending = array_filter($i['comments'], fn($c) => !empty($c['pending']) && self::authorKey($c['author']) === $key);
269 if ($state === 'commented' && trim($body) === '' && empty($pending)) return null;
270 $id = (int)($i['rseq'] ?? 1);
271 $review = ['id' => $id, 'author' => $author, 'state' => $state, 'body' => $body, 'at' => time(), 'commit' => $commit];
272 $i['rseq'] = $id + 1;
273 $i['reviews'][] = $review;
274 foreach ($i['comments'] as $k => $c) {
275 if (!empty($c['pending']) && self::authorKey($c['author']) === $key) {
276 $i['comments'][$k]['pending'] = false;
277 $i['comments'][$k]['review'] = $id;
278 $i['comments'][$k]['created'] = time();
279 }
280 }
281 if (isset($author['user'])) $i['subscribers'][$author['user']] = true;
282 return $i;
283 });
284 if ($issue === null || $review === null) return Result::Error('コメントを入力して下さい。');
285 return Result::Success('レビューを出しました。', ['issue' => $issue, 'review' => $review]);
286 }
287
288 /** コメントを変える（nullなら削除） */
289 public function editComment(int $n, int $id, ?string $body): ?array {
290 if ($body !== null && (trim($body) === '' || strlen($body) > self::MAX_BODY)) return null;
291 $found = null;
292 $this->update($n, function(array $i) use ($id, $body, &$found): ?array {
293 foreach ($i['comments'] as $k => $c) {
294 if ($c['id'] !== $id) continue;
295 $found = $c;
296 if ($body === null) {
297 array_splice($i['comments'], $k, 1);
298 } else {
299 $i['comments'][$k]['body'] = $body;
300 $i['comments'][$k]['updated'] = time();
301 $found = $i['comments'][$k];
302 }
303 return $i;
304 }
305 return null;
306 });
307 return $found;
308 }
309
310 /** 閉じる・開く（変わらなければnull） */
311 public function setState(int $n, bool $open, array $by, array $extra = []): ?array {
312 return $this->update($n, function(array $i) use ($open, $by, $extra): ?array {
313 if (($i['state'] === 'open') === $open) return null;
314 $i['state'] = $open ? 'open' : 'closed';
315 $i['closed'] = $open ? null : time();
316 $i['events'][] = ['type' => $open ? 'reopened' : 'closed', 'by' => $by, 'at' => time()] + $extra;
317 return $i;
318 });
319 }
320
321 /** ラベル・担当者・マイルストーン（書き込み権限の有る人） */
322 public function triage(int $n, array $by, ?array $labels, ?array $assignees, int|false|null $milestone): ?array {
323 return $this->update($n, function(array $i) use ($by, $labels, $assignees, $milestone): array {
324 $at = time();
325 if ($labels !== null) {
326 $labels = $this->validLabels($labels);
327 $add = array_values(array_diff($labels, $i['labels']));
328 $remove = array_values(array_diff($i['labels'], $labels));
329 if ($add || $remove) $i['events'][] = ['type' => 'labels', 'by' => $by, 'at' => $at, 'add' => $add, 'remove' => $remove];
330 $i['labels'] = $labels;
331 }
332 if ($assignees !== null) {
333 $assignees = array_values(array_unique(array_map('strval', $assignees)));
334 $add = array_values(array_diff($assignees, $i['assignees']));
335 $remove = array_values(array_diff($i['assignees'], $assignees));
336 if ($add || $remove) $i['events'][] = ['type' => 'assignees', 'by' => $by, 'at' => $at, 'add' => $add, 'remove' => $remove];
337 foreach ($add as $u) $i['subscribers'][$u] = true;
338 $i['assignees'] = $assignees;
339 }
340 if ($milestone !== false) {
341 $m = $this->validMilestone($milestone);
342 if ($m !== $i['milestone']) $i['events'][] = ['type' => 'milestone', 'by' => $by, 'at' => $at, 'from' => $i['milestone'], 'to' => $m];
343 $i['milestone'] = $m;
344 }
345 return $i;
346 });
347 }
348
349 /** 通知を受け取る・止める（明示的に止めた人はtrueに戻るまで受け取らない） */
350 public function subscribe(int $n, array $users, bool $on): ?array {
351 return $this->update($n, function(array $i) use ($users, $on): array {
352 foreach ($users as $u) $i['subscribers'][(string)$u] = $on;
353 return $i;
354 });
355 }
356
357 /** イシューを消す（番号は使い回さない） */
358 public function delete(int $n): bool {
359 return $this->locked(function() use ($n): bool {
360 if ($this->get($n) === null) return false;
361 $idx = $this->index();
362 unset($idx['issues'][(string)$n]);
363 foreach ($idx['remote'] as $id => [$num]) if ((int)$num === $n) unset($idx['remote'][$id]);
364 $this->writeJson($this->dir.'/issues.json', $idx);
365 @unlink($this->file($n));
366 return true;
367 });
368 }
369
370 //////// プッシュ
371
372 /**
373 * プッシュしたコミットのメッセージの「#3」をイシューに記録し、既定のブランチなら「fixes #3」等で閉じる
374 *
375 * @param array $updates [参照, 前, 後]の配列
376 * @param string $default 既定のブランチ（refs/heads/…）
377 * @return array 閉じたイシューの番号
378 */
379 public function processPush(array $updates, string $default): array {
380 $zero = $this->repo->zeroId();
381 $closed = [];
382 if (empty($this->index()['issues'])) return [];
383 foreach ($updates as [$ref, $old, $new]) {
384 if (!str_starts_with($ref, 'refs/heads/') || $new === $zero) continue;
385 // 新しいブランチは他のブランチに無いコミットだけ
386 $haves = $old !== $zero ? [$old] : array_values(array_filter($this->repo->refs->all('refs/heads/'), fn($id, $r) => $r !== $ref, ARRAY_FILTER_USE_BOTH));
387 try {
388 [$ids] = (new Walk($this->repo))->commitsBetween([$new], $haves);
389 } catch (GitException) {
390 continue;
391 }
392 // 古い順に
393 foreach (array_reverse(array_slice($ids, 0, self::MAX_PUSH_COMMITS)) as $id) {
394 $c = $this->repo->commit($id);
395 if (!preg_match_all('/(?<![\w&\/])#(\d+)\b/', $c->message, $m)) continue;
396 preg_match_all(self::CLOSE_RE, $c->message, $cm);
397 $closes = array_map('intval', $cm[1]);
398 $by = ['commit' => $id, 'name' => $c->author?->name ?? ''];
399 foreach (array_unique(array_map('intval', $m[1])) as $n) {
400 $close = $ref === $default && in_array($n, $closes, true) && empty($this->index()['issues'][$n]['pull']);
401 $didClose = false;
402 $this->update($n, function(array $i) use ($id, $c, $by, $close, $ref, &$didClose): ?array {
403 // マージしたプルリクエスト自身のコミットは記録しない
404 $seen = ($i['pull']['merged']['commit'] ?? '') === $id;
405 foreach ($i['events'] as $e) if ($e['type'] === 'commit' && $e['commit'] === $id) $seen = true;
406 if (!$seen) $i['events'][] = ['type' => 'commit', 'by' => $by, 'at' => time(), 'commit' => $id, 'subject' => $c->subject(), 'branch' => substr($ref, 11)];
407 $didClose = $close && $i['state'] === 'open';
408 if ($didClose) {
409 $i['state'] = 'closed';
410 $i['closed'] = time();
411 $i['events'][] = ['type' => 'closed', 'by' => $by, 'at' => time(), 'commit' => $id];
412 }
413 return $seen && !$didClose ? null : $i;
414 });
415 if ($didClose) $closed[$n] = true;
416 }
417 }
418 }
419 return array_keys($closed);
420 }
421
422 //////// ラベルとマイルストーン
423
424 /** ラベル（ID => name、color、description） */
425 public function labels(): array {
426 return $this->readList('labels.json', 'labels');
427 }
428
429 public function saveLabel(?int $id, string $name, string $color, string $description): Result {
430 $name = trim(preg_replace('/[\x00-\x1f\x7f]/', '', $name));
431 if ($name === '' || mb_strlen($name) > 50) return Result::Error('ラベルの名前は1〜50文字です。');
432 if (!preg_match('/^#[0-9a-fA-F]{6}$/', $color)) return Result::Error('色が不正です。');
433 return $this->locked(function() use ($id, $name, $color, $description): Result {
434 $l = $this->readList('labels.json', 'labels', true);
435 foreach ($l['labels'] as $k => $x) if ((int)$k !== $id && mb_strtolower($x['name']) === mb_strtolower($name)) return Result::Error("ラベル「{$name}」は既に有ります。");
436 if ($id !== null && !isset($l['labels'][$id])) return Result::Error('ラベルが有りません。');
437 $id ??= $l['next']++;
438 $l['labels'][$id] = ['name' => $name, 'color' => strtolower($color), 'description' => mb_substr(trim($description), 0, 200)];
439 $this->writeJson($this->dir.'/labels.json', $l);
440 return Result::Success('保存しました。', ['id' => $id]);
441 });
442 }
443
444 public function deleteLabel(int $id): void {
445 $this->locked(function() use ($id): void {
446 $l = $this->readList('labels.json', 'labels', true);
447 unset($l['labels'][$id]);
448 $this->writeJson($this->dir.'/labels.json', $l);
449 });
450 foreach ($this->search(['state' => 'all', 'label' => $id]) as $s) {
451 $this->update($s['number'], function(array $i) use ($id): array {
452 $i['labels'] = array_values(array_diff($i['labels'], [$id]));
453 return $i;
454 });
455 }
456 }
457
458 /** マイルストーン（ID => title、description、due（Y-m-d又は空）、state） */
459 public function milestones(): array {
460 return $this->readList('milestones.json', 'milestones');
461 }
462
463 public function saveMilestone(?int $id, string $title, string $description, string $due, string $state = 'open'): Result {
464 $title = trim(preg_replace('/[\x00-\x1f\x7f]/', '', $title));
465 if ($title === '' || mb_strlen($title) > 100) return Result::Error('マイルストーンの名前は1〜100文字です。');
466 if ($due !== '' && (!preg_match('/^\d{4}-\d{2}-\d{2}$/', $due) || !checkdate((int)substr($due, 5, 2), (int)substr($due, 8, 2), (int)substr($due, 0, 4)))) return Result::Error('期日が不正です。');
467 return $this->locked(function() use ($id, $title, $description, $due, $state): Result {
468 $l = $this->readList('milestones.json', 'milestones', true);
469 if ($id !== null && !isset($l['milestones'][$id])) return Result::Error('マイルストーンが有りません。');
470 $id ??= $l['next']++;
471 $l['milestones'][$id] = ['title' => $title, 'description' => mb_substr(trim($description), 0, 2000), 'due' => $due, 'state' => $state === 'closed' ? 'closed' : 'open'];
472 $this->writeJson($this->dir.'/milestones.json', $l);
473 return Result::Success('保存しました。', ['id' => $id]);
474 });
475 }
476
477 public function deleteMilestone(int $id): void {
478 $this->locked(function() use ($id): void {
479 $l = $this->readList('milestones.json', 'milestones', true);
480 unset($l['milestones'][$id]);
481 $this->writeJson($this->dir.'/milestones.json', $l);
482 });
483 foreach ($this->search(['state' => 'all', 'milestone' => $id]) as $s) {
484 $this->update($s['number'], function(array $i): array {
485 $i['milestone'] = null;
486 return $i;
487 });
488 }
489 }
490
491 //////// 表示
492
493 /**
494 * MarkdownをHTMLにする（安全なリンクだけ、「#3」をイシューへのリンクに）
495 *
496 * @param string $issuesUrl イシューの一覧のURL（…/issues）
497 */
498 public static function render(string $text, string $issuesUrl): string {
499 $html = Markdown::fromString($text)->parse();
500 $html = (string)preg_replace_callback('/\s(href|src)="([^"]*)"/i', function(array $m): string {
501 $url = html_entity_decode($m[2], ENT_QUOTES, 'UTF-8');
502 return preg_match('~^(https?:|mailto:|#|/(?!/))~i', $url) ? " {$m[1]}=\"{$m[2]}\"" : " {$m[1]}=\"#\"";
503 }, $html);
504 return self::linkify($html, $issuesUrl);
505 }
506
507 /** HTMLの文字の部分（a、code、preの外）の「#3」、「@ユーザー」（居れば）とURLをリンクにする */
508 public static function linkify(string $html, string $issuesUrl): string {
509 $parts = preg_split('/(<[^>]*>)/', $html, -1, PREG_SPLIT_DELIM_CAPTURE);
510 $depth = 0;
511 foreach ($parts as $k => $p) {
512 if ($p === '') continue;
513 if ($p[0] === '<') {
514 if (preg_match('~^<(/?)(a|code|pre)\b~i', $p, $m)) $depth = max(0, $depth + ($m[1] === '/' ? -1 : 1));
515 continue;
516 }
517 if ($depth > 0) continue;
518 $parts[$k] = (string)preg_replace_callback('~(https?://[^\s<>"]+[^\s<>".,;:!?)\]」。、])|(?<![\w&#/])#(\d+)\b|(?<![\w@/&.])@([A-Za-z0-9]+)(?![\w@]|\.\w)~u', function(array $m) use ($issuesUrl): string {
519 if (($m[3] ?? '') !== '') return Gitler::user($m[3]) !== null ? '<a href="/gitler/'.$m[3].'">@'.$m[3].'</a>' : $m[0];
520 if (($m[2] ?? '') !== '') return '<a href="'.htmlspecialchars($issuesUrl, ENT_QUOTES, 'UTF-8').'/'.$m[2].'">#'.$m[2].'</a>';
521 return '<a href="'.$m[1].'" rel="nofollow noopener noreferrer">'.$m[1].'</a>';
522 }, $p);
523 }
524 return implode('', $parts);
525 }
526
527 /** 書いた者の比較用のキー（ローカルはユーザー名、リモートはアクターのURL） */
528 public static function authorKey(array $a): string {
529 return (string)($a['user'] ?? $a['actor'] ?? ('commit:'.($a['commit'] ?? '')));
530 }
531
532 //////// 内部
533
534 private function file(int $n): string {
535 return $this->dir.'/issues/'.$n.'.json';
536 }
537
538 private static function cleanTitle(string $t): string {
539 return mb_substr(trim(preg_replace('/[\x00-\x1f\x7f]+/', ' ', $t)), 0, self::MAX_TITLE);
540 }
541
542 private function validLabels(array $ids): array {
543 $all = $this->labels();
544 return array_values(array_unique(array_filter(array_map('intval', $ids), fn($id) => isset($all[$id]))));
545 }
546
547 private function validMilestone(mixed $id): ?int {
548 $id = (int)$id;
549 return $id > 0 && isset($this->milestones()[$id]) ? $id : null;
550 }
551
552 /** ID => 物（$withNextなら[next, 名前 => ID => 物]） */
553 private function readList(string $file, string $key, bool $withNext = false): array {
554 $j = json_decode((string)@file_get_contents($this->dir.'/'.$file), true);
555 $list = [];
556 foreach ((array)($j[$key] ?? []) as $id => $x) if (is_array($x)) $list[(int)$id] = $x;
557 return $withNext ? ['next' => max(1, (int)($j['next'] ?? 1), ...array_map(fn($id) => $id + 1, array_keys($list))), $key => $list] : $list;
558 }
559
560 /** イシューと索引を書く */
561 private function save(array $issue, array $idx): void {
562 $last = $issue['created'];
563 foreach ($issue['comments'] as $c) $last = max($last, $c['created']);
564 $idx['issues'][(string)$issue['number']] = [
565 'number' => $issue['number'], 'title' => $issue['title'], 'state' => $issue['state'], 'author' => $issue['author'], 'authorKey' => self::authorKey($issue['author']),
566 'created' => $issue['created'], 'updated' => $issue['updated'], 'closed' => $issue['closed'], 'labels' => $issue['labels'], 'assignees' => $issue['assignees'],
567 'milestone' => $issue['milestone'], 'comments' => count(array_filter($issue['comments'], fn($c) => empty($c['pending']))), 'last' => $last,
568 'pull' => isset($issue['pull']), 'merged' => !empty($issue['pull']['merged']),
569 ];
570 $this->repo->mkdir($this->dir.'/issues');
571 $this->writeJson($this->file($issue['number']), $issue);
572 $this->writeJson($this->dir.'/issues.json', $idx);
573 }
574
575 private function writeJson(string $file, array $data): void {
576 $this->repo->mkdir(dirname($file));
577 $this->repo->writeFile($file, (string)json_encode($data, JSON_UNESCAPED_UNICODE | JSON_UNESCAPED_SLASHES));
578 }
579
580 /** gitler/の中を書く間はロックする（Webとgitユーザーの両方から書けるロックファイル） */
581 private function locked(callable $fn): mixed {
582 if ($this->depth > 0) return $fn();
583 $this->repo->mkdir($this->dir);
584 $file = $this->dir.'/issues.lock';
585 $new = !is_file($file);
586 $lock = @fopen($file, 'c');
587 if ($lock && $new) $this->repo->chmodFile($file);
588 if ($lock) flock($lock, LOCK_EX);
589 $this->depth++;
590 try {
591 return $fn();
592 } finally {
593 $this->depth--;
594 if ($lock) {
595 flock($lock, LOCK_UN);
596 fclose($lock);
597 }
598 }
599 }
600}