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{ assertEquals } from \"https://deno.land/std@0.224.0/assert/mod.ts\";\nimport { extractNitterRewrites } from \"../src/rewrite.ts\";\nimport { scenarios } from \"./scenarios.ts\";\n\nfor (const scenario of scenarios) {\n Deno.test(scenario.name, () => {\n const rewrites = extractNitterRewrites(scenario.content);\n assertEquals(rewrites, scenario.expected);\n });\n}\n",[],[172,179],{"_104":188,"_95":189,"_153":190,"_155":173,"_156":138,"_157":191,"_159":160,"_106":192,"_100":32,"_162":183,"_164":193,"_165":22,"_166":-5,"_167":194,"_98":195},"c5cb4b62-b4d8-11f0-8fa6-0224a6c84d84","scenarios.ts","c5cb4c3e-b4d8-11f0-8fa6-0224a6c84d84",5,["D",1761750357260],"import type { LinkRewrite } from \"../src/rewrite.ts\";\n\nexport interface RewriteScenario {\n name: string;\n content: string;\n expected: LinkRewrite[];\n}\n\nexport const scenarios: RewriteScenario[] = [\n {\n name: \"rewrites standard twitter.com links\",\n content: \"Check this out https://twitter.com/example/status/1234567890123456789\",\n expected: [{\n original: \"https://twitter.com/example/status/1234567890123456789\",\n rewritten: \"https://nitter.net/example/status/1234567890123456789\",\n }],\n },\n {\n name: \"rewrites x.com and preserves query params\",\n content: \"https://x.com/foo/status/1?s=20&t=abcd\",\n expected: [{\n original: \"https://x.com/foo/status/1?s=20&t=abcd\",\n rewritten: \"https://nitter.net/foo/status/1?s=20&t=abcd\",\n }],\n },\n {\n name: \"deduplicates identical links\",\n content: \"https://twitter.com/foo/status/1 https://twitter.com/foo/status/1\",\n expected: [{\n original: \"https://twitter.com/foo/status/1\",\n rewritten: \"https://nitter.net/foo/status/1\",\n }],\n },\n {\n name: \"strips trailing punctuation from matches\",\n content: \"Did you see this? https://twitter.com/foo/status/1). Wild!\",\n expected: [{\n original: \"https://twitter.com/foo/status/1\",\n rewritten: \"https://nitter.net/foo/status/1\",\n }],\n },\n {\n name: \"supports alternate twitter frontends\",\n content: \"mirror https://vxtwitter.com/foo/status/1, please\",\n expected: [{\n original: \"https://vxtwitter.com/foo/status/1\",\n rewritten: \"https://nitter.net/foo/status/1\",\n }],\n },\n {\n name: \"ignores unrelated links\",\n content: \"https://example.com and https://youtube.com/watch?v=1\",\n expected: [],\n },\n];\n",[],[172,189],[172],{"_104":198,"_95":199,"_153":200,"_155":-5,"_156":138,"_157":201,"_159":160,"_106":202,"_100":32,"_162":203,"_164":204,"_165":22,"_166":-5,"_167":205,"_98":206},"c5c5086a-b4d8-11f0-8c54-0224a6c84d84","bot.cron.ts","c5c50932-b4d8-11f0-8c54-0224a6c84d84",4,["D",1761750357235],"interval","import { blob } from \"https://esm.town/v/std/blob\";\nimport { extractNitterRewrites, type LinkRewrite } from \"./src/rewrite.ts\";\n\nconst DISCORD_API = \"https://discord.com/api/v10\";\nconst STATE_KEY = \"discordNitterBotState\";\n\nexport const cron = \"*/1 * * * *\"; // every minute\n\ninterface DiscordMessage {\n id: string;\n content: string;\n author: {\n id: string;\n username: string;\n bot?: boolean;\n };\n}\n\ninterface ChannelState {\n [channelId: string]: string | undefined;\n}\n\nexport default async function run() {\n const token = Deno.env.get(\"DISCORD_BOT_TOKEN\");\n if (!token) {\n throw new Error(\"Missing DISCORD_BOT_TOKEN environment variable\");\n }\n\n const channelIds = parseChannelIds(Deno.env.get(\"DISCORD_CHANNEL_IDS\"));\n if (channelIds.length === 0) {\n throw new Error(\"DISCORD_CHANNEL_IDS must include at least one channel id\");\n }\n\n const botUserId = Deno.env.get(\"DISCORD_BOT_USER_ID\") ?? null;\n\n const state = await readState();\n let hasChanges = false;\n\n for (const channelId of channelIds) {\n const lastSeen = state[channelId];\n const { latestId, responded } = await processChannel({\n channelId,\n token,\n lastSeen,\n botUserId,\n });\n\n if (latestId && latestId !== lastSeen) {\n state[channelId] = latestId;\n hasChanges = true;\n }\n\n if (responded.length > 0) {\n console.log(\n `[discord-nitter-bot] posted ${responded.length} mirror(s) in channel ${channelId}`,\n );\n }\n }\n\n if (hasChanges) {\n await blob.setJSON(STATE_KEY, state);\n }\n}\n\nasync function processChannel(opts: {\n channelId: string;\n token: string;\n lastSeen?: string;\n botUserId: string | null;\n}): Promise<{ latestId?: string; responded: string[] }> {\n let pageAfter = opts.lastSeen;\n let latestId = opts.lastSeen;\n const responded: string[] = [];\n\n for (;;) {\n const messages = await fetchMessages({\n channelId: opts.channelId,\n token: opts.token,\n after: pageAfter,\n });\n\n if (messages.length === 0) break;\n\n messages.sort((a, b) => compareSnowflakes(a.id, b.id));\n\n for (const message of messages) {\n latestId = message.id;\n\n if (!shouldProcessMessage(message, opts.botUserId)) continue;\n\n const rewrites = extractNitterRewrites(message.content);\n if (rewrites.length === 0) continue;\n\n const payload = buildReplyContent(message, rewrites);\n const sent = await sendReply({\n channelId: opts.channelId,\n messageId: message.id,\n token: opts.token,\n content: payload,\n mentionUserId: message.author.id,\n });\n\n if (sent) {\n responded.push(message.id);\n }\n }\n\n pageAfter = latestId;\n\n if (messages.length < 100) {\n break;\n }\n }\n\n return { latestId, responded };\n}\n\nfunction shouldProcessMessage(message: DiscordMessage, botUserId: string | null) {\n if (!message.content) return false;\n if (message.author?.bot) return false;\n if (botUserId && message.author?.id === botUserId) return false;\n return true;\n}\n\nasync function fetchMessages(opts: {\n channelId: string;\n token: string;\n after?: string;\n}): Promise {\n const params = new URLSearchParams({ limit: \"100\" });\n if (opts.after) params.set(\"after\", opts.after);\n\n const response = await fetch(\n `${DISCORD_API}/channels/${opts.channelId}/messages?${params.toString()}`,\n {\n headers: {\n Authorization: `Bot ${opts.token}`,\n },\n },\n );\n\n if (response.status === 429) {\n const retry = Number(response.headers.get(\"retry-after\") ?? \"1\") * 1000;\n console.warn(\n `[discord-nitter-bot] rate limited fetching messages; retrying after ${retry}ms`,\n );\n await delay(retry);\n return fetchMessages(opts);\n }\n\n if (!response.ok) {\n const text = await response.text();\n throw new Error(\n `Failed to fetch messages for channel ${opts.channelId}: ${response.status} ${text}`,\n );\n }\n\n const data = await response.json();\n return Array.isArray(data) ? data as DiscordMessage[] : [];\n}\n\nasync function sendReply(opts: {\n channelId: string;\n messageId: string;\n token: string;\n content: string;\n mentionUserId: string;\n}): Promise {\n const response = await fetch(\n `${DISCORD_API}/channels/${opts.channelId}/messages`,\n {\n method: \"POST\",\n headers: {\n Authorization: `Bot ${opts.token}`,\n \"Content-Type\": \"application/json\",\n },\n body: JSON.stringify({\n content: opts.content,\n message_reference: { message_id: opts.messageId },\n allowed_mentions: { users: [opts.mentionUserId] },\n }),\n },\n );\n\n if (response.status === 429) {\n const retry = Number(response.headers.get(\"retry-after\") ?? \"1\") * 1000;\n console.warn(\n `[discord-nitter-bot] rate limited sending reply; retrying after ${retry}ms`,\n );\n await delay(retry);\n return sendReply(opts);\n }\n\n if (!response.ok) {\n const text = await response.text();\n console.error(\n `Failed to send reply for message ${opts.messageId}: ${response.status} ${text}`,\n );\n return false;\n }\n\n return true;\n}\n\nfunction buildReplyContent(message: DiscordMessage, rewrites: LinkRewrite[]): string {\n const links = rewrites.map((rewrite) => rewrite.rewritten);\n const plural = links.length > 1 ? \"s\" : \"\";\n const bullets = links.map((link) => `• ${link}`).join(\"\\n\");\n return `<@${message.author.id}> mirror${plural}:\\n${bullets}`;\n}\n\nasync function readState(): Promise {\n try {\n const existing = await blob.getJSON(STATE_KEY);\n if (!existing || typeof existing !== \"object\") return {};\n return existing;\n } catch (error) {\n if (isNotFound(error)) {\n return {};\n }\n throw error;\n }\n}\n\nfunction parseChannelIds(value: string | undefined | null): string[] {\n if (!value) return [];\n return value.split(\",\").map((id) => id.trim()).filter(Boolean);\n}\n\nfunction compareSnowflakes(a: string, b: string): number {\n const bigintA = BigInt(a);\n const bigintB = BigInt(b);\n if (bigintA === bigintB) return 0;\n return bigintA < bigintB ? 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