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Val Town Deployment Summary\n\n## Overview\n\n- **Name**: roop/eventsCalendar\n- **Description**: Extract calendar events from webpages\n- **Privacy**: Public\n- **Created**: September 7, 2025\n- **Branch**: main (single branch)\n- **View on Val Town**: https://www.val.town/x/roop/eventsCalendar/code/\n\n## Deployed Files\n\n### HTTP Endpoints\n\n#### 1. server.ts (v407)\n\nMain API endpoint for extracting event data from webpages.\n\n- **URL**: https://extract-event-data.val.run/\n- **Type**: HTTP handler\n\n#### 2. tmp.ts (v414)\n\nTemporary/test endpoint for development purposes.\n\n- **URL**: https://roop--1b476bc2936211f080bb0224a6c84d84.web.val.run\n- **Type**: HTTP handler\n\n#### 3. logs.tsx (v405)\n\nWeb-based logs viewer for monitoring application activity.\n\n- **URL**: https://roop--366aba2a8c1011f095d10224a6c84d84.web.val.run\n- **Type**: HTTP handler (TSX)\n\n### Supporting Files\n\n- **README.md** (v395) - Project documentation\n- **migration.ts** (v227) - Database migration script\n- **deno.json** (v364) - Deno configuration and dependencies\n- **AGENTS.md** (v366) - Agent-related documentation\n- **.vtignore** (v365) - Val Town ignore patterns\n- **lib/** (v108) - Library/utility directory\n\n## Additional Resources\n\n- **Val Town Profile**: https://www.val.town/u/roop\n- **API Documentation**: https://api.val.town/v2/vals/4cbcd1ae-8b94-11f0-b01a-0224a6c84d84\n\n## Notes\n\n- All endpoints are publicly accessible\n- The val runs on Val Town's Deno runtime\n- Version history and commit details available through Val Town interface\n","createdAt",["D",1763261073050],"branchVersion","branchId","4cbd3f86-8b94-11f0-b01a-0224a6c84d84","id","4cbcd1ae-8b94-11f0-b01a-0224a6c84d84","eventsCalendar",["D",1757212950730],"deletedAt","legacyEnvVars","privacy","public","httpPrivacy","description","Extract calendar events from 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ValTown from \"npm:@valtown/sdk\";\nimport { marked } from \"npm:marked\";\n\nexport default async function (req: Request) {\n const vt = new ValTown();\n const val_id = \"4cbcd1ae-8b94-11f0-b01a-0224a6c84d84\";\n const response = await vt.vals.files.getContent(val_id, {\n path: \"README.md\",\n });\n const content = await response.text();\n console.log(content);\n\n const html = marked.parse(content);\n return new Response(html, {\n headers: { \"content-type\": \"text/html\" },\n });\n}","label",[136],"2e98472e-c296-11f0-98d9-42dde27851f2","server.ts","f6895782-8d26-11f0-8563-0224a6c84d84",420,["D",1763261073100],110,"/*\nUse with bookmarklet:\n\njavascript: (function () {\n var HOST = \"https://extract-event-data.val.run\";\n var TOKEN = \"\";\n const currentUrl = encodeURIComponent(window.location.href);\n const requestUrl = `${HOST}/import?url=${currentUrl}&token=${TOKEN}`;\n console.log(requestUrl);\n window.location = requestUrl;\n})();\n*/\n\nimport { Hono } from \"npm:hono@4\";\nimport { SSEStreamingApi, stream, streamSSE } from \"npm:hono@4/streaming\";\nimport { html, raw } from \"npm:hono@4/html\";\nimport process from \"node:process\";\nimport { fetchText } from \"https://esm.town/v/stevekrouse/fetchText?v=6\";\nimport { EventParser } from \"./lib/event-parser.ts\";\nimport { EventInserter } from \"./lib/event-inserter.ts\";\nimport { NotionEventFetcher } from \"./lib/notion-event-fetcher.ts\";\nimport { ICalendarGenerator } from \"./lib/icalendar-generator.ts\";\nimport { sqlite } from \"https://esm.town/v/std/sqlite\";\nimport { pick } from \"npm:lodash-es@4.17.21\";\n\nconst app = new Hono();\n\napp.get(\"/calendar.ics\", async (c) => {\n try {\n // Validate token\n const apiToken = c.req.query(\"token\");\n if (apiToken !== process.env.API_TOKEN) {\n return c.text(\"Unauthorized\", 401);\n }\n\n // Fetch events from Notion (music and lecture categories only)\n const fetcher = new NotionEventFetcher();\n const events = await fetcher.fetchEvents([\"music\", \"lecture\"], 0);\n\n // Generate iCalendar feed\n const generator = new ICalendarGenerator(events, \"NYC Events\");\n const icsContent = generator.generate();\n\n // Return with proper headers\n c.header(\"Content-Type\", \"text/calendar; charset=utf-8\");\n c.header(\"Content-Disposition\", 'inline; filename=\"events.ics\"');\n c.header(\"Cache-Control\", \"public, max-age=3600\"); // Cache for 1 hour\n\n return c.text(icsContent);\n } catch (error) {\n console.error(\"Error generating calendar feed:\", error);\n return c.text(\n `Error generating calendar: ${\n error instanceof Error ? error.message : String(error)\n }`,\n 500\n );\n }\n});\n\napp.get(\"/process-import\", (c) => {\n return streamSSE(c, async (stream) => {\n // validate token\n const apiToken = c.req.query(\"token\");\n if (apiToken !== process.env.API_TOKEN) {\n await fail(stream, \"Unauthorized\");\n return stream.close();\n }\n\n // prepare a log entry for the result\n const result = {\n url: \"\",\n data: \"\",\n response: \"\",\n status: \"\",\n };\n\n // validate url\n const requestedUrl = c.req.query(\"url\");\n result.url = requestedUrl;\n\n console.log(requestedUrl, requestedUrl?.length);\n if (!requestedUrl?.length) {\n result.status = \"400\";\n await fail(stream, \"Missing URL\");\n return stream.close();\n }\n\n if (!URL.canParse(requestedUrl)) {\n result.status = \"422\";\n await fail(stream, \"Invalid URL\");\n return stream.close();\n }\n\n let step;\n try {\n // convert to markdown\n step = \"convert\";\n await update(stream, { step, state: \"started\" });\n const markdown = await fetchText(`https://r.jina.ai/${requestedUrl}`);\n result.status = \"converted\";\n await update(stream, {\n step,\n state: \"completed\",\n result: `${markdown.length} bytes`,\n });\n\n // extract structured data\n step = \"extract\";\n await update(stream, { step, state: \"started\" });\n const data = await EventParser.parseMarkdown(markdown);\n result.status = \"extracted\";\n result.data = JSON.stringify(data);\n await update(stream, {\n step,\n state: \"completed\",\n result: JSON.stringify(data, null, 2),\n });\n // await complete(stream, \"error\")\n\n // insert the event into the notion db\n step = \"insert\";\n await update(stream, { step, state: \"started\" });\n const notionResponse = await EventInserter.insert(data);\n const response = pick(notionResponse, [\n \"id\",\n \"created_time\",\n \"url\",\n \"public_url\",\n ]);\n result.status = \"inserted\";\n result.response = JSON.stringify(response);\n await update(stream, { step, state: \"completed\", result: response.url });\n await complete(stream, \"success\");\n } catch (error) {\n console.error(error);\n console.error(error.message);\n console.error(error.toString());\n result.status = \"errored\";\n await update(stream, { step, state: \"errored\", result: error.message });\n await complete(stream, \"error\");\n } finally {\n stream.close();\n // log the result in sqlite `calendar_parsing_logs` table\n await sqlite.execute({\n sql:\n `insert into calendar_parsing_logs (url, data, response, status) values (:url, :data, :response, :status)`,\n args: result,\n });\n }\n });\n});\n\napp.get(\"/import\", (c) => {\n const url = c.req.query(\"url\");\n\n return c.html(\n html`\n \n \n Test Site\n \n\n \n \n \n

${url}

\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n

⚪️	Converting
⚪️	Extracting
⚪️	Inserting

\n \n \n `,\n );\n});\n\nfunction update(stream: SSEStreamingApi, payload: any) {\n return stream.writeSSE({\n event: \"update\",\n data: JSON.stringify({\n time: new Date().toISOString(),\n ...payload,\n }),\n });\n}\n\nfunction complete(\n stream: SSEStreamingApi,\n state: \"success\" | \"error\",\n) {\n return stream.writeSSE({\n event: \"complete\",\n data: JSON.stringify({\n time: new Date().toISOString(),\n state,\n }),\n });\n}\n\nfunction fail(\n stream: SSEStreamingApi,\n message?: string,\n) {\n return stream.writeSSE({\n event: \"fail\",\n data: JSON.stringify({\n time: new Date().toISOString(),\n message,\n }),\n });\n}\n\nexport default app.fetch;","extract-event-data",[148],"7dca4e50-8c18-11f0-ac7d-0224a6c84d84","migration.ts","365334f8-8c11-11f0-a545-0224a6c84d84",227,["D",1757269726587],8,"script","import { sqlite } from \"https://esm.town/v/std/sqlite\";\n\nif (false) {\n await sqlite.execute(`\n drop table calendar_parsing_logs;\n`);\n await sqlite.execute(`\n create table calendar_parsing_logs (\n id INTEGER PRIMARY KEY AUTOINCREMENT,\n created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,\n url TEXT NOT NULL,\n data TEXT,\n response TEXT,\n status TEXT\n );\n`);\n}",[157],"db1b0ada-9362-11f0-bc41-0224a6c84d84","logs.tsx",405,["D",1758071324041],55,"/** @jsxImportSource https://esm.sh/react */\nimport { renderToString } from \"npm:react-dom/server\";\nimport { sqlite } from \"https://esm.town/v/std/sqlite\";\n\nconst Row = (props) => {\n const { row } = props;\n const [id, created_at, url, data, response, status] = row;\n return (\n \n {id}\n {created_at}\n {url}\n {data}\n {response}\n {status}\n \n );\n};\n\nexport const dashboard = async (req) => {\n const token = new URL(req.url).searchParams.get(\"token\");\n if (token !== process.env.API_TOKEN) {\n return new Response(\"Token required to view logs\", { status: 403 });\n }\n\n const data = await sqlite.execute(\n `select * from calendar_parsing_logs order by created_at desc`,\n );\n\n const styles = `\n table tr { vertical-align: top; }\n table th, table td { padding: 0.25em; }\n table tbody tr:nth-child(odd) { background: #fafafa; }\n table tbody tr:nth-child(even) { background: #f2f2f2; }\n `;\n\n return new Response(\n renderToString(\n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n \n {data.rows.map((row) => )}\n \n

ID	Created at	URL	Data	Response	Status

\n \n ,\n ),\n { headers: { \"Content-Type\": \"text/html\" } },\n );\n};",[166],"29a262d2-8f8c-11f0-975f-0224a6c84d84","deno.json","29a26462-8f8c-11f0-975f-0224a6c84d84",364,["D",1757649260500],"{\n \"$schema\": \"https://raw.githubusercontent.com/denoland/deno/348900b8b79f4a434cab4c74b3bc8d4d2fa8ee74/cli/schemas/config-file.v1.json\",\n \"lock\": false,\n \"compilerOptions\": {\n \"noImplicitAny\": false,\n \"strict\": false,\n \"types\": [\n \"https://www.val.town/types/valtown.d.ts\"\n ],\n \"lib\": [\n \"dom\",\n \"dom.iterable\",\n \"dom.asynciterable\",\n \"deno.ns\",\n \"deno.unstable\"\n ]\n },\n \"lint\": {\n \"files\": {\n \"include\": [\n \"deno:/https/esm.town/**/*\"\n ]\n },\n \"rules\": {\n \"exclude\": [\n \"no-explicit-any\"\n ]\n }\n },\n \"node_modules_dir\": false,\n \"experimental\": {\n \"unstable-node-globals\": true,\n \"unstable-temporal\": true,\n \"unstable-worker-options\": true,\n \"unstable-sloppy-imports\": true\n }\n}",[173],"2e8e2276-c296-11f0-9be9-42dde27851f2","README.md","ce5b0e4a-8cb3-11f0-9d49-0224a6c84d84",417,["D",1763261073035],18,"# eventsCalendar\n\nFor a while I have been using a personal Notion db to\n[track](https://roops.notion.site/110434d3fdeb80079596dfe12abff486?v=160434d3fdeb804f9f7d000c3e851953)\ninteresting art/music/etc events that are upcoming in NYC.\n\nI grew tired of manually entering the time/place/other info into Notion. So I\nmade this Val to serve as the backend for a bookmarklet — now I have one-click\nability to munge an arbitrary event webpage → structured data → Notion db.\n\n![seq6.png](https://imagedelivery.net/iHX6Ovru0O7AjmyT5yZRoA/a3ae2e63-e781-4d81-835b-42ae1ba30700/public)\n\n[(source)](https://mermaid.live/edit#pako:eNplkt1um0AQRl9lNFetAm4cjKGoddWfqGqkJpFi9aLiZg1jTMPukN2hbmr53bsbnLSN2Qt24TtzZgQ7rLgmLNDR3UCmok-taqzSpQF_fWC-1crediTxYnHyTXWw5K0p4PP5El69G2z39o1jTUA_yQhsadWrhhYj_JgO5EVrlKdIQDYEnoOKjQRGOQiG2gdHLERjz8R_bV8PgSdozXZUHpuuejLvv3jX9TJOY6MMw7aVDbh7J6Sht6x7gZNDx_-rR_aZ3IkdKhks1VArUfDi4ubqEnj1Y6wrrXQUhZGi8N5vSaqXx31dsrTsy7XGkRV_E4bz0IODejXGx8gzvSU3dMdz_pPouDmkwNd0d10rVBqMsLFtjYVvnyLUZLUKR9yFWiX676CpxMJva1qr4MDS7D3WK_OdWT-Slodmg8Vadc6fhj4MefhJnp5aMjXZjzwYwWI2faiBxQ5_YTGdzydJliZJOsv9Ss7yCO-xyLNJPpumZ8k8y7PXp_l8H-HvB-vpJM_S_R_n7te3)\n\n## Calendar Subscription\n\nYou can subscribe to your events in Calendar.app (macOS/iOS) or any other calendar application that supports iCalendar feeds.\n\n### How to Subscribe\n\n1. **Get your calendar feed URL:**\n ```\n https://extract-event-data.val.run/calendar.ics?token=YOUR_API_TOKEN\n ```\n Replace `YOUR_API_TOKEN` with your API token (same token used for the bookmarklet).\n\n2. **Subscribe in Calendar.app (macOS):**\n - Open Calendar.app\n - Go to **File > New Calendar Subscription...**\n - Paste the calendar feed URL\n - Click **Subscribe**\n - Configure update frequency (recommended: Every hour)\n - Choose which calendar to add it to\n - Click **OK**\n\n3. **Subscribe on iOS:**\n - Go to **Settings > Calendar > Accounts > Add Account**\n - Select **Other**\n - Tap **Add Subscribed Calendar**\n - Paste the calendar feed URL\n - Tap **Next** and then **Save**\n\n### What Gets Synced\n\n- Only events with categories: **music** and **lecture**\n- Only future events (past events are excluded)\n- Updates automatically based on your calendar app's refresh settings\n\n### Making the Calendar Public\n\nCurrently the calendar requires your API token for access. To make it public in the future:\n\n1. Open [server.ts](server.ts)\n2. Find the `/calendar.ics` endpoint (around line 28)\n3. Remove or comment out the token validation block:\n ```typescript\n // Remove these lines:\n const apiToken = c.req.query(\"token\");\n if (apiToken !== process.env.API_TOKEN) {\n return c.text(\"Unauthorized\", 401);\n }\n ```\n4. The calendar feed will then be accessible without a token",[180],"2e94cda6-c296-11f0-8638-42dde27851f2","AGENTS.md","29ba2d22-8f8c-11f0-9591-0224a6c84d84",419,["D",1763261073080],1,"You are an advanced assistant specialized in generating Val Town code.\n\nFor information specific to this project, see docs/VALTOWN.md.\n\nFor general information see below.\n\n## Core Guidelines\n\n- Ask clarifying questions when requirements are ambiguous\n- Provide complete, functional solutions rather than skeleton implementations\n- Test your logic against edge cases before presenting the final solution\n- Ensure all code follows Val Town's specific platform requirements\n- If a section of code that you're working on is getting too complex, consider refactoring it into subcomponents\n\n## Code Standards\n\n- Generate code in TypeScript or TSX\n- Add appropriate TypeScript types and interfaces for all data structures\n- Prefer official SDKs or libraries than writing API calls directly\n- Ask the user to supply API or library documentation if you are at all unsure about it\n- **Never bake in secrets into the code** - always use environment variables\n- Include comments explaining complex logic (avoid commenting obvious operations)\n- Follow modern ES6+ conventions and functional programming practices if possible\n\n## Types of triggers\n\n### 1. HTTP Trigger\n\n- Create web APIs and endpoints\n- Handle HTTP requests and responses\n- Example structure:\n\n```ts\nexport default async function (req: Request) {\n return new Response(\"Hello World\");\n}\n```\n\nFiles that are HTTP triggers have http in their name like `foobar.http.tsx`\n\n### 2. Cron Triggers\n\n- Run on a schedule\n- Use cron expressions for timing\n- Example structure:\n\n```ts\nexport default async function () {\n // Scheduled task code\n}\n```\n\nFiles that are Cron triggers have cron in their name like `foobar.cron.tsx`\n\n### 3. Email Triggers\n\n- Process incoming emails\n- Handle email-based workflows\n- Example structure:\n\n```ts\nexport default async function (email: Email) {\n // Process email\n}\n```\n\nFiles that are Email triggers have email in their name like `foobar.email.tsx`\n\n## Val Town Standard Libraries\n\nVal Town provides several hosted services and utility functions.\n\n### Blob Storage\n\n```ts\nimport { blob } from \"https://esm.town/v/std/blob\";\nawait blob.setJSON(\"myKey\", { hello: \"world\" });\nlet blobDemo = await blob.getJSON(\"myKey\");\nlet appKeys = await blob.list(\"app_\");\nawait blob.delete(\"myKey\");\n```\n\n### SQLite\n\n```ts\nimport { sqlite } from \"https://esm.town/v/stevekrouse/sqlite\";\nconst TABLE_NAME = \"todo_app_users_2\";\n// Create table - do this before usage and change table name when modifying schema\nawait sqlite.execute(`CREATE TABLE IF NOT EXISTS ${TABLE_NAME} (\n id INTEGER PRIMARY KEY AUTOINCREMENT,\n name TEXT NOT NULL\n)`);\n// Query data\nconst result = await sqlite.execute(\n `SELECT * FROM ${TABLE_NAME} WHERE id = ?`,\n [1]\n);\n```\n\nNote: When changing a SQLite table's schema, change the table's name (e.g., add \\_2 or \\_3) to create a fresh table.\n\n### OpenAI\n\n```ts\nimport { OpenAI } from \"https://esm.town/v/std/openai\";\nconst openai = new OpenAI();\nconst completion = await openai.chat.completions.create({\n messages: [{ role: \"user\", content: \"Say hello in a creative way\" }],\n model: \"gpt-4o-mini\",\n max_tokens: 30,\n});\n```\n\n### Email\n\n```ts\nimport { email } from \"https://esm.town/v/std/email\";\n// By default emails the owner of the val\nawait email({\n subject: \"Hi\",\n text: \"Hi\",\n html: \"

Hi

\",\n});\n```\n\n## Val Town Utility Functions\n\nVal Town provides several utility functions to help with common project tasks.\n\n### Importing Utilities\n\nAlways import utilities with version pins to avoid breaking changes:\n\n```ts\nimport {\n parseProject,\n readFile,\n serveFile,\n} from \"https://esm.town/v/std/utils@85-main/index.ts\";\n```\n\n### Available Utilities\n\n#### **serveFile** - Serve project files with proper content types\n\nFor example, in Hono:\n\n```ts\n// serve all files in frontend/ and shared/\napp.get(\"/frontend/*\", (c) => serveFile(c.req.path, import.meta.url));\napp.get(\"/shared/*\", (c) => serveFile(c.req.path, import.meta.url));\n```\n\n#### **readFile** - Read files from within the project:\n\n```ts\n// Read a file from the project\nconst fileContent = await readFile(\"/frontend/index.html\", import.meta.url);\n```\n\n#### **listFiles** - List all files in the project\n\n```ts\nconst files = await listFiles(import.meta.url);\n```\n\n#### **parseProject** - Extract information about the current project from import.meta.url\n\nThis is useful for including info for linking back to a val, ie in \"view source\" urls:\n\n```ts\nconst projectVal = parseProject(import.meta.url);\nconsole.log(projectVal.username); // Owner of the project\nconsole.log(projectVal.name); // Project name\nconsole.log(projectVal.version); // Version number\nconsole.log(projectVal.branch); // Branch name\nconsole.log(projectVal.links.self.project); // URL to the project page\n```\n\nHowever, it's _extremely importing_ to note that `parseProject` and other Standard Library utilities ONLY RUN ON THE SERVER.\nIf you need access to this data on the client, run it in the server and pass it to the client by splicing it into the HTML page\nor by making an API request for it.\n\n## Val Town Platform Specifics\n\n- **Redirects:** Use `return new Response(null, { status: 302, headers: { Location: \"/place/to/redirect\" }})` instead of `Response.redirect` which is broken\n- **Images:** Avoid external images or base64 images. Use emojis, unicode symbols, or icon fonts/libraries instead\n- **AI Image:** To inline generate an AI image use: `

`\n- **Storage:** DO NOT use the Deno KV module for storage\n- **Browser APIs:** DO NOT use the `alert()`, `prompt()`, or `confirm()` methods\n- **Weather Data:** Use open-meteo for weather data (doesn't require API keys) unless otherwise specified\n- **View Source:** Add a view source link by importing & using `import.meta.url.replace(\"ems.sh\", \"val.town)\"` (or passing this data to the client) and include `target=\"_top\"` attribute\n- **Error Debugging:** Add `` to HTML to capture client-side errors\n- **Error Handling:** Only use try...catch when there's a clear local resolution; Avoid catches that merely log or return 500s. Let errors bubble up with full context\n- **Environment Variables:** Use `Deno.env.get('keyname')` when you need to, but generally prefer APIs that don't require keys\n- **Imports:** Use `https://esm.sh` for npm and Deno dependencies to ensure compatibility on server and browser\n- **Storage Strategy:** Only use backend storage if explicitly required; prefer simple static client-side sites\n- **React Configuration:** When using React libraries, pin versions with `?deps=react@18.2.0,react-dom@18.2.0` and start the file with `/** @jsxImportSource https://esm.sh/react@18.2.0 */`\n- Ensure all React dependencies and sub-dependencies are pinned to the same version\n- **Styling:** Default to using TailwindCSS via `` unless otherwise specified\n\n## Project Structure and Design Patterns\n\n### Recommended Directory Structure\n\n```\n├── backend/\n│ ├── database/\n│ │ ├── migrations.ts # Schema definitions\n│ │ ├── queries.ts # DB query functions\n│ │ └── README.md\n│ └── routes/ # Route modules\n│ ├── [route].ts\n│ └── static.ts # Static file serving\n│ ├── index.ts # Main entry point\n│ └── README.md\n├── frontend/\n│ ├── components/\n│ │ ├── App.tsx\n│ │ └── [Component].tsx\n│ ├── favicon.svg\n│ ├── index.html # Main HTML template\n│ ├── index.tsx # Frontend JS entry point\n│ ├── README.md\n│ └── style.css\n├── README.md\n└── shared/\n ├── README.md\n └── utils.ts # Shared types and functions\n```\n\n### Backend (Hono) Best Practices\n\n- Hono is the recommended API framework\n- Main entry point should be `backend/index.ts`\n- **Static asset serving:** Use the utility functions to read and serve project files:\n\n ```ts\n import {\n readFile,\n serveFile,\n } from \"https://esm.town/v/std/utils@85-main/index.ts\";\n\n // serve all files in frontend/ and shared/\n app.get(\"/frontend/*\", (c) => serveFile(c.req.path, import.meta.url));\n app.get(\"/shared/*\", (c) => serveFile(c.req.path, import.meta.url));\n\n // For index.html, often you'll want to bootstrap with initial data\n app.get(\"/\", async (c) => {\n let html = await readFile(\"/frontend/index.html\", import.meta.url);\n\n // Inject data to avoid extra round-trips\n const initialData = await fetchInitialData();\n const dataScript = ``;\n\n html = html.replace(\"\", `${dataScript}`);\n return c.html(html);\n });\n ```\n\n- Create RESTful API routes for CRUD operations\n- Always include this snippet at the top-level Hono app to re-throwing errors to see full stack traces:\n ```ts\n // Unwrap Hono errors to see original error details\n app.onError((err, c) => {\n throw err;\n });\n ```\n\n### Database Patterns\n\n- Run migrations on startup or comment out for performance\n- Change table names when modifying schemas rather than altering\n- Export clear query functions with proper TypeScript typing\n\n## Common Gotchas and Solutions\n\n1. **Environment Limitations:**\n\n - Val Town runs on Deno in a serverless context, not Node.js\n - Code in `shared/` must work in both frontend and backend environments\n - Cannot use `Deno` keyword in shared code\n - Use `https://esm.sh` for imports that work in both environments\n\n2. **SQLite Peculiarities:**\n\n - Limited support for ALTER TABLE operations\n - Create new tables with updated schemas and copy data when needed\n - Always run table creation before querying\n\n3. **React Configuration:**\n\n - All React dependencies must be pinned to 18.2.0\n - Always include `@jsxImportSource https://esm.sh/react@18.2.0` at the top of React files\n - Rendering issues often come from mismatched React versions\n\n4. **File Handling:**\n\n - Val Town only supports text files, not binary\n - Use the provided utilities to read files across branches and forks\n - For files in the project, use `readFile` helpers\n\n5. **API Design:**\n - `fetch` handler is the entry point for HTTP vals\n - Run the Hono app with `export default app.fetch // This is the entry point for HTTP vals`\n",[188],"29ac4040-8f8c-11f0-8f26-0224a6c84d84",".vtignore","29ac40fe-8f8c-11f0-8f26-0224a6c84d84",365,["D",1757649260500],".git\n.vscode\n.cursorrules\n.DS_Store\nnode_modules\nvendor",[196],"8466b9c0-8ba9-11f0-893f-0224a6c84d84","lib","82ddf258-8ba9-11f0-893f-0224a6c84d84",108,["D",1757222063541],"directory",[203],"2e7abd62-c296-11f0-98d9-42dde27851f2","docs","2e7abe16-c296-11f0-98d9-42dde27851f2",415,["D",1763261072910],[210],"pulls","branches","forks","envVars",{"_222":224,"_225":61},"connections",{"_222":61,"_223":61},"count","unfilledCount",4,"emptyCount",{"_41":209,"_31":210,"_29":211,"_138":-5,"_39":40,"_38":212,"_140":57,"_36":316,"_13":61,"_33":207,"_34":-5,"_23":24,"_145":-5,"_243":317,"_26":318},{"_41":312,"_31":32,"_29":30,"_138":211,"_39":40,"_38":14,"_140":57,"_36":313,"_13":61,"_33":20,"_34":35,"_23":24,"_145":-5,"_243":314,"_26":315},{"_41":202,"_31":203,"_29":204,"_138":-5,"_39":40,"_38":205,"_140":57,"_36":309,"_13":192,"_33":207,"_34":-5,"_23":24,"_145":-5,"_243":310,"_26":311},{"_41":301,"_31":302,"_29":303,"_138":204,"_39":40,"_38":304,"_140":57,"_36":305,"_13":161,"_33":162,"_34":306,"_23":24,"_145":-5,"_243":307,"_26":308},{"_41":292,"_31":293,"_29":294,"_138":204,"_39":40,"_38":295,"_140":57,"_36":296,"_13":297,"_33":162,"_34":298,"_23":24,"_145":-5,"_243":299,"_26":300},{"_41":283,"_31":284,"_29":285,"_138":204,"_39":40,"_38":286,"_140":57,"_36":287,"_13":288,"_33":162,"_34":289,"_23":24,"_145":-5,"_243":290,"_26":291},{"_41":275,"_31":276,"_29":277,"_138":204,"_39":40,"_38":278,"_140":57,"_36":279,"_13":61,"_33":162,"_34":280,"_23":24,"_145":-5,"_243":281,"_26":282},{"_41":267,"_31":268,"_29":269,"_138":204,"_39":40,"_38":270,"_140":24,"_36":271,"_13":61,"_33":162,"_34":272,"_23":24,"_145":-5,"_243":273,"_26":274},{"_41":195,"_31":196,"_29":197,"_138":-5,"_39":40,"_38":198,"_140":57,"_36":264,"_13":61,"_33":20,"_34":200,"_23":24,"_145":-5,"_243":265,"_26":266},{"_41":187,"_31":188,"_29":189,"_138":-5,"_39":40,"_38":190,"_140":57,"_36":261,"_13":192,"_33":20,"_34":193,"_23":24,"_145":-5,"_243":262,"_26":263},{"_41":179,"_31":180,"_29":181,"_138":-5,"_39":40,"_38":182,"_140":57,"_36":258,"_13":184,"_33":20,"_34":185,"_23":24,"_145":-5,"_243":259,"_26":260},{"_41":172,"_31":173,"_29":174,"_138":-5,"_39":40,"_38":175,"_140":57,"_36":255,"_13":61,"_33":20,"_34":177,"_23":24,"_145":-5,"_243":256,"_26":257},{"_41":165,"_31":166,"_29":55,"_138":-5,"_39":40,"_38":167,"_140":57,"_36":252,"_13":169,"_33":143,"_34":170,"_23":24,"_145":-5,"_243":253,"_26":254},{"_41":156,"_31":157,"_29":158,"_138":-5,"_39":40,"_38":159,"_140":57,"_36":249,"_13":161,"_33":162,"_34":163,"_23":24,"_145":-5,"_243":250,"_26":251},{"_41":147,"_31":148,"_29":149,"_138":-5,"_39":40,"_38":150,"_140":24,"_36":246,"_13":152,"_33":143,"_34":153,"_23":24,"_145":154,"_243":247,"_26":248},{"_41":135,"_31":136,"_29":137,"_138":-5,"_39":40,"_38":139,"_140":57,"_36":242,"_13":142,"_33":143,"_34":144,"_23":24,"_145":-5,"_243":244,"_26":245},["D",1758071790335],"children",[],[136],["D",1763261073100],[],[148],["D",1757269726587],[],[157],["D",1758071324041],[],[166],["D",1757649260500],[],[173],["D",1763261073035],[],[180],["D",1763261073080],[],[188],["D",1757649260500],[],[196],"2e9122b4-c296-11f0-bdbc-42dde27851f2","notion-event-fetcher.ts","2e912372-c296-11f0-bdbc-42dde27851f2",418,["D",1763261073057],"import { Client } from \"npm:@notionhq/client\";\nimport process from \"node:process\";\nimport type { EventData } from \"./event.ts\";\n\n/**\n * Fetches events from Notion database and converts them to EventData format\n */\nexport class NotionEventFetcher {\n private notion: Client;\n\n constructor() {\n this.notion = new Client({ auth: process.env.NOTION_KEY });\n }\n\n /**\n * Fetch events filtered by categories and date\n * @param categories - Array of categories to include (e.g., [\"music\", \"lecture\"])\n * @param includePastDays - How many days in the past to include (default: 0 = future only)\n */\n async fetchEvents(\n categories: string[] = [\"music\", \"lecture\"],\n includePastDays: number = 0\n ): Promise {\n const cutoffDate = new Date();\n cutoffDate.setDate(cutoffDate.getDate() - includePastDays);\n const cutoffISO = cutoffDate.toISOString().split(\"T\")[0]; // YYYY-MM-DD\n\n try {\n // Query the Notion database\n const response = await this.notion.databases.query({\n database_id: process.env.NOTION_DATA_SOURCE_ID!,\n filter: {\n and: [\n {\n property: \"Date\",\n date: {\n on_or_after: cutoffISO,\n },\n },\n {\n or: categories.map((category) => ({\n property: \"Category\",\n select: {\n equals: category,\n },\n })),\n },\n ],\n },\n sorts: [\n {\n property: \"Date\",\n direction: \"ascending\",\n },\n ],\n });\n\n // Convert Notion pages to EventData\n const events: EventData[] = [];\n\n for (const page of response.results) {\n if (!(\"properties\" in page)) continue;\n\n const props = page.properties;\n\n // Extract title\n let title = \"Untitled Event\";\n if (props.Name?.type === \"title\" && props.Name.title.length > 0) {\n title = props.Name.title[0].plain_text;\n }\n\n // Extract URL\n let url = \"\";\n if (props.URL?.type === \"url\" && props.URL.url) {\n url = props.URL.url;\n }\n\n // Extract dates\n let startDate = \"\";\n let endDate: string | undefined = undefined;\n if (props.Date?.type === \"date\" && props.Date.date) {\n startDate = props.Date.date.start;\n if (props.Date.date.end) {\n endDate = props.Date.date.end;\n }\n }\n\n // Skip events without a start date\n if (!startDate) continue;\n\n // Extract description/notes\n let description = \"\";\n if (\n props.Notes?.type === \"rich_text\" &&\n props.Notes.rich_text.length > 0\n ) {\n description = props.Notes.rich_text\n .map((rt: any) => rt.plain_text)\n .join(\"\");\n }\n\n // Extract category\n let category = \"unknown\";\n if (props.Category?.type === \"select\" && props.Category.select) {\n category = props.Category.select.name;\n }\n\n // Extract venue if it exists\n let venue = \"\";\n if (\n props.Venue?.type === \"rich_text\" &&\n props.Venue.rich_text.length > 0\n ) {\n venue = props.Venue.rich_text.map((rt: any) => rt.plain_text).join(\n \"\"\n );\n }\n\n events.push({\n title,\n venue,\n startDate,\n endDate,\n url,\n description,\n category: category as EventData[\"category\"],\n });\n }\n\n return events;\n } catch (error) {\n console.error(\"Error fetching events from Notion:\", error);\n throw new Error(\n `Failed to fetch events from Notion: ${\n error instanceof Error ? error.message : String(error)\n }`\n );\n }\n }\n}\n",[],[203,268],"2e87def2-c296-11f0-98d9-42dde27851f2","icalendar-generator.ts","2e87dfa6-c296-11f0-98d9-42dde27851f2",416,["D",1763261072997],"import type { EventData } from \"./event.ts\";\n\n/**\n * Generates an RFC 5545 compliant iCalendar (.ics) file from event data\n */\nexport class ICalendarGenerator {\n private events: EventData[];\n private calendarName: string;\n private timezone: string;\n\n constructor(\n events: EventData[],\n calendarName = \"NYC Events\",\n timezone = \"America/New_York\"\n ) {\n this.events = events;\n this.calendarName = calendarName;\n this.timezone = timezone;\n }\n\n /**\n * Generate the complete iCalendar string\n */\n generate(): string {\n const lines: string[] = [\n \"BEGIN:VCALENDAR\",\n \"VERSION:2.0\",\n \"PRODID:-//Events Calendar//Val Town//EN\",\n `X-WR-CALNAME:${this.escapeText(this.calendarName)}`,\n `X-WR-TIMEZONE:${this.timezone}`,\n \"CALSCALE:GREGORIAN\",\n \"METHOD:PUBLISH\",\n ];\n\n // Add timezone definition\n lines.push(...this.generateTimezoneComponent());\n\n // Add each event\n for (const event of this.events) {\n lines.push(...this.generateEventComponent(event));\n }\n\n lines.push(\"END:VCALENDAR\");\n\n return this.foldLines(lines.join(\"\\r\\n\"));\n }\n\n /**\n * Generate VTIMEZONE component for Eastern Time\n */\n private generateTimezoneComponent(): string[] {\n return [\n \"BEGIN:VTIMEZONE\",\n \"TZID:America/New_York\",\n \"BEGIN:DAYLIGHT\",\n \"TZOFFSETFROM:-0500\",\n \"TZOFFSETTO:-0400\",\n \"TZNAME:EDT\",\n \"DTSTART:19700308T020000\",\n \"RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=2SU\",\n \"END:DAYLIGHT\",\n \"BEGIN:STANDARD\",\n \"TZOFFSETFROM:-0400\",\n \"TZOFFSETTO:-0500\",\n \"TZNAME:EST\",\n \"DTSTART:19701101T020000\",\n \"RRULE:FREQ=YEARLY;BYMONTH=11;BYDAY=1SU\",\n \"END:STANDARD\",\n \"END:VTIMEZONE\",\n ];\n }\n\n /**\n * Generate a VEVENT component for a single event\n */\n private generateEventComponent(event: EventData): string[] {\n const lines: string[] = [\"BEGIN:VEVENT\"];\n\n // Generate unique ID based on URL and title\n const uid = this.generateUID(event);\n lines.push(`UID:${uid}`);\n\n // Add timestamps\n const now = new Date();\n lines.push(`DTSTAMP:${this.formatDateTime(now)}`);\n\n // Add event details\n lines.push(`SUMMARY:${this.escapeText(event.title)}`);\n\n if (event.venue) {\n lines.push(`LOCATION:${this.escapeText(event.venue)}`);\n }\n\n if (event.description) {\n lines.push(`DESCRIPTION:${this.escapeText(event.description)}`);\n }\n\n if (event.url) {\n lines.push(`URL:${event.url}`);\n }\n\n // Add category\n if (event.category && event.category !== \"unknown\") {\n lines.push(`CATEGORIES:${event.category.toUpperCase()}`);\n }\n\n // Add dates\n const startDate = new Date(event.startDate);\n const isAllDay = this.isAllDayEvent(event.startDate);\n\n if (isAllDay) {\n // All-day event (DATE format)\n lines.push(`DTSTART;VALUE=DATE:${this.formatDate(startDate)}`);\n if (event.endDate) {\n const endDate = new Date(event.endDate);\n // For all-day events, end date is exclusive, so add 1 day\n endDate.setDate(endDate.getDate() + 1);\n lines.push(`DTEND;VALUE=DATE:${this.formatDate(endDate)}`);\n }\n } else {\n // Timed event (DATE-TIME format with timezone)\n lines.push(\n `DTSTART;TZID=${this.timezone}:${this.formatDateTime(startDate)}`\n );\n if (event.endDate) {\n const endDate = new Date(event.endDate);\n lines.push(\n `DTEND;TZID=${this.timezone}:${this.formatDateTime(endDate)}`\n );\n } else {\n // Default to 2-hour duration if no end date specified\n const endDate = new Date(startDate.getTime() + 2 * 60 * 60 * 1000);\n lines.push(\n `DTEND;TZID=${this.timezone}:${this.formatDateTime(endDate)}`\n );\n }\n }\n\n lines.push(\"END:VEVENT\");\n return lines;\n }\n\n /**\n * Generate a unique identifier for an event\n */\n private generateUID(event: EventData): string {\n // Create a simple hash from URL and title\n const str = `${event.url}-${event.title}`;\n let hash = 0;\n for (let i = 0; i < str.length; i++) {\n const char = str.charCodeAt(i);\n hash = (hash << 5) - hash + char;\n hash = hash & hash; // Convert to 32-bit integer\n }\n return `${Math.abs(hash)}@valtown.run`;\n }\n\n /**\n * Check if an event is all-day (no time component)\n */\n private isAllDayEvent(dateString: string): boolean {\n // If the date string is just YYYY-MM-DD format or doesn't have time info\n return !dateString.includes(\"T\") || dateString.endsWith(\"T00:00:00\");\n }\n\n /**\n * Format date as YYYYMMDD\n */\n private formatDate(date: Date): string {\n const year = date.getFullYear();\n const month = String(date.getMonth() + 1).padStart(2, \"0\");\n const day = String(date.getDate()).padStart(2, \"0\");\n return `${year}${month}${day}`;\n }\n\n /**\n * Format date-time as YYYYMMDDTHHMMSS\n */\n private formatDateTime(date: Date): string {\n const datePart = this.formatDate(date);\n const hours = String(date.getHours()).padStart(2, \"0\");\n const minutes = String(date.getMinutes()).padStart(2, \"0\");\n const seconds = String(date.getSeconds()).padStart(2, \"0\");\n return `${datePart}T${hours}${minutes}${seconds}`;\n }\n\n /**\n * Escape special characters in text fields\n */\n private escapeText(text: string): string {\n return text\n .replace(/\\\\/g, \"\\\\\\\\\")\n .replace(/;/g, \"\\\\;\")\n .replace(/,/g, \"\\\\,\")\n .replace(/\\n/g, \"\\\\n\")\n .replace(/\\r/g, \"\");\n }\n\n /**\n * Fold long lines to 75 characters per RFC 5545\n */\n private foldLines(text: string): string {\n const lines = text.split(\"\\r\\n\");\n const folded: string[] = [];\n\n for (const line of lines) {\n if (line.length <= 75) {\n folded.push(line);\n } else {\n // Split line into 75-character chunks\n let remaining = line;\n folded.push(remaining.substring(0, 75));\n remaining = remaining.substring(75);\n\n while (remaining.length > 0) {\n // Continuation lines start with a space\n folded.push(\" \" + remaining.substring(0, 74));\n remaining = remaining.substring(74);\n }\n }\n }\n\n return folded.join(\"\\r\\n\");\n }\n}\n",[],[203,276],"9c7947d0-8ba9-11f0-b4f8-0224a6c84d84","event.ts","4371e76e-8b9f-11f0-a6f1-0224a6c84d84",112,["D",1757222103930],34,"import { EventParser } from \"./event-parser.ts\";\nimport { EventInserter } from \"./event-inserter.ts\";\n\n/**\n * Shape of the event data that will be parsed, passed around, and inserted into Notion\n */\nexport type EventData = {\n /** The title of the event */\n title: string;\n\n /** The location of the event, name only */\n venue: string;\n\n /** The start date of the event in ISO8601 format */\n startDate: string;\n\n /** The end date of the event in ISO8601 format, if present */\n endDate?: string;\n\n /** The web page for the event */\n url: string;\n\n /** A summary of the event, in 25 words or less */\n description: string;\n\n /** The category of the event */\n category: \"music\" | \"art\" | \"lecture\" | \"other\" | \"unknown\";\n};\n\n/**\n * Event abstraction, which delegates to others for parsing and inserting event data\n */\nexport class Event {\n data: EventData;\n\n constructor(data: Partial = {}) {\n this.data = {\n title: data.title ?? \"Unknown\",\n venue: data.venue ?? \"Unknown\",\n startDate: data.startDate ?? new Date().toISOString(),\n endDate: data.endDate,\n url: data.url ?? \"https://example.com\",\n description: data.description ?? \"No description available.\",\n category: data.category ?? \"unknown\",\n };\n }\n\n async insert() {\n const response = await EventInserter.insert(this.data);\n return response;\n }\n\n static fromJSON(json: string): Event {\n const data = JSON.parse(json);\n return new Event(data);\n }\n\n static async fromURL(url: string): Promise {\n const data = await EventParser.parse(url);\n return new Event(data);\n }\n}",[],[203,284],"857eca38-8d29-11f0-8e5c-0224a6c84d84","event-parser.ts","3a27f7cc-8ba2-11f0-8aeb-0224a6c84d84",275,["D",1757386992115],24,"import { fetchText } from \"https://esm.town/v/stevekrouse/fetchText?v=6\";\nimport { OpenAI } from \"https://esm.town/v/std/openai\";\nimport type { EventData } from \"./event.ts\";\n\n/**\n * Parse an event webpage into structured data as follows:\n *\n * - Use r.jina.ai to convert the webpage to clean markdown\n * - Supply the markdown to OpenAI using Val Town's client\n * - Prompt LLM for structured output (see EVENT_SCHEMA below)\n */\nexport class EventParser {\n static async parse(url: string): Promise {\n if (!url?.length) {\n throw new Error(\"No URL supplied\");\n }\n const markdown = await fetchText(`https://r.jina.ai/${url}`);\n return this.parseMarkdown(markdown);\n }\n\n static async parseMarkdown(markdown: string): Promise {\n if (!markdown?.length) {\n throw new Error(\"No Markdown supplied\");\n }\n\n const openai = new OpenAI();\n\n const completion = await openai.chat.completions.create({\n model: \"gpt-5-nano\",\n response_format: {\n type: \"json_schema\",\n json_schema: {\n name: \"event\",\n description: \"Event metadata, suitable for adding to a calendar\",\n schema: EVENT_SCHEMA,\n },\n },\n messages: [\n {\n role: \"system\",\n content: `\nYou are a helpful calendar assistant.\n\nYour task is to read a markdown version of an event webpage, and extract structured info.\n\nFor reference, today's date is {(new Date()).toLocaleDateString('en-CA')}\n\nWhen the user supplies the event info, return a JSON object that conforms to the supplied schema.\n `,\n },\n { role: \"user\", content: markdown },\n ],\n });\n\n const content = completion.choices[0].message.content;\n const data = JSON.parse(content);\n\n return data;\n }\n}\n\nconst EVENT_SCHEMA = {\n \"type\": \"object\",\n \"properties\": {\n \"title\": {\n \"type\": \"string\",\n \"description\": \"The title of the event\",\n },\n \"venue\": {\n \"type\": \"string\",\n \"description\": \"The location of the event, name only\",\n },\n \"startDate\": {\n \"type\": \"string\",\n \"format\": \"date-time\",\n \"description\": \"The start date of the event in ISO8601 date-only format\",\n },\n \"endDate\": {\n \"type\": \"string\",\n \"format\": \"date-time\",\n \"description\":\n \"The end date of the event in ISO8601 date-only format (optional)\",\n },\n \"url\": {\n \"type\": \"string\",\n \"format\": \"uri\",\n \"description\": \"The web page for the event\",\n },\n \"description\": {\n \"type\": \"string\",\n \"description\":\n \"A summary of the event, in 25 words or less, single paragraph.\",\n \"maxLength\": 200,\n },\n \"category\": {\n \"type\": \"string\",\n \"enum\": [\"music\", \"art\", \"lecture\", \"other\"],\n \"description\": \"The category of the event\",\n },\n },\n \"required\": [\"title\", \"venue\", \"startDate\", \"url\", \"description\"],\n \"additionalProperties\": false,\n};",[],[203,293],"9db80a96-8ba9-11f0-8d55-0224a6c84d84","event-inserter.ts","2be48cb8-8ba5-11f0-ade2-0224a6c84d84",113,["D",1757222106013],"import { Client } from \"npm:@notionhq/client\";\nimport process from \"node:process\";\nimport { EventData } from \"./event.ts\";\n\nexport class EventInserter {\n static async insert(event: EventData) {\n const notion = new Client({ auth: process.env.NOTION_KEY });\n\n const response = await notion.pages.create({\n parent: {\n type: \"data_source_id\",\n data_source_id: process.env.NOTION_DATA_SOURCE_ID,\n },\n properties: {\n Name: {\n title: [\n {\n text: {\n content: event.title,\n },\n },\n ],\n },\n URL: {\n url: event.url,\n },\n Date: {\n date: {\n start: event.startDate,\n end: event.endDate,\n },\n },\n Notes: {\n rich_text: [\n {\n text: {\n content: event.description,\n },\n },\n ],\n },\n Category: {\n select: {\n name: event.category,\n },\n },\n },\n });\n\n return response;\n 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Diff · v421