\n Subscribe to Charlie's brain\n

\n {message && (\n

\n {message}\n

\n )}\n

\n );\n}\n\nfunction App() {\n const [events, setEvents] = useState([]);\n const [loading, setLoading] = useState(true);\n const [error, setError] = useState(null);\n const [activeYear, setActiveYear] = useState(null);\n const [darkMode, setDarkMode] = useState(false);\n const [progress, setProgress] = useState(null);\n\n useEffect(() => {\n // Check for system dark mode preference\n const mediaQuery = window.matchMedia('(prefers-color-scheme: dark)');\n setDarkMode(mediaQuery.matches);\n \n const handleThemeChange = (e: MediaQueryListEvent) => {\n setDarkMode(e.matches);\n };\n \n mediaQuery.addEventListener('change', handleThemeChange);\n return () => mediaQuery.removeEventListener('change', handleThemeChange);\n }, []);\n\n useEffect(() => {\n loadTimelineEvents();\n }, []);\n\n const loadTimelineEvents = async () => {\n try {\n const response = await fetch('/api/timeline-events');\n \n if (!response.ok) {\n throw new Error(`HTTP ${response.status}: ${response.statusText}`);\n }\n \n const reader = response.body?.getReader();\n if (!reader) {\n throw new Error('No response body reader available');\n }\n \n const decoder = new TextDecoder();\n let buffer = '';\n \n while (true) {\n const { done, value } = await reader.read();\n if (done) break;\n \n buffer += decoder.decode(value, { stream: true });\n const lines = buffer.split('\\n');\n buffer = lines.pop() || '';\n \n for (const line of lines) {\n if (line.startsWith('data: ')) {\n try {\n const data = JSON.parse(line.slice(6));\n \n if (data.type === 'progress') {\n setProgress(data.progress);\n } else if (data.type === 'complete') {\n setEvents(data.events);\n setLoading(false);\n setProgress(null);\n return;\n } else if (data.type === 'error') {\n throw new Error(data.error);\n }\n } catch (parseError) {\n console.error('Error parsing SSE data:', parseError);\n }\n }\n }\n }\n } catch (err) {\n setError(err instanceof Error ? err.message : 'Failed to load timeline');\n setLoading(false);\n setProgress(null);\n }\n };\n\n const formatDate = (timestamp: number) => {\n return new Date(timestamp).toLocaleDateString('en-US', {\n year: 'numeric',\n month: 'short',\n day: 'numeric'\n });\n };\n\n const formatYear = (timestamp: number) => {\n return new Date(timestamp).getFullYear();\n };\n\n const formatMonth = (timestamp: number) => {\n return new Date(timestamp).toLocaleDateString('en-US', {\n year: 'numeric',\n month: 'long'\n });\n };\n\n const scrollToYear = (year: number) => {\n const element = document.getElementById(`year-${year}`);\n if (element) {\n element.scrollIntoView({ behavior: 'smooth', block: 'center' });\n setActiveYear(year);\n }\n };\n\n const getProgressPercentage = () => {\n if (!progress || progress.total === 0) return 0;\n return Math.round((progress.current / progress.total) * 100);\n };\n\n if (loading) {\n return (\n

\n {progress ? (\n

{progress.phase.replace('-', ' ').toUpperCase()}

{progress.message}

\n {progress.current}/{progress.total} ({getProgressPercentage()}%)\n

\n ) : (\n

Loading timeline...

\n )}\n

\n );\n }\n\n if (error) {\n return

Error: {error}

;\n }\n\n if (events.length === 0) {\n return

No timeline events found

;\n }\n\n // Sort events by expected date\n const sortedEvents = [...events].sort((a, b) => a.expectedDate - b.expectedDate);\n \n // Get unique years for navigation\n const years = [...new Set(sortedEvents.map(event => formatYear(event.expectedDate)))].sort();\n\n // Add today's date to events\n const today = Date.now();\n const todayEvent = {\n id: 'today',\n statement: 'Today',\n originalQuestion: 'Today',\n expectedDate: today,\n confidence: 100,\n volume: 0,\n url: '#',\n creator: '',\n emojis: '📅'\n };\n\n // Insert today into the sorted events\n const eventsWithToday = [...sortedEvents];\n let todayInserted = false;\n for (let i = 0; i < eventsWithToday.length; i++) {\n if (eventsWithToday[i].expectedDate > today) {\n eventsWithToday.splice(i, 0, todayEvent);\n todayInserted = true;\n break;\n }\n }\n if (!todayInserted) {\n eventsWithToday.push(todayEvent);\n }\n\n return (\n

\n {/* Scrollable Year Navigation */}\n

Years

\n {years.map(year => (\n scrollToYear(year)}\n >\n {year}\n \n ))}\n

\n\n

WHEN

\n A timeline of the future, based on{' '}\n \n Manifold Markets\n {' '}\n forecasts.\n

\n by{' '}\n \n Charlie\n \n

\n \n

\n\n

\n {isFirstOfYear && (\n
\n {year}\n
\n )}\n \n {isFirstOfMonth && !isFirstOfYear && (\n
\n {month}\n
\n )}\n \n
\n {/* Emojis positioned to the left of timeline for non-mobile */}\n {event.emojis && (\n
\n {event.emojis}\n
\n )}\n \n
\n \n {isTodayEvent ? 'TODAY' : formatDate(event.expectedDate)}\n {/* Emojis next to date on mobile */}\n {event.emojis && {event.emojis}}\n \n
\n \n
\n {isTodayEvent ? (\n
\n Today\n
\n ) : (\n \n \n {event.statement}\n \n \n \n )}\n
\n
\n

\n\n {/* OpenMoji attribution at bottom */}\n \n

\n );\n}\n\nfunction client() {\n createRoot(document.getElementById(\"root\")).render();\n}\nif (typeof document !== \"undefined\") { client(); }\n\nexport default async function server(request: Request): Promise {\n const url = new URL(request.url);\n \n // Handle subscription endpoint\n if (url.pathname === '/api/subscribe' && request.method === 'POST') {\n try {\n const { blob } = await import(\"https://esm.town/v/std/blob\");\n const body = await request.json();\n const email = body.email?.trim();\n \n if (!email) {\n return new Response(JSON.stringify({ error: 'Email is required' }), {\n status: 400,\n headers: { 'Content-Type': 'application/json' }\n });\n }\n \n // Simple email validation\n const emailRegex = /^[^\\s@]+@[^\\s@]+\\.[^\\s@]+$/;\n if (!emailRegex.test(email)) {\n return new Response(JSON.stringify({ error: 'Invalid email format' }), {\n status: 400,\n headers: { 'Content-Type': 'application/json' }\n });\n }\n \n // Get existing subscribers\n let subscribers: string[] = [];\n try {\n const existingData = await blob.getJSON(\"charlie-brain-subscribers\");\n if (Array.isArray(existingData)) {\n subscribers = existingData;\n }\n } catch (error) {\n // File doesn't exist yet, that's fine\n }\n \n // Check if email already exists\n if (subscribers.includes(email.toLowerCase())) {\n return new Response(JSON.stringify({ error: 'Email already subscribed' }), {\n status: 400,\n headers: { 'Content-Type': 'application/json' }\n });\n }\n \n // Add new subscriber with timestamp\n const newSubscriber = {\n email: email.toLowerCase(),\n subscribedAt: new Date().toISOString()\n };\n \n // Get detailed subscribers list\n let detailedSubscribers: any[] = [];\n try {\n const existingDetailed = await blob.getJSON(\"charlie-brain-subscribers-detailed\");\n if (Array.isArray(existingDetailed)) {\n detailedSubscribers = existingDetailed;\n }\n } catch (error) {\n // File doesn't exist yet, that's fine\n }\n \n // Add to both lists\n subscribers.push(email.toLowerCase());\n detailedSubscribers.push(newSubscriber);\n \n // Save both versions\n await blob.setJSON(\"charlie-brain-subscribers\", subscribers);\n await blob.setJSON(\"charlie-brain-subscribers-detailed\", detailedSubscribers);\n \n return new Response(JSON.stringify({ success: true, message: 'Subscribed successfully!' }), {\n status: 200,\n headers: { 'Content-Type': 'application/json' }\n });\n \n } catch (error) {\n console.error('Subscription error:', error);\n return new Response(JSON.stringify({ error: 'Internal server error' }), {\n status: 500,\n headers: { 'Content-Type': 'application/json' }\n });\n }\n }\n \n if (url.pathname === '/api/timeline-events') {\n // Use Server-Sent Events for progress updates\n const stream = new ReadableStream({\n start(controller) {\n const encoder = new TextEncoder();\n \n const sendProgress = (progress: ProgressUpdate) => {\n const data = `data: ${JSON.stringify({ type: 'progress', progress })}\\n\\n`;\n controller.enqueue(encoder.encode(data));\n };\n \n const sendComplete = (events: TimelineEvent[]) => {\n const data = `data: ${JSON.stringify({ type: 'complete', events })}\\n\\n`;\n controller.enqueue(encoder.encode(data));\n controller.close();\n };\n \n const sendError = (error: string) => {\n const data = `data: ${JSON.stringify({ type: 'error', error })}\\n\\n`;\n controller.enqueue(encoder.encode(data));\n controller.close();\n };\n \n // Start the async process\n fetchTimelineEvents(sendProgress)\n .then(sendComplete)\n .catch((error) => sendError(error.message));\n }\n });\n \n return new Response(stream, {\n headers: {\n 'Content-Type': 'text/event-stream',\n 'Cache-Control': 'no-cache',\n 'Connection': 'keep-alive',\n 'Access-Control-Allow-Origin': '*',\n 'Access-Control-Allow-Headers': 'Content-Type'\n }\n });\n }\n\n return new Response(`\n \n \n WHEN - A Timeline of the Future\n \n \n \n \n \n

\n \n \n \n \n `, {\n headers: { \"content-type\": \"text/html\" }\n });\n}","deleted","label",[98],"permalink","https://www.val.town/x/dcm31/when/code/index.ts","extension","actionData","errors"]