Initial commit

ui/src/utils/api.ts

@@ -0,0 +1,67 @@
+import type { Observation, UserPrompt, SessionSummary, Stats, FeedItem, ObservationFeedItem, PromptFeedItem, SummaryFeedItem } from '@/types'
+
+const API_BASE = '/api'
+
+async function fetchJson<T>(url: string): Promise<T> {
+  const response = await fetch(url)
+  if (!response.ok) {
+    throw new Error(`HTTP ${response.status}: ${response.statusText}`)
+  }
+  return response.json()
+}
+
+export async function fetchObservations(limit: number = 100, project?: string): Promise<Observation[]> {
+  const params = new URLSearchParams({ limit: String(limit) })
+  if (project) params.append('project', project)
+  return fetchJson<Observation[]>(`${API_BASE}/observations?${params}`)
+}
+
+export async function fetchPrompts(limit: number = 100, project?: string): Promise<UserPrompt[]> {
+  const params = new URLSearchParams({ limit: String(limit) })
+  if (project) params.append('project', project)
+  return fetchJson<UserPrompt[]>(`${API_BASE}/prompts?${params}`)
+}
+
+export async function fetchSummaries(limit: number = 50, project?: string): Promise<SessionSummary[]> {
+  const params = new URLSearchParams({ limit: String(limit) })
+  if (project) params.append('project', project)
+  return fetchJson<SessionSummary[]>(`${API_BASE}/summaries?${params}`)
+}
+
+export async function fetchStats(): Promise<Stats> {
+  return fetchJson<Stats>(`${API_BASE}/stats`)
+}
+
+export async function fetchProjects(): Promise<string[]> {
+  return fetchJson<string[]>(`${API_BASE}/projects`)
+}
+
+/**
+ * Combine and sort all feed items by timestamp
+ */
+export function combineTimeline(
+  observations: Observation[],
+  prompts: UserPrompt[],
+  summaries: SessionSummary[]
+): FeedItem[] {
+  const obsItems: ObservationFeedItem[] = observations.map(o => ({
+    ...o,
+    itemType: 'observation' as const,
+    timestamp: new Date(o.created_at)
+  }))
+
+  const promptItems: PromptFeedItem[] = prompts.map(p => ({
+    ...p,
+    itemType: 'prompt' as const,
+    timestamp: new Date(p.created_at)
+  }))
+
+  const summaryItems: SummaryFeedItem[] = summaries.map(s => ({
+    ...s,
+    itemType: 'summary' as const,
+    timestamp: new Date(s.created_at)
+  }))
+
+  return [...obsItems, ...promptItems, ...summaryItems]
+    .sort((a, b) => b.timestamp.getTime() - a.timestamp.getTime())
+}