refactor!: move types in a single declaration file

src/api.ts

@@ -1,10 +1,12 @@
 import { HN_API } from '@/config.ts'
-import { Item, itemSchema } from '@/types/item.ts'
+import { Item, itemSchema, storiesSchema, TopStories } from '@/types.ts'
 
-export const getTopStories = async (): Promise<number[]> => {
-  const data: number[] = await fetch(`${HN_API}/topstories.json`).then((res) =>
-    res.json()
-  )
+export const getTopStories = async (): Promise<TopStories> => {
+  const data: TopStories = await fetch(`${HN_API}/topstories.json`).then((
+    res,
+  ) => res.json())
+
+  storiesSchema.parse(data)
 
   return data
 }

src/preference/setup.ts

@@ -1,5 +1,5 @@
 import { Composer, createConversation, R } from '@deps'
-import { ConversationContext, PreferencesContext } from '@/types/sessionData.ts'
+import { ConversationContext, PreferencesContext } from '@/types.ts'
 
 const composer = new Composer<PreferencesContext>()
 

src/tests/bot/setup.spec.ts

@@ -1,13 +1,7 @@
+import setup from '@/preference/setup.ts'
 import { MemorySessionStorage, R } from '@deps'
-import {
-  afterAll,
-  afterEach,
-  assertEquals,
-  beforeEach,
-  describe,
-  it,
-} from '@dev_deps'
-import { SessionData } from '@/types/sessionData.ts'
+import { afterAll, assertEquals, beforeEach, describe, it } from '@dev_deps'
+import { SessionData } from '@/types.ts'
 import {
   chat,
   from,
@@ -31,8 +25,6 @@ afterAll(async () => {
   await new Promise((r) => setTimeout(r, 0))
 })
 
-import setup from '@/preference/setup.ts'
-
 describe('setup', () => {
   it('saves preferences', async () => {
     await testSetupConversation(

src/types.ts

@@ -0,0 +1,44 @@
+import {
+    Context,
+    Conversation,
+    ConversationFlavor,
+    SessionFlavor,
+    z,
+} from '@deps'
+
+export const itemSchema = z.object({
+    id: z.number(),
+    deleted: z.optional(z.boolean()),
+    type: z.optional(z.string()),
+    by: z.optional(z.string()),
+    time: z.optional(z.number()),
+    text: z.optional(z.string()),
+    dead: z.optional(z.boolean()),
+    parent: z.optional(z.number()),
+    poll: z.optional(z.unknown()),
+    kids: z.optional(z.unknown()),
+    url: z.optional(z.string()),
+    score: z.optional(z.number()),
+    title: z.optional(z.string()),
+    parts: z.optional(z.unknown()),
+    descendants: z.optional(z.number()),
+}).nullable()
+
+export type Item = z.infer<typeof itemSchema>
+
+const storySchema = z.number()
+
+export const storiesSchema = z.array(storySchema)
+
+export type TopStories = z.infer<typeof storiesSchema>
+
+export interface SessionData {
+    preferences: string[]
+}
+
+export type PreferencesContext =
+    & Context
+    & SessionFlavor<SessionData>
+    & ConversationFlavor
+
+export type ConversationContext = Conversation<PreferencesContext>

src/utils.ts

@@ -1,6 +1,6 @@
-import { SessionData } from '@/types/sessionData.ts'
 import { freeStorage, MemorySessionStorage, R } from '@deps'
 import { APP_ENV } from '@/config.ts'
+import { SessionData } from '@/types.ts'
 
 export const getSessionAdapter = (token?: string) =>
   R.ifElse(

src/utils/testHelpers.ts

@@ -13,7 +13,7 @@ import {
   User,
 } from '@deps'
 import { faker } from '@dev_deps'
-import { PreferencesContext, SessionData } from '@/types/sessionData.ts'
+import { PreferencesContext, SessionData } from '@/types.ts'
 
 export interface ApiCall<M extends keyof RawApi = keyof RawApi> {
   method: M