refactor: upgrade to Zod 4

also updates Hono Zod related deps

package.json

@@ -17,8 +17,8 @@
   },
   "dependencies": {
     "@hono/swagger-ui": "^0.5.1",
-    "@hono/zod-openapi": "^0.19.5",
-    "@hono/zod-validator": "^0.2.2",
+    "@hono/zod-openapi": "^1.1.6",
+    "@hono/zod-validator": "^0.7.6",
     "drizzle-orm": "^0.44.7",
     "gql.tada": "^1.8.10",
     "graphql": "^16.12.0",
@@ -27,7 +27,7 @@
     "jose": "^5.10.0",
     "lodash.mapkeys": "^4.6.0",
     "luxon": "^3.6.1",
-    "zod": "^3.24.3"
+    "zod": "^4.2.1"
   },
   "devDependencies": {
     "@cloudflare/vitest-pool-workers": "^0.10.15",

pnpm-lock.yaml

@@ -11,11 +11,11 @@ importers:
         specifier: ^0.5.1
         version: 0.5.2(hono@4.10.8)
       "@hono/zod-openapi":
-        specifier: ^0.19.5
-        version: 0.19.10(hono@4.10.8)(zod@3.25.76)
+        specifier: ^1.1.6
+        version: 1.1.6(hono@4.10.8)(zod@4.2.1)
       "@hono/zod-validator":
-        specifier: ^0.2.2
-        version: 0.2.2(hono@4.10.8)(zod@3.25.76)
+        specifier: ^0.7.6
+        version: 0.7.6(hono@4.10.8)(zod@4.2.1)
       drizzle-orm:
         specifier: ^0.44.7
         version: 0.44.7
@@ -41,8 +41,8 @@ importers:
         specifier: ^3.6.1
         version: 3.7.2
       zod:
-        specifier: ^3.24.3
-        version: 3.25.76
+        specifier: ^4.2.1
+        version: 4.2.1
     devDependencies:
       "@cloudflare/vitest-pool-workers":
         specifier: ^0.10.15
@@ -138,13 +138,13 @@ packages:
       graphql: ^15.5.0 || ^16.0.0 || ^17.0.0
       typescript: ^5.0.0
 
-  "@asteasolutions/zod-to-openapi@7.3.4":
+  "@asteasolutions/zod-to-openapi@8.2.0":
     resolution:
       {
-        integrity: sha512-/2rThQ5zPi9OzVwes6U7lK1+Yvug0iXu25olp7S0XsYmOqnyMfxH7gdSQjn/+DSOHRg7wnotwGJSyL+fBKdnEA==,
+        integrity: sha512-u05zNUirlukJAf9oEHmxSF31L1XQhz9XdpVILt7+xhrz65oQqBpiOWFkGvRWL0IpjOUJ878idKoNmYPxrFnkeg==,
       }
     peerDependencies:
-      zod: ^3.20.2
+      zod: ^4.0.0
 
   "@babel/code-frame@7.27.1":
     resolution:
@@ -1411,29 +1411,20 @@ packages:
     peerDependencies:
       hono: "*"
 
-  "@hono/zod-openapi@0.19.10":
+  "@hono/zod-openapi@1.1.6":
     resolution:
       {
-        integrity: sha512-dpoS6DenvoJyvxtQ7Kd633FRZ/Qf74+4+o9s+zZI8pEqnbjdF/DtxIib08WDpCaWabMEJOL5TXpMgNEZvb7hpA==,
+        integrity: sha512-wEdG1MlCWAnngRVPKZJ/dv5P/b5UL3di/+SLX0Cuuc8hJ6Gf8L3vDMXcXywSYAwxK8iiatF7HoTxJ96gtckLpQ==,
       }
     engines: { node: ">=16.0.0" }
     peerDependencies:
       hono: ">=4.3.6"
-      zod: ">=3.0.0"
+      zod: ^4.0.0
 
-  "@hono/zod-validator@0.2.2":
+  "@hono/zod-validator@0.7.6":
     resolution:
       {
-        integrity: sha512-dSDxaPV70Py8wuIU2QNpoVEIOSzSXZ/6/B/h4xA7eOMz7+AarKTSGV8E6QwrdcCbBLkpqfJ4Q2TmBO0eP1tCBQ==,
-      }
-    peerDependencies:
-      hono: ">=3.9.0"
-      zod: ^3.19.1
-
-  "@hono/zod-validator@0.7.5":
-    resolution:
-      {
-        integrity: sha512-n4l4hutkfYU07PzRUHBOVzUEn38VSfrh+UVE5d0w4lyfWDOEhzxIupqo5iakRiJL44c3vTuFJBvcmUl8b9agIA==,
+        integrity: sha512-Io1B6d011Gj1KknV4rXYz4le5+5EubcWEU/speUjuw9XMMIaP3n78yXLhjd2A3PXaXaUwEAluOiAyLqhBEJgsw==,
       }
     peerDependencies:
       hono: ">=3.9.0"
@@ -4137,6 +4128,12 @@ packages:
         integrity: sha512-gzUt/qt81nXsFGKIFcC3YnfEAx5NkunCfnDlvuBSSFS02bcXu4Lmea0AFIUwbLWxWPx3d9p8S5QoaujKcNQxcQ==,
       }
 
+  zod@4.2.1:
+    resolution:
+      {
+        integrity: sha512-0wZ1IRqGGhMP76gLqz8EyfBXKk0J2qo2+H3fi4mcUP/KtTocoX08nmIAHl1Z2kJIZbZee8KOpBCSNPRgauucjw==,
+      }
+
   zx@8.1.5:
     resolution:
       {
@@ -4156,10 +4153,10 @@ snapshots:
       graphql: 16.12.0
       typescript: 5.9.3
 
-  "@asteasolutions/zod-to-openapi@7.3.4(zod@3.25.76)":
+  "@asteasolutions/zod-to-openapi@8.2.0(zod@4.2.1)":
     dependencies:
       openapi3-ts: 4.5.0
-      zod: 3.25.76
+      zod: 4.2.1
 
   "@babel/code-frame@7.27.1":
     dependencies:
@@ -4705,23 +4702,18 @@ snapshots:
     dependencies:
       hono: 4.10.8
 
-  "@hono/zod-openapi@0.19.10(hono@4.10.8)(zod@3.25.76)":
+  "@hono/zod-openapi@1.1.6(hono@4.10.8)(zod@4.2.1)":
     dependencies:
-      "@asteasolutions/zod-to-openapi": 7.3.4(zod@3.25.76)
-      "@hono/zod-validator": 0.7.5(hono@4.10.8)(zod@3.25.76)
+      "@asteasolutions/zod-to-openapi": 8.2.0(zod@4.2.1)
+      "@hono/zod-validator": 0.7.6(hono@4.10.8)(zod@4.2.1)
       hono: 4.10.8
       openapi3-ts: 4.5.0
-      zod: 3.25.76
+      zod: 4.2.1
 
-  "@hono/zod-validator@0.2.2(hono@4.10.8)(zod@3.25.76)":
+  "@hono/zod-validator@0.7.6(hono@4.10.8)(zod@4.2.1)":
     dependencies:
       hono: 4.10.8
-      zod: 3.25.76
-
-  "@hono/zod-validator@0.7.5(hono@4.10.8)(zod@3.25.76)":
-    dependencies:
-      hono: 4.10.8
-      zod: 3.25.76
+      zod: 4.2.1
 
   "@img/sharp-darwin-arm64@0.33.5":
     optionalDependencies:
@@ -6301,6 +6293,8 @@ snapshots:
 
   zod@3.25.76: {}
 
+  zod@4.2.1: {}
+
   zx@8.1.5:
     optionalDependencies:
       "@types/fs-extra": 11.0.4

src/controllers/auth/anilist/index.ts

@@ -20,8 +20,8 @@ const UserSchema = z.object({
   }),
   statistics: z.object({
     minutesWatched: z.number().openapi({ type: "integer", format: "int64" }),
-    episodesWatched: z.number().int(),
-    count: z.number().int(),
+    episodesWatched: z.int(),
+    count: z.int(),
     meanScore: z.number().openapi({ type: "number", format: "float" }),
   }),
 });

src/controllers/popular/browse/index.ts

@@ -23,8 +23,8 @@ const route = createRoute({
   path: "/",
   request: {
     query: z.object({
-      limit: z
-        .number({ coerce: true })
+      limit: z.coerce
+        .number()
         .int()
         .default(10)
         .describe("The number of titles to return"),

src/controllers/popular/category/index.ts

@@ -22,12 +22,12 @@ const route = createRoute({
   path: "/{category}",
   request: {
     query: z.object({
-      limit: z
-        .number({ coerce: true })
+      limit: z.coerce
+        .number()
         .int()
-        .default(10)
+        .prefault(10)
         .describe("The number of titles to return"),
-      page: z.number({ coerce: true }).int().min(1).default(1),
+      page: z.coerce.number().int().min(1).prefault(1),
     }),
     params: z.object({ category: PopularCategory }),
   },

src/controllers/search/index.ts

@@ -17,8 +17,8 @@ const route = createRoute({
   request: {
     query: z.object({
       query: z.string(),
-      page: z.number({ coerce: true }).int().min(1).default(1),
-      limit: z.number({ coerce: true }).int().default(10),
+      page: z.coerce.number().int().min(1).prefault(1),
+      limit: z.coerce.number().int().prefault(10),
     }),
   },
   responses: {

src/libs/anilist/anilist-do.ts

@@ -24,9 +24,9 @@ import type { Title } from "~/types/title";
 
 const nextAiringEpisodeSchema = z.nullable(
   z.object({
-    episode: z.number().int(),
-    airingAt: z.number().int(),
-    timeUntilAiring: z.number().int(),
+    episode: z.int(),
+    airingAt: z.int(),
+    timeUntilAiring: z.int(),
   }),
 );
 

src/types/episode/fetch-url-response.ts

@@ -9,7 +9,7 @@ export const FetchUrlResponseSchema = z.object({
   audio: z.array(z.object({ url: z.string(), lang: z.string() })),
   intro: SkippableSchema,
   outro: SkippableSchema,
-  headers: z.record(z.string()).optional(),
+  headers: z.record(z.string(), z.string()).optional(),
 });
 
 export type FetchUrlResponse = z.infer<typeof FetchUrlResponse> & {

src/types/episode/index.ts

@@ -9,8 +9,8 @@ export const Episode = z.object({
   title: z.string().nullish(),
   img: z.string().nullish(),
   description: z.string().nullish(),
-  rating: z.number().int().nullish(),
-  updatedAt: z.number().int().default(0).openapi({ format: "int64" }),
+  rating: z.int().nullish(),
+  updatedAt: z.int().prefault(0).openapi({ format: "int64" }),
 });
 
 export type EpisodesResponse = z.infer<typeof EpisodesResponse>;

src/types/schema.ts

@@ -24,9 +24,9 @@ export const ErrorResponseSchema = z.object({
   success: z.literal(false).openapi({ type: "boolean" }),
 });
 
-export const NullableNumberSchema = z.number().int().nullable();
+export const NullableNumberSchema = z.int().nullable();
 
-export const AniListIdSchema = z.number().int().openapi({ format: "int64" });
+export const AniListIdSchema = z.int().openapi({ format: "int64" });
 export const AniListIdQuerySchema = z
   .string()
   .openapi({ type: "integer", format: "int64" });

src/types/title/index.ts

@@ -8,17 +8,17 @@ export type Title = z.infer<typeof Title>;
 export const Title = z.object({
   nextAiringEpisode: z.nullable(
     z.object({
-      episode: z.number().int(),
-      airingAt: z.number().int().openapi({ format: "int64" }),
-      timeUntilAiring: z.number().int().openapi({ format: "int64" }),
+      episode: z.int(),
+      airingAt: z.int().openapi({ format: "int64" }),
+      timeUntilAiring: z.int().openapi({ format: "int64" }),
     }),
   ),
   mediaListEntry: z.nullable(
     z.object({
       status: z.nullable(WatchStatus),
       progress: NullableNumberSchema,
-      id: z.number().int(),
-      updatedAt: z.number().int().openapi({ format: "int64" }).optional(),
+      id: z.int(),
+      updatedAt: z.int().openapi({ format: "int64" }).optional(),
     }),
   ),
   countryOfOrigin: countryCodeSchema,
@@ -50,5 +50,5 @@ export const Title = z.object({
     }),
   ),
   idMal: NullableNumberSchema,
-  id: z.number().int().openapi({ format: "int64" }),
+  id: z.int().openapi({ format: "int64" }),
 });

src/types/user.ts

@@ -14,7 +14,7 @@ export const UserProfile = z.object({
   statistics: z.object({
     minutesWatched: z.number().openapi({ type: "integer", format: "int64" }),
     episodesWatched: z.number().openapi({ type: "integer", format: "int64" }),
-    count: z.number().int(),
+    count: z.int(),
     meanScore: z.number().openapi({ type: "number", format: "float" }),
   }),
   id: z.number().openapi({ type: "integer", format: "int64" }),