feat: support format: date / time (#467)

Author: mnahkies

integration-tests/typescript-express/src/generated/api.github.com.yaml/generated.ts

@@ -43,7 +43,7 @@ describe.each(
         export const s_SimpleObject = z.object({
           str: z.string(),
           num: z.coerce.number(),
-          date: z.string(),
+          date: z.iso.date(),
           datetime: z.iso.datetime({ offset: true }),
           optional_str: z.string().optional(),
           required_nullable: z.string().nullable(),

integration-tests/typescript-express/src/generated/api.github.com.yaml/schemas.ts

@@ -329,13 +329,13 @@ export class ZodV4Builder extends AbstractSchemaBuilder<
       )
     }
 
-    // todo: add support for date, time
     const base =
-      model.format === "date-time"
-        ? "iso.datetime({offset:true})"
-        : model.format === "email"
-          ? "email()"
-          : "string()"
+      [
+        ["date-time", "iso.datetime({offset:true})"],
+        ["date", "iso.date()"],
+        ["time", "iso.time()"],
+        ["email", "email()"],
+      ].find((it) => it[0] === model.format)?.[1] ?? "string()"
 
     return [
       zod,

integration-tests/typescript-koa/src/generated/api.github.com.yaml/generated.ts

@@ -554,6 +554,7 @@ describe("typescript/common/schema-builders/zod-v4-schema-builder - unit tests",
         )
         await expect(execute("some string")).rejects.toThrow("Invalid email")
       })
+
       it("supports date-time", async () => {
         const {code, execute} = await getActual(
           ir.string({format: "date-time"}),
@@ -570,6 +571,25 @@ describe("typescript/common/schema-builders/zod-v4-schema-builder - unit tests",
           "Invalid ISO datetime",
         )
       })
+
+      it("supports date", async () => {
+        const {code, execute} = await getActual(ir.string({format: "date"}))
+
+        expect(code).toMatchInlineSnapshot('"const x = z.iso.date()"')
+
+        await expect(execute("2024-05-25")).resolves.toBe("2024-05-25")
+        await expect(execute("some string")).rejects.toThrow("Invalid ISO date")
+      })
+
+      it("supports time", async () => {
+        const {code, execute} = await getActual(ir.string({format: "time"}))
+
+        expect(code).toMatchInlineSnapshot('"const x = z.iso.time()"')
+
+        await expect(execute("08:20:00")).resolves.toBe("08:20:00")
+        await expect(execute("some string")).rejects.toThrow("Invalid ISO time")
+      })
+
       it("supports binary", async () => {
         const {code} = await getActual(ir.string({format: "binary"}))