import { Hono } from "hono";
import { zValidator } from "@hono/zod-validator";
import {
  createCategorySchema,
  updateCategorySchema,
} from "../../shared/schemas.ts";
import {
  getAllCategories,
  createCategory,
  updateCategory,
  deleteCategory,
} from "../services/category.service.ts";

type Env = { Variables: { db?: any } };

const app = new Hono<Env>();

app.get("/", (c) => {
  const db = c.get("db");
  const cats = getAllCategories(db);
  return c.json(cats);
});

app.post("/", zValidator("json", createCategorySchema), (c) => {
  const db = c.get("db");
  const data = c.req.valid("json");
  const cat = createCategory(db, data);
  return c.json(cat, 201);
});

app.put(
  "/:id",
  zValidator("json", updateCategorySchema.omit({ id: true })),
  (c) => {
    const db = c.get("db");
    const id = Number(c.req.param("id"));
    const data = c.req.valid("json");
    const cat = updateCategory(db, id, data);
    if (!cat) return c.json({ error: "Category not found" }, 404);
    return c.json(cat);
  },
);

app.delete("/:id", (c) => {
  const db = c.get("db");
  const id = Number(c.req.param("id"));
  const result = deleteCategory(db, id);

  if (!result.success) {
    if (result.error === "Cannot delete the Uncategorized category") {
      return c.json({ error: result.error }, 400);
    }
    return c.json({ error: result.error }, 404);
  }

  return c.json({ success: true });
});

export { app as categoryRoutes };