import { unlink } from "node:fs/promises";
import { join } from "node:path";
import { zValidator } from "@hono/zod-validator";
import { Hono } from "hono";
import { createItemSchema, updateItemSchema } from "../../shared/schemas.ts";
import { parseId } from "../lib/params.ts";
import {
	createItem,
	deleteItem,
	duplicateItem,
	getAllItems,
	getItemById,
	updateItem,
} from "../services/item.service.ts";

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

const app = new Hono<Env>();

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

app.get("/:id", (c) => {
	const db = c.get("db");
	const id = parseId(c.req.param("id"));
	if (!id) return c.json({ error: "Invalid item ID" }, 400);
	const item = getItemById(db, id);
	if (!item) return c.json({ error: "Item not found" }, 404);
	return c.json(item);
});

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

app.put(
	"/:id",
	zValidator("json", updateItemSchema.omit({ id: true })),
	(c) => {
		const db = c.get("db");
		const id = parseId(c.req.param("id"));
		if (!id) return c.json({ error: "Invalid item ID" }, 400);
		const data = c.req.valid("json");
		const item = updateItem(db, id, data);
		if (!item) return c.json({ error: "Item not found" }, 404);
		return c.json(item);
	},
);

app.post("/:id/duplicate", (c) => {
	const db = c.get("db");
	const id = parseId(c.req.param("id"));
	if (!id) return c.json({ error: "Invalid item ID" }, 400);
	const newItem = duplicateItem(db, id);
	if (!newItem) return c.json({ error: "Item not found" }, 404);
	return c.json(newItem, 201);
});

app.delete("/:id", async (c) => {
	const db = c.get("db");
	const id = parseId(c.req.param("id"));
	if (!id) return c.json({ error: "Invalid item ID" }, 400);
	const deleted = deleteItem(db, id);
	if (!deleted) return c.json({ error: "Item not found" }, 404);

	// Clean up image file if exists
	if (deleted.imageFilename) {
		try {
			await unlink(join("uploads", deleted.imageFilename));
		} catch {
			// File missing is not an error worth failing the delete over
		}
	}

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

export { app as itemRoutes };