import { Handlers } from "$fresh/server.ts";
import { db } from "../../../../databases/db.ts";
import { notes } from "../../../../databases/schema.ts";
import { eq } from "npm:drizzle-orm@0.45.2";

export const handler: Handlers = {
  // #42 GET /notes
  async GET(request) {
    try {
      const url = new URL(request.url);
      const numEtudParam = url.searchParams.get("numEtud");
      const idModule = url.searchParams.get("idModule");

      let query = db.select().from(notes).$dynamic();

      if (numEtudParam) {
        const numEtud = parseInt(numEtudParam);
        if (isNaN(numEtud)) {
          return new Response("Paramètre numEtud invalide", { status: 400 });
        }
        query = query.where(eq(notes.numEtud, numEtud));
      }

      if (idModule) {
        query = query.where(eq(notes.idModule, idModule));
      }

      const result = await query;

      return new Response(JSON.stringify(result), {
        status: 200,
        headers: { "Content-Type": "application/json" },
      });
    } catch (error) {
      console.error("Error fetching notes:", error);
      return new Response("Failed to fetch data", { status: 500 });
    }
  },

  // #43 POST /notes
  async POST(request) {
    try {
      const body = await request.json();
      const { note, numEtud, idModule } = body;

      if (note === undefined || !numEtud || !idModule) {
        return new Response("Champs 'note', 'numEtud' et 'idModule' requis", {
          status: 400,
        });
      }

      const result = await db.insert(notes).values({ note, numEtud, idModule })
        .returning();

      return new Response(JSON.stringify(result[0]), {
        status: 201,
        headers: { "Content-Type": "application/json" },
      });
    } catch (error) {
      console.error("Error creating note:", error);
      return new Response("Failed to create note", { status: 500 });
    }
  },
};