import router from "../router.mjs";
import sql from "../sql.mjs";

const allowedMimes = [ "audio", "image", "video", "%" ];

router.get("/api/v1", (req, res) => {
  res.end("api lol");
});

router.get(/^\/api\/v1\/random(\/user\/.+|\/image|\/video|\/audio)?$/, async (req, res) => {
  const user = req.url.split[3] === "user" ? req.url.split[4] : "%";
  const mime = (allowedMimes.filter(n => req.url.split[3]?.startsWith(n))[0] ? req.url.split[3] : "") + "%";

  const rows = await sql("items").orderByRaw("rand()").limit(1).where("mime", "like", mime).andWhere("username", "like", user);

  res
    .writeHead(200, { "Content-Type": "application/json" })
    .end(JSON.stringify(rows.length > 0 ? rows[0] : []), "utf-8");
});

router.get(/^\/api\/v1\/p\/([0-9]+)/, async (req, res) => { // legacy
  let eps = 100;
  let id = +req.url.split[3];

  const rows = await sql("items").where("id", "<", id).orderBy("id", "desc").limit(eps);

  const items = {
    items: rows,
    last: rows[rows.length - 1].id
  };

  res.writeHead(200, { "Content-Type": "application/json" });
  res.end(JSON.stringify(items), "utf-8");
});

router.get(/^\/api\/v1\/item\/[0-9]+$/, async (req, res) => {
  const id = +req.url.split[3];

  const item = await sql("items").where("id", id).limit(1);
  const next = await sql("items").select("id").where("id", ">", id).orderBy("id").limit(1);
  const prev = await sql("items").select("id").where("id", "<", id).orderBy("id", "desc").limit(1);

  if(item.length === 0)
    return "nope";

  const rows = {
    ...item[0],
    ...{
      next: next[0]?.id ?? null,
      prev: prev[0]?.id ?? null
    }
  };
  res.reply({
    type: "application/json",
    body: JSON.stringify(rows)
  });
});

router.get(/^\/api\/v1\/user\/.*(\/[0-9]+)?$/, async (req, res) => { // auf qs umstellen
  const user = req.url.split[3];
  const eps = +req.url.split[4] || 50;

  const rows = await sql("items")
    .select("id", "mime", "size", "src", "stamp", "userchannel", "username", "usernetwork")
    .where("username", user)
    .orderBy("stamp", "desc")
    .limit(eps);
    
  res.reply({
    type: "application/json",
    body: JSON.stringify(rows.length > 0 ? rows : [])
  });
});