/* static/index.js — AnyCoder front‑end logic */

// ────── 1. MODEL LIST ──────
const MODELS = [
  { name: "Moonshot Kimi‑K2",                   id: "moonshotai/Kimi-K2-Instruct",           provider: "groq"      },
  { name: "DeepSeek V3",                        id: "deepseek-ai/DeepSeek-V3-0324"                            },
  { name: "DeepSeek R1",                        id: "deepseek-ai/DeepSeek-R1-0528"                            },
  { name: "ERNIE‑4.5‑VL",                      id: "baidu/ERNIE-4.5-VL-424B-A47B-Base-PT"                    },
  { name: "MiniMax M1",                         id: "MiniMaxAI/MiniMax-M1-80k"                                },
  { name: "Qwen3‑235B‑A22B",                    id: "Qwen/Qwen3-235B-A22B"                                    },
  { name: "Qwen3‑235B‑A22B‑Instruct‑2507",      id: "Qwen/Qwen3-235B-A22B-Instruct-2507"                      },
  { name: "Qwen3‑235B‑A22B‑Thinking",           id: "Qwen/Qwen3-235B-A22B-Thinking"                           },
  { name: "Qwen3‑Coder‑480B‑A35B",              id: "Qwen/Qwen3-Coder-480B-A35B-Instruct"                     },
  { name: "Qwen3‑32B",                          id: "Qwen/Qwen3-32B"                                          },
  { name: "SmolLM3‑3B",                         id: "HuggingFaceTB/SmolLM3-3B"                                },
  { name: "GLM‑4.1V‑9B‑Thinking",               id: "THUDM/GLM-4.1V-9B-Thinking"                              },
  /* optional premium providers — keep but hide if you don't have keys */
  { name: "OpenAI GPT‑4",                       id: "openai/gpt-4",                    provider: "openai"      },
  { name: "Gemini Pro",                         id: "gemini/pro",                      provider: "gemini"      },
  { name: "Fireworks V1",                       id: "fireworks-ai/fireworks-v1",       provider: "fireworks"   }
];

// ────── 2. LANGUAGE LIST ──────
const LANGS = [
  "python","c","cpp","markdown","latex","json","html","css","javascript",
  "jinja2","typescript","yaml","dockerfile","shell","r","sql","sql-msSQL",
  "sql-mySQL","sql-mariaDB","sql-sqlite","sql-cassandra","sql-plSQL",
  "sql-hive","sql-pgSQL","sql-gql","sql-gpSQL","sql-sparkSQL","sql-esper"
];

// ────── 3. DOM SHORTCUTS ──────
const $ = s => document.querySelector(s);
const els = {
  model: $("#model"), lang : $("#lang"), prompt: $("#prompt"),
  file : $("#file"),  url  : $("#url"),  search: $("#search"),
  code : $("#code"),  prev : $("#preview"), hist : $("#hist"),
  gen  : $("#gen"),   clr  : $("#clear")
};

// ────── 4. POPULATE SELECTS ──────
MODELS.forEach(m => els.model.append(new Option(m.name, m.id)));
LANGS .forEach(l => els.lang .append(new Option(l.toUpperCase(), l)));

// ────── 5. SIMPLE TAB SWITCHER ──────
document.querySelectorAll(".tabs[role=tablist]").forEach(tl => {
  tl.addEventListener("click", ev => {
    if (ev.target.role !== "tab") return;
    tl.querySelectorAll("[role=tab]").forEach(t =>
      t.setAttribute("aria-selected", t === ev.target));
    tl.parentElement.querySelectorAll("[role=tabpanel]").forEach(p =>
      p.hidden = (p.id !== ev.target.getAttribute("aria-controls")));
  });
});

// ────── 6. CLEAR SESSION ──────
els.clr.onclick = () => {
  els.prompt.value = ""; els.file.value = ""; els.url.value = "";
  els.code.textContent = ""; els.prev.srcdoc = ""; els.hist.innerHTML = "";
};

// ────── 7. ADD HISTORY LINE ──────
const addHist = txt => {
  const li = document.createElement("li");
  li.textContent = `${new Date().toLocaleTimeString()} – ${txt.slice(0,40)}…`;
  els.hist.prepend(li);
};

// ────── 8. GENERATE (calls /run/predict) ──────
els.gen.onclick = async () => {
  const prompt = els.prompt.value.trim();
  if (!prompt) return alert("Provide a prompt first.");

  els.gen.disabled = true; els.gen.textContent = "Generating…";

  // optional file upload
  let file_path = null;
  if (els.file.files.length) {
    const fd = new FormData(); fd.append("file", els.file.files[0]);
    const up = await fetch("/upload", { method:"POST", body: fd });
    file_path = (await up.json()).file;
  }

  const body = {
    prompt,
    model_id     : els.model.value,
    language     : els.lang.value,
    enable_search: els.search.checked,
    website_url  : els.url.value || null,
    file_path
  };

  try {
    const r = await fetch("/run/predict", {
      method:"POST",
      headers:{ "Content-Type":"application/json" },
      body: JSON.stringify(body)
    });
    if (!r.ok) throw new Error(r.statusText);
    const [code] = await r.json();            // returns [code, history]
    els.code.textContent = code;
    els.prev.srcdoc = (els.lang.value === "html")
      ? code
      : `<pre style="white-space:pre-wrap">${code.replace(/</g,"&lt;")}</pre>`;
    addHist(prompt);
  } catch (err) {
    console.error(err); alert("Generation failed (see console).");
  } finally {
    els.gen.disabled = false; els.gen.textContent = "Generate code";
  }
};