"use strict";

const state = { repos: [], jobs: [], records: [], token: "", branches: [] };

/* ---------------------------------- auth ---------------------------------- */

const TOKEN_KEY = "cr-admin-token";

function token() {
  return state.token || localStorage.getItem(TOKEN_KEY) || "";
}

function showGate(message) {
  const gate = document.getElementById("token-gate");
  const err = document.getElementById("token-error");
  gate.classList.remove("hidden");
  if (message) {
    err.textContent = message;
    err.classList.remove("hidden");
  } else {
    err.classList.add("hidden");
  }
  document.getElementById("token-form").elements.token.focus();
}

function hideGate() {
  document.getElementById("token-gate").classList.add("hidden");
}

function setBanner(message, kind) {
  const el = document.getElementById("banner");
  if (!message) {
    el.classList.add("hidden");
    return;
  }
  el.textContent = message;
  el.className = `banner${kind === "ok" ? " ok" : ""}`;
}

document.getElementById("token-form").addEventListener("submit", async (ev) => {
  ev.preventDefault();
  const value = ev.target.elements.token.value.trim();
  if (!value) return;
  state.token = value;
  try {
    await api("/repos");
    localStorage.setItem(TOKEN_KEY, value);
    hideGate();
    document.getElementById("sign-out").classList.remove("hidden");
    setBanner("");
    await refreshAll();
  } catch (err) {
    state.token = "";
    showGate(`Token 无效：${err.message}`);
  }
});

document.getElementById("sign-out").addEventListener("click", () => {
  state.token = "";
  localStorage.removeItem(TOKEN_KEY);
  document.getElementById("sign-out").classList.add("hidden");
  showGate("");
});

/* ---------------------------------- api ----------------------------------- */

async function api(path, { method = "GET", body } = {}) {
  const headers = { Accept: "application/json" };
  const t = token();
  if (t) headers.Authorization = `Bearer ${t}`;
  if (body !== undefined) headers["Content-Type"] = "application/json";
  const res = await fetch(`/api${path}`, {
    method, headers, body: body === undefined ? undefined : JSON.stringify(body),
  });
  const textBody = await res.text();
  let parsed = null;
  try { parsed = textBody ? JSON.parse(textBody) : null; } catch { parsed = textBody; }
  if (!res.ok) {
    const error = new Error(parsed?.error || `HTTP ${res.status}`);
    error.status = res.status;
    throw error;
  }
  return parsed;
}

function show(selector, content, cls) {
  const el = document.querySelector(selector);
  el.textContent = typeof content === "string" ? content : JSON.stringify(content, null, 2);
  if (cls) el.className = cls; else el.className = "log";
  el.classList.remove("hidden");
}

function hide(selector) { document.querySelector(selector).classList.add("hidden"); }

function esc(value) {
  return String(value ?? "").replace(/[&<>"]/g, (c) => (
    { "&": "&amp;", "<": "&lt;", ">": "&gt;", '"': "&quot;" }[c]
  ));
}

function fmtTime(value) {
  if (!value) return "";
  return String(value).replace("T", " ").replace("Z", "");
}

function handleError(err) {
  if (err.status === 401) {
    document.getElementById("sign-out").classList.add("hidden");
    showGate("Token 无效或已过期，请重新输入。");
    return;
  }
  setBanner(err.message);
}

/* ---------------------------------- tabs ---------------------------------- */

for (const tab of document.querySelectorAll(".tab")) {
  tab.addEventListener("click", () => {
    for (const t of document.querySelectorAll(".tab")) t.classList.toggle("active", t === tab);
    for (const p of document.querySelectorAll(".panel")) {
      p.classList.toggle("active", p.id === `tab-${tab.dataset.tab}`);
    }
    if (tab.dataset.tab === "jobs") loadJobs().catch(handleError);
    if (tab.dataset.tab === "records") loadRecords().catch(handleError);
    if (tab.dataset.tab === "settings") loadSettings().catch(handleError);
  });
}

async function loadHealth() {
  try {
    const h = await api("/health");
    const q = h.queue || {};
    document.getElementById("status").textContent =
      `队列 运行${q.running || 0} / 等待${q.queued || 0} · 成功${q.succeeded || 0} · 失败${q.failed || 0}` +
      (h.llmModel ? ` · ${h.llmModel}` : "");
  } catch (err) {
    document.getElementById("status").textContent = `服务异常：${err.message}`;
  }
}

/* ---------------------------------- repos --------------------------------- */

const REPO_FIELDS = [
  "id", "repo_url", "enabled", "managed_branch", "check_branches", "review_scope",
  "gitea_token", "llm_model", "llm_token", "background_template", "excludes",
  "publish_mode", "create_issue", "issue_labels", "block_severity", "block_categories",
  "fail_on_findings", "auto_merge", "auto_merge_mode", "merge_method", "delete_branch",
  "max_comments", "concurrency",
];

async function loadRepos() {
  state.repos = await api("/repos");
  // The webhook is what makes reviews fire at all, so its state belongs in the
  // repository row instead of hiding in Gitea's settings.
  await Promise.all(state.repos.map(async (r) => {
    try {
      r.webhook = await api(`/repos/${r.id}/webhook`);
    } catch (err) {
      r.webhook = { error: err.message };
    }
  }));
  const tbody = document.querySelector("#repos-table tbody");
  if (state.repos.length === 0) {
    tbody.innerHTML = '<tr><td colspan="8" class="empty">还没有配置仓库。点「从 Gitea 导入」批量选择，或「新增仓库」手动填 Git 地址。</td></tr>';
  } else {
    tbody.innerHTML = state.repos.map((r) => `
      <tr>
        <td><strong>${esc(r.owner)}/${esc(r.name)}</strong><br><span class="hint">${esc(shortUrl(r.repo_url))}</span></td>
        <td><code>${esc(r.managed_branch)}</code></td>
        <td>${branchTags(r.check_branches, r.managed_branch)}</td>
        <td>${esc(scopeLabel(r.review_scope))}</td>
        <td>${webhookCell(r)}</td>
        <td>${r.enabled ? '<span class="tag ok">启用</span>' : '<span class="tag muted">停用</span>'}</td>
        <td>${r.auto_merge ? `<span class="tag warn">${esc(r.merge_method)}</span>` : '<span class="tag muted">否</span>'}</td>
        <td><code>${esc(r.block_severity || "—")}</code></td>
        <td>
          <button data-edit="${r.id}">编辑</button>
          <button data-run="${r.id}">立即审查</button>
          <button data-records="${r.id}">历史</button>
          <button data-hook="${r.id}">修复 Webhook</button>
          <button class="danger" data-del="${r.id}">删除</button>
        </td>
      </tr>`).join("");
  }
  syncRecordFilter();
}

function webhookCell(r) {
  if (r.webhook?.error) return `<span class="tag err" title="${esc(r.webhook.error)}">未知</span>`;
  if (r.webhook?.installed) return '<span class="tag ok">已配置</span>';
  return '<span class="tag err">未配置</span>';
}

function shortUrl(url) {
  return String(url || "").replace(/^https?:\/\//, "");
}

function branchTags(list, managed) {
  const names = String(list || "").split(",").map((s) => s.trim()).filter(Boolean);
  if (names.includes("*")) {
    const extra = names.filter((n) => n !== "*");
    return `<span class="tag warn">任意分支</span>` +
      (extra.length ? ` ${extra.map((n) => `<span class="tag muted">${esc(n)}</span>`).join(" ")}` : "");
  }
  const own = names.filter((n) => n !== managed);
  if (!own.length) return '<span class="tag muted">仅 PR</span>';
  return own.map((n) => `<span class="tag muted">${esc(n)}</span>`).join(" ");
}

function scopeLabel(scope) {
  return { both: "Push + PR", pr: "仅 PR", push: "仅 Push" }[scope] || scope;
}

document.querySelector("#repos-table").addEventListener("click", async (ev) => {
  const target = ev.target.closest("button");
  if (!target) return;
  try {
    if (target.dataset.edit) await openRepo(Number(target.dataset.edit));
    if (target.dataset.del) {
      if (!confirm("删除该仓库配置？历史任务会一并删除。")) return;
      await api(`/repos/${target.dataset.del}`, { method: "DELETE" });
      await loadRepos();
    }
    if (target.dataset.run) openManual(Number(target.dataset.run));
    if (target.dataset.records) {
      document.querySelector('#record-filter').value = String(target.dataset.records);
      document.querySelector('.tab[data-tab="records"]').click();
    }
    if (target.dataset.hook) {
      target.disabled = true;
      const label = target.textContent;
      target.textContent = "处理中…";
      try {
        const res = await api(`/repos/${target.dataset.hook}/webhook`, { method: "POST" });
        setBanner(`Webhook ${res.created ? "已创建" : "已更新"}：${res.url}`, "ok");
      } finally {
        target.disabled = false;
        target.textContent = label;
        await loadRepos();
      }
    }
  } catch (err) {
    handleError(err);
  }
});

document.getElementById("add-repo").addEventListener("click", () => openRepo(null));
document.getElementById("refresh-jobs").addEventListener("click", () => loadJobs().catch(handleError));
document.getElementById("refresh-records").addEventListener("click", () => loadRecords().catch(handleError));
document.getElementById("record-filter").addEventListener("change", () => loadRecords().catch(handleError));

/* ------------------------------ repo dialog ------------------------------- */

const modal = document.getElementById("modal");
const form = document.getElementById("repo-form");
const branchList = document.getElementById("branch-list");

const ANY_BRANCH = "*";

function allSelected() {
  return String(form.elements.check_branches.value || "")
    .split(",").map((s) => s.trim()).filter(Boolean);
}

/** Branch names only; the "任意分支" token is not a branch. */
function selectedBranches() {
  return allSelected().filter((b) => b !== ANY_BRANCH);
}

function reviewsAnyBranch() {
  return allSelected().includes(ANY_BRANCH);
}

function setSelectedBranches(list, { any = reviewsAnyBranch() } = {}) {
  const names = list.filter((b) => b && b !== ANY_BRANCH);
  form.elements.check_branches.value = (any ? [ANY_BRANCH, ...names] : names).join(",");
}

function renderBranchList() {
  const chosen = new Set(selectedBranches());
  const managed = form.elements.managed_branch.value.trim();
  const any = reviewsAnyBranch();
  if (!state.branches.length) {
    branchList.innerHTML = '<span class="hint">点「加载分支」获取远端分支列表。</span>';
    return;
  }
  // The managed branch is the final target and is always reviewed for pull
  // requests, so it is not offered as a checked branch.
  const selectable = state.branches.filter((b) => b !== managed);
  const parts = [
    `<button type="button" class="${any ? "on" : ""}" data-any="1">任意分支</button>`,
  ];
  if (selectable.length === 0) {
    parts.push('<span class="hint">除管理分支外没有其它分支。</span>');
  } else {
    parts.push(...selectable.map((b) => {
      const on = chosen.has(b);
      return `<button type="button" class="${on ? "on" : ""}" data-branch="${esc(b)}">${esc(b)}</button>`;
    }));
  }
  branchList.innerHTML = parts.join("");
}

branchList.addEventListener("click", (ev) => {
  const anyBtn = ev.target.closest("button[data-any]");
  if (anyBtn) {
    setSelectedBranches(selectedBranches(), { any: !reviewsAnyBranch() });
    renderBranchList();
    return;
  }
  const btn = ev.target.closest("button[data-branch]");
  if (!btn) return;
  const name = btn.dataset.branch;
  const chosen = selectedBranches();
  const idx = chosen.indexOf(name);
  if (idx >= 0) chosen.splice(idx, 1); else chosen.push(name);
  setSelectedBranches(chosen);
  renderBranchList();
});

async function openRepo(id) {
  form.reset();
  hide("#repo-result");
  state.branches = [];
  renderBranchList();
  const repo = id ? state.repos.find((r) => r.id === id) : null;
  document.getElementById("modal-title").textContent = repo ? `${repo.owner}/${repo.name}` : "新增仓库";
  document.getElementById("repo-parsed").textContent = "";
  for (const field of REPO_FIELDS) {
    const input = form.elements[field];
    if (!input) continue;
    if (!repo) {
      if (field === "enabled" || field === "create_issue") input.checked = true;
      if (field === "managed_branch") input.value = "main";
      if (field === "check_branches") input.value = "";
      continue;
    }
    if (input.type === "checkbox") input.checked = Boolean(repo[field]);
    else if (input.type === "password") input.value = "";
    else input.value = repo[field] ?? "";
  }
  if (repo) {
    document.getElementById("repo-parsed").textContent = `${repo.owner}/${repo.name}`;
    // Existing repositories get their branch list loaded for the picker.
    loadBranches({ silent: true }).catch(() => {});
  }
  modal.classList.remove("hidden");
}

document.getElementById("modal-close").addEventListener("click", () => modal.classList.add("hidden"));
modal.addEventListener("click", (ev) => { if (ev.target === modal) modal.classList.add("hidden"); });

/** Fetch branch info for whatever git URL is currently in the form. */
async function loadBranches({ silent = false } = {}) {
  const repoUrl = form.elements.repo_url.value.trim();
  const id = form.elements.id.value;
  const hint = document.getElementById("repo-parsed");
  if (!repoUrl && !id) {
    if (!silent) hint.textContent = "请先填写 Git 地址。";
    return;
  }
  if (!silent) hint.textContent = "正在连接…";
  try {
    const body = repoUrl ? { repo_url: repoUrl } : undefined;
    const info = body
      ? await api("/repos/branches", { method: "POST", body })
      : await api(`/repos/${id}/discover`, { method: "POST" });
    state.branches = info.branches || [];
    if (!form.elements.managed_branch.value) form.elements.managed_branch.value = info.default_branch || "main";
    // Existing repositories keep their saved selection; a fresh one starts
    // with no explicit branches checked (only the managed branch is reviewed).
    if (form.elements.check_branches.value === "") setSelectedBranches([], { any: false });
    renderBranchList();
    hint.className = "hint ok";
    hint.textContent =
      `连接成功：${info.owner}/${info.name} · 默认分支 ${info.default_branch} · 共 ${state.branches.length} 个分支` +
      (info.has_issues ? "" : " · 该仓库未启用 Issue");
    document.getElementById("clone-source").innerHTML =
      state.branches.map((b) => `<option value="${esc(b)}">${esc(b)}</option>`).join("");
    return info;
  } catch (err) {
    hint.className = "hint err";
    hint.textContent = `连接失败：${err.message}`;
    throw err;
  }
}

document.getElementById("repo-test").addEventListener("click", () => loadBranches().catch(() => {}));
document.getElementById("branch-reload").addEventListener("click", () => loadBranches().catch(() => {}));

form.elements.repo_url.addEventListener("blur", async () => {
  const url = form.elements.repo_url.value.trim();
  if (!url) return;
  try {
    const parsed = await api("/repos/parse", { method: "POST", body: { repo_url: url } });
    document.getElementById("repo-parsed").className = "hint";
    document.getElementById("repo-parsed").textContent = `识别为：${parsed.owner}/${parsed.name}`;
  } catch (err) {
    document.getElementById("repo-parsed").className = "hint err";
    document.getElementById("repo-parsed").textContent = err.message;
  }
});

form.addEventListener("submit", async (ev) => {
  ev.preventDefault();
  const data = {};
  for (const field of REPO_FIELDS) {
    const input = form.elements[field];
    if (!input) continue;
    if (input.type === "checkbox") data[field] = input.checked ? 1 : 0;
    else if (input.type === "password") { if (input.value) data[field] = input.value; }
    else if (input.value !== "") data[field] = input.value;
  }
  try {
    if (data.id) {
      await api(`/repos/${data.id}`, { method: "PATCH", body: data });
      modal.classList.add("hidden");
      setBanner("");
    } else {
      const created = await api("/repos", { method: "POST", body: data });
      modal.classList.add("hidden");
      if (created.webhook?.error) {
        setBanner(`仓库已保存，但 Webhook 安装失败：${created.webhook.error}`);
      } else if (created.webhook) {
        setBanner(`仓库已保存，Webhook ${created.webhook.created ? "已创建" : "已更新"}。`, "ok");
      } else {
        setBanner("仓库已保存。");
      }
    }
    await loadRepos();
  } catch (err) {
    if (err.status === 401) return handleError(err);
    show("#repo-result", err.message);
  }
});

/* ------------------------------ clone branch ------------------------------ */

const cloneModal = document.getElementById("clone-modal");
const cloneForm = document.getElementById("clone-form");

document.getElementById("branch-create").addEventListener("click", () => {
  cloneForm.reset();
  hide("#clone-result");
  cloneForm.elements.new_branch.value = form.elements.managed_branch.value.trim() || "main";
  if (!state.branches.length) {
    loadBranches().then(() => cloneModal.classList.remove("hidden")).catch(() => {});
    return;
  }
  cloneModal.classList.remove("hidden");
});

document.getElementById("clone-close").addEventListener("click", () => cloneModal.classList.add("hidden"));
cloneModal.addEventListener("click", (ev) => { if (ev.target === cloneModal) cloneModal.classList.add("hidden"); });

cloneForm.addEventListener("submit", async (ev) => {
  ev.preventDefault();
  const id = form.elements.id.value;
  if (!id) return show("#clone-result", "请先保存仓库，再创建分支。");
  try {
    const res = await api(`/repos/${id}/branches`, {
      method: "POST",
      body: {
        new_branch: cloneForm.elements.new_branch.value.trim(),
        from_branch: cloneForm.elements.from_branch.value,
      },
    });
    state.branches = res.branches || [];
    form.elements.managed_branch.value = res.repo.managed_branch;
    form.elements.check_branches.value = res.repo.check_branches;
    renderBranchList();
    cloneModal.classList.add("hidden");
    show("#repo-result", `已创建分支 ${res.repo.managed_branch}`);
  } catch (err) {
    show("#clone-result", err.message);
  }
});

/* ------------------------------ import dialog ----------------------------- */

const importModal = document.getElementById("import-modal");

document.getElementById("import-repo").addEventListener("click", async () => {
  importModal.classList.remove("hidden");
  document.getElementById("import-list").innerHTML = '<div class="empty">正在拉取仓库列表…</div>';
  try {
    state.remoteRepos = await api("/gitea/repos");
    renderImportList();
  } catch (err) {
    document.getElementById("import-list").innerHTML = `<div class="empty">拉取失败：${esc(err.message)}</div>`;
  }
});

document.getElementById("import-close").addEventListener("click", () => importModal.classList.add("hidden"));
importModal.addEventListener("click", (ev) => { if (ev.target === importModal) importModal.classList.add("hidden"); });
document.getElementById("import-search").addEventListener("input", renderImportList);

function renderImportList() {
  const q = document.getElementById("import-search").value.trim().toLowerCase();
  const list = (state.remoteRepos || []).filter((r) => !q || r.full_name.toLowerCase().includes(q));
  const box = document.getElementById("import-list");
  if (!list.length) {
    box.innerHTML = '<div class="empty">没有匹配的仓库。</div>';
    return;
  }
  box.innerHTML = list.map((r) => `
    <div class="import-row">
      <div>
        <div class="name">${esc(r.full_name)}</div>
        <div class="meta">${esc(r.default_branch || "main")}${r.private ? " · 私有" : ""}${r.empty ? " · 空仓库" : ""}${r.archived ? " · 已归档" : ""}${r.description ? ` · ${esc(r.description)}` : ""}</div>
      </div>
      <div class="actions">
        ${r.configured
          ? '<span class="tag ok">已配置</span>'
          : `<button data-import="${esc(r.full_name)}" ${r.empty ? "disabled" : ""}>${r.empty ? "空仓库" : "添加"}</button>`}
      </div>
    </div>`).join("");
}

document.getElementById("import-list").addEventListener("click", async (ev) => {
  const btn = ev.target.closest("button[data-import]");
  if (!btn) return;
  const fullName = btn.dataset.import;
  const remote = (state.remoteRepos || []).find((r) => r.full_name === fullName);
  if (!remote) return;
  btn.disabled = true;
  btn.textContent = "添加中…";
  try {
    const created = await api("/repos", {
      method: "POST",
      body: {
        repo_url: remote.clone_url,
        managed_branch: remote.default_branch || "main",
        check_branches: "",
      },
    });
    // Discover immediately so the branch list is populated on first open.
    await api(`/repos/${created.id}/discover`, { method: "POST" }).catch(() => {});
    remote.configured = true;
    renderImportList();
    await loadRepos();
    setBanner(`已添加 ${fullName}`, "ok");
  } catch (err) {
    btn.disabled = false;
    btn.textContent = "添加";
    setBanner(`添加 ${fullName} 失败：${err.message}`);
  }
});

/* ------------------------------ manual dialog ----------------------------- */

const manualModal = document.getElementById("manual-modal");
const manualForm = document.getElementById("manual-form");

function openManual(repoId) {
  const repo = state.repos.find((r) => r.id === repoId);
  if (!repo) return;
  manualForm.reset();
  hide("#manual-result");
  manualForm.elements.repo_id.value = repo.id;
  manualForm.elements.ref.value = repo.managed_branch || "main";
  manualForm.elements.base_ref.value = repo.managed_branch || "main";
  document.getElementById("manual-repo").textContent = `${repo.owner}/${repo.name}`;
  manualModal.classList.remove("hidden");
}

document.getElementById("manual-close").addEventListener("click", () => manualModal.classList.add("hidden"));
manualModal.addEventListener("click", (ev) => { if (ev.target === manualModal) manualModal.classList.add("hidden"); });

manualForm.addEventListener("submit", async (ev) => {
  ev.preventDefault();
  const body = {
    repo_id: Number(manualForm.elements.repo_id.value),
    ref: manualForm.elements.ref.value.trim(),
    sha: manualForm.elements.sha.value.trim(),
    base_ref: manualForm.elements.base_ref.value.trim() || undefined,
  };
  const pr = manualForm.elements.pr_number.value.trim();
  if (pr) body.pr_number = Number(pr);
  try {
    const res = await api("/review", { method: "POST", body });
    manualModal.classList.add("hidden");
    setBanner(`已加入队列：任务 #${res.jobId}`, "ok");
    await loadJobs();
  } catch (err) {
    if (err.status === 401) return handleError(err);
    show("#manual-result", err.message);
  }
});

/* -------------------------------- records --------------------------------- */

function syncRecordFilter() {
  const sel = document.getElementById("record-filter");
  const current = sel.value;
  sel.innerHTML = '<option value="">全部仓库</option>' +
    state.repos.map((r) => `<option value="${r.id}">${esc(r.owner)}/${esc(r.name)}</option>`).join("");
  sel.value = current;
}

async function loadRecords() {
  const repoId = document.getElementById("record-filter").value;
  state.records = await api(`/records${repoId ? `?repo_id=${repoId}` : ""}`);
  const box = document.getElementById("records-list");
  if (!state.records.length) {
    box.innerHTML = '<div class="empty">暂无审查记录。仓库收到 push 或 PR 后，这里会出现摘要。</div>';
    return;
  }
  box.innerHTML = state.records.map(renderRecordCard).join("");
}

function renderRecordCard(r) {
  const summaryCls = r.summary_status === "done" ? "" : (r.summary_status === "failed" ? " failed" : " pending");
  let summary;
  if (r.summary_status === "done") {
    summary = esc(r.summary || "");
  } else if (r.summary_status === "failed") {
    summary = `摘要生成失败：${esc(r.summary_error || "未知原因")}`;
  } else if (r.summary_status === "skipped") {
    summary = "未生成摘要。";
  } else {
    summary = "摘要生成中…";
  }
  return `
    <article class="record">
      <div class="record-head">
        <div>
          <div class="who">${esc(r.owner)}/${esc(r.name)} · ${esc(r.ref_name)}</div>
          <div class="record-meta">
            <span>${fmtTime(r.created_at)}</span>
            <span>提交 <code>${esc(String(r.to_sha).slice(0, 10))}</code></span>
            <span>${esc(r.trigger || "")}</span>
            ${r.pr_number ? `<a href="${esc(r.pr_url || "#")}" target="_blank" rel="noreferrer">PR #${r.pr_number}</a>` : ""}
            <span>发现 ${r.findings_count ?? 0} 条</span>
            ${r.tokens_total ? `<span>${r.tokens_total} tokens</span>` : ""}
            ${r.elapsed ? `<span>${esc(r.elapsed)}</span>` : ""}
          </div>
        </div>
        <div class="actions">
          <span class="tag ${r.summary_status === "done" ? "ok" : (r.summary_status === "failed" ? "err" : "muted")}">${esc(r.summary_status)}</span>
          <button data-record="${r.id}">详情</button>
        </div>
      </div>
      <div class="record-summary${summaryCls}">${summary}</div>
    </article>`;
}

document.getElementById("records-list").addEventListener("click", async (ev) => {
  const btn = ev.target.closest("button[data-record]");
  if (!btn) return;
  try {
    const rec = await api(`/records/${btn.dataset.record}`);
    showRecord(rec);
  } catch (err) {
    handleError(err);
  }
});

const recordModal = document.getElementById("record-modal");
let currentRecordId = null;

function showRecord(rec) {
  currentRecordId = rec.id;
  document.getElementById("record-title").textContent =
    `审查记录 #${rec.id} · ${rec.repository || ""} · ${rec.ref_name}`;
  const params = rec.params || {};
  const findings = rec.findings || [];
  const rows = [
    ["提交", `<code>${esc(rec.to_sha)}</code>`],
    ["对比基准", rec.from_sha ? `<code>${esc(rec.from_sha)}</code>` : "—"],
    ["触发来源", esc(rec.trigger || "—")],
    ["Pull Request", rec.pr_number
      ? `<a href="${esc(rec.pr_url || "#")}" target="_blank" rel="noreferrer">#${rec.pr_number}</a>`
      : "—"],
    ["管理分支", esc(params.managed_branch || "—")],
    ["PR 目标分支", esc(params.base_ref || "—")],
    ["审查范围", esc(params.review_scope || "—")],
    ["阻断阈值", `${esc(params.block_severity || "—")}${params.block_categories ? ` / ${esc(params.block_categories)}` : ""}`],
    ["发布方式", esc(params.publish_mode || "—")],
    ["自动合并", params.auto_merge ? `${esc(params.auto_merge_mode || "")} · ${esc(params.merge_method || "")}` : "关闭"],
    ["排除路径", esc(params.excludes || "—")],
    ["LLM 模型", esc(rec.llm_model || "—")],
    ["审查状态", `${esc(rec.llm_status || "—")}${params.review_incomplete ? "（覆盖不完整）" : ""}`],
    ["消耗 / 耗时", `${rec.tokens_total || 0} tokens · ${esc(rec.elapsed || "—")}`],
    ["摘要模型", esc(rec.summary_model || "—")],
  ];
  const findingsHtml = findings.length
    ? findings.map((f) => `
        <div class="finding${f.blocking ? " blocking" : ""}">
          <div class="where">${esc(f.path)}${f.start_line ? `:${f.start_line}${f.end_line && f.end_line !== f.start_line ? `-${f.end_line}` : ""}` : ""} · ${esc(f.severity || "未分级")}/${esc(f.category || "-")}${f.blocking ? " · 阻断" : ""}</div>
          <div>${esc(f.content || "")}</div>
        </div>`).join("")
    : '<div class="empty">本次没有产生意见。</div>';

  document.getElementById("record-body").innerHTML = `
    <h3>审查需求 / 背景</h3>
    <div class="record-summary">${rec.requirement ? esc(rec.requirement) : "（未填写）"}</div>
    <h3 style="margin-top:16px">AI 摘要</h3>
    <div class="record-summary${rec.summary_status === "done" ? "" : " pending"}">${
      rec.summary_status === "done" ? esc(rec.summary || "") : esc(rec.summary_error || "生成中…")
    }</div>
    <h3 style="margin-top:16px">运行参数</h3>
    <dl class="kv">${rows.map(([k, v]) => `<dt>${esc(k)}</dt><dd>${v}</dd>`).join("")}</dl>
    <h3 style="margin-top:16px">审查意见（${findings.length}）</h3>
    ${findingsHtml}`;
  recordModal.classList.remove("hidden");
}

document.getElementById("record-close").addEventListener("click", () => recordModal.classList.add("hidden"));
recordModal.addEventListener("click", (ev) => { if (ev.target === recordModal) recordModal.classList.add("hidden"); });

document.getElementById("record-resummarise").addEventListener("click", async () => {
  if (!currentRecordId) return;
  try {
    await api(`/records/${currentRecordId}/summarise`, { method: "POST" });
    recordModal.classList.add("hidden");
    setBanner("已重新排队生成摘要。", "ok");
    await loadRecords();
  } catch (err) {
    handleError(err);
  }
});

/* ---------------------------------- jobs ---------------------------------- */

const STATUS_TAG = {
  queued: "muted", running: "warn", succeeded: "ok", failed: "err", skipped: "muted",
};

async function loadJobs() {
  state.jobs = await api("/jobs?limit=100");
  const tbody = document.querySelector("#jobs-table tbody");
  if (state.jobs.length === 0) {
    tbody.innerHTML = '<tr><td colspan="10" class="empty">暂无任务。仓库收到 push 或 Pull Request 后会出现在这里。</td></tr>';
    return;
  }
  tbody.innerHTML = state.jobs.map((j) => `
    <tr>
      <td>${j.id}</td>
      <td>${esc(j.owner)}/${esc(j.name)}</td>
      <td><code>${esc(j.ref_name)}</code>${j.pr_number ? ` <span class="tag muted">PR #${j.pr_number}</span>` : ""}</td>
      <td><code>${esc(String(j.to_sha).slice(0, 10))}</code></td>
      <td><span class="tag ${STATUS_TAG[j.status] || "muted"}">${esc(j.status)}</span>${j.phase ? ` <span class="tag muted">${esc(j.phase)}</span>` : ""}</td>
      <td>${j.findings ?? 0}</td>
      <td>${j.blocking ? `<span class="tag err">${j.blocking}</span>` : "0"}</td>
      <td>${j.merged ? '<span class="tag ok">已合并</span>' : ""}</td>
      <td>${fmtTime(j.started_at || j.created_at)}</td>
      <td><button data-log="${j.id}">日志</button> <button data-retry="${j.id}">重跑</button></td>
    </tr>`).join("");
}

document.querySelector("#jobs-table").addEventListener("click", async (ev) => {
  const target = ev.target.closest("button");
  if (!target) return;
  try {
    if (target.dataset.log) {
      const job = await api(`/jobs/${target.dataset.log}`);
      show("#job-log", job.log || "(无日志)");
    }
    if (target.dataset.retry) {
      await api(`/jobs/${target.dataset.retry}/retry`, { method: "POST" });
      await loadJobs();
    }
  } catch (err) {
    handleError(err);
  }
});

/* -------------------------------- settings -------------------------------- */

const SETTINGS_FIELDS = [
  "giteaUrl", "giteaToken", "webhookSecret", "adminToken", "webhookUrl",
  "llmUrl", "llmToken", "llmModel", "llmProtocol", "llmAuthHeader",
  "llmExtraHeaders", "rulePath",
];

async function loadSettings() {
  const settingsForm = document.getElementById("settings-form");
  const s = await api("/settings");
  for (const field of SETTINGS_FIELDS) {
    const input = settingsForm.elements[field];
    if (!input) continue;
    if (input.type === "password") input.value = "";
    else input.value = s[field] ?? "";
  }
  document.getElementById("hook-url").textContent = `${location.origin}/webhook/gitea`;
}

document.getElementById("settings-form").addEventListener("submit", async (ev) => {
  ev.preventDefault();
  const settingsForm = ev.target;
  const data = {};
  for (const field of SETTINGS_FIELDS) {
    const input = settingsForm.elements[field];
    if (input && input.value) data[field] = input.value;
  }
  try {
    await api("/settings", { method: "PUT", body: data });
    if (data.adminToken) {
      state.token = data.adminToken;
      localStorage.setItem(TOKEN_KEY, data.adminToken);
    }
    for (const field of SETTINGS_FIELDS) {
      const input = settingsForm.elements[field];
      if (input && input.type === "password") input.value = "";
    }
    show("#settings-result", "已保存。");
    await loadHealth();
  } catch (err) {
    if (err.status === 401) return handleError(err);
    show("#settings-result", err.message);
  }
});

document.getElementById("test-gitea").addEventListener("click", async () => {
  show("#settings-result", "测试中…");
  try { show("#settings-result", await api("/gitea/test", { method: "POST" })); }
  catch (err) { show("#settings-result", err.message); }
});

document.getElementById("test-llm").addEventListener("click", async () => {
  show("#settings-result", "测试中，请稍候…");
  try { show("#settings-result", await api("/selftest", { method: "POST" })); }
  catch (err) { show("#settings-result", err.message); }
});

/* --------------------------------- startup -------------------------------- */

async function refreshAll() {
  await loadRepos();
  await loadHealth();
}

async function boot() {
  await loadHealth();
  if (!token()) {
    showGate("");
    return;
  }
  try {
    await refreshAll();
    document.getElementById("sign-out").classList.remove("hidden");
  } catch (err) {
    handleError(err);
  }
}

boot();
setInterval(loadHealth, 10000);