const runtimeFieldIds = [
  "business_start", "business_end", "turnaround_base", "golden_start", "golden_end",
  "efficiency_enabled", "efficiency_penalty_coef", "eff_daily_delta_cap",
  "rule1_enabled", "rule1_gap",
  "rule2_enabled", "rule2_threshold", "rule2_window_minutes", "rule2_penalty", "rule2_exempt_ranges",
  "rule3_enabled", "rule3_gap_minutes", "rule3_penalty",
  "rule4_enabled", "rule4_earliest", "rule4_latest",
  "rule9_enabled", "rule9_hot_top_n", "rule9_min_ratio", "rule9_penalty",
  "rule11_enabled", "rule11_after_time", "rule11_penalty",
  "rule12_enabled", "rule12_penalty_each",
  "rule13_enabled", "rule13_forbidden_halls", "tms_allowance",
  "iterations", "random_seed"
];

const checkIds = [
  "efficiency_enabled", "rule1_enabled", "rule2_enabled", "rule3_enabled",
  "rule4_enabled", "rule9_enabled", "rule11_enabled", "rule12_enabled", "rule13_enabled"
];

const tuningColumns = [
  "选中", "影片", "今日场次", "今日黄金场次", "今日全天效率", "今日黄金效率",
  "最少场次", "最多场次", "固定场次", "最少黄金场次", "最多黄金场次", "最低场次占比", "最高场次占比"
];

const readOnlyColumns = new Set(["影片", "今日场次", "今日黄金场次", "今日全天效率", "今日黄金效率"]);
const boolColumns = new Set(["选中"]);
const integerColumns = new Set(["最少场次", "最多场次", "固定场次", "最少黄金场次", "最多黄金场次"]);
const floatColumns = new Set(["最低场次占比", "最高场次占比"]);
const sessionConstraintColumns = ["最少场次", "最多场次", "固定场次", "最少黄金场次", "最多黄金场次"];
const ratioConstraintColumns = ["最低场次占比", "最高场次占比"];

const state = {
  runtimeCfg: null,
  bundle: null,
  tuningRows: [],
  jobState: null,
  results: null,
  activeCandidateIndex: 0,
  pollTimer: null,
};

function deepClone(v) {
  if (typeof structuredClone === "function") {
    return structuredClone(v);
  }
  return JSON.parse(JSON.stringify(v));
}

function $(id) {
  return document.getElementById(id);
}

function sleep(ms) {
  return new Promise((resolve) => setTimeout(resolve, ms));
}

async function requestJSON(url, options = {}) {
  const init = {
    headers: { "Content-Type": "application/json" },
    credentials: "same-origin",
    ...options,
  };
  const resp = await fetch(url, init);
  let data = {};
  try {
    data = await resp.json();
  } catch {
    data = {};
  }
  if (!resp.ok || data.success === false) {
    const msg = data.error || data.message || `请求失败: ${resp.status}`;
    throw new Error(msg);
  }
  return data;
}

function showMessage(text, type = "info", ttl = 2800) {
  const el = $("message");
  el.className = `message ${type}`;
  el.textContent = text;
  el.classList.remove("hidden");
  if (ttl > 0) {
    setTimeout(() => {
      el.classList.add("hidden");
    }, ttl);
  }
}

function getDatePlusOne(dateText) {
  const d = new Date(`${dateText}T00:00:00`);
  if (Number.isNaN(d.getTime())) {
    return "-";
  }
  d.setDate(d.getDate() + 1);
  return d.toISOString().slice(0, 10);
}

function updateTargetDateTip() {
  const base = $("base_date").value;
  $("target_date_tip").textContent = getDatePlusOne(base);
}

function toNumberOrNull(raw, parseFloatMode = false) {
  const val = String(raw ?? "").trim();
  if (val === "") {
    return null;
  }
  const num = parseFloatMode ? Number.parseFloat(val) : Number.parseInt(val, 10);
  return Number.isFinite(num) ? num : null;
}

function collectMaintenanceBlocks() {
  const tbody = $("maintenance_table").querySelector("tbody");
  const rows = Array.from(tbody.querySelectorAll("tr"));
  return rows
    .map((tr) => {
      const hall = tr.querySelector("input[data-key='hall']")?.value?.trim() || "";
      const start = tr.querySelector("input[data-key='start']")?.value?.trim() || "";
      const end = tr.querySelector("input[data-key='end']")?.value?.trim() || "";
      return { hall, start, end };
    })
    .filter((x) => x.hall && x.start && x.end);
}

function collectRuntimeCfg() {
  const cfg = {};
  for (const id of runtimeFieldIds) {
    const el = $(id);
    if (!el) continue;
    if (checkIds.includes(id)) {
      cfg[id] = !!el.checked;
    } else if (el.type === "number") {
      cfg[id] = el.step && String(el.step).includes(".")
        ? Number.parseFloat(el.value || "0")
        : Number.parseInt(el.value || "0", 10);
    } else {
      cfg[id] = el.value;
    }
  }
  cfg.maintenance_blocks = collectMaintenanceBlocks();
  return cfg;
}

function setMaintenanceRows(rows = []) {
  const tbody = $("maintenance_table").querySelector("tbody");
  tbody.innerHTML = "";
  const list = rows.length ? rows : [];
  for (const row of list) {
    appendMaintenanceRow(row);
  }
}

function appendMaintenanceRow(row = { hall: "", start: "", end: "" }) {
  const tbody = $("maintenance_table").querySelector("tbody");
  const tr = document.createElement("tr");
  tr.innerHTML = `
    <td><input type="text" data-key="hall" value="${escapeHtml(String(row.hall || ""))}" placeholder="2号厅 / 2"></td>
    <td><input type="text" data-key="start" value="${escapeHtml(String(row.start || ""))}" placeholder="14:00"></td>
    <td><input type="text" data-key="end" value="${escapeHtml(String(row.end || ""))}" placeholder="16:00"></td>
    <td><button type="button" class="btn secondary small">删除</button></td>
  `;
  tr.querySelector("button").addEventListener("click", () => tr.remove());
  tbody.appendChild(tr);
}

function setRuntimeCfg(cfg) {
  state.runtimeCfg = deepClone(cfg);
  for (const id of runtimeFieldIds) {
    const el = $(id);
    if (!el) continue;
    const value = cfg[id];
    if (checkIds.includes(id)) {
      el.checked = !!value;
    } else {
      el.value = value ?? "";
    }
  }
  setMaintenanceRows(cfg.maintenance_blocks || []);
  refreshEnableStates();
}

function refreshEnableStates() {
  $("efficiency_penalty_coef").disabled = !$("efficiency_enabled").checked;
  $("eff_daily_delta_cap").disabled = !$("efficiency_enabled").checked;

  $("rule1_gap").disabled = !$("rule1_enabled").checked;

  const rule2Enabled = $("rule2_enabled").checked;
  $("rule2_threshold").disabled = !rule2Enabled;
  $("rule2_window_minutes").disabled = !rule2Enabled;
  $("rule2_penalty").disabled = !rule2Enabled;

  const rule3Enabled = $("rule3_enabled").checked;
  $("rule3_gap_minutes").disabled = !rule3Enabled;
  $("rule3_penalty").disabled = !rule3Enabled;

  const rule4Enabled = $("rule4_enabled").checked;
  $("rule4_earliest").disabled = !rule4Enabled;
  $("rule4_latest").disabled = !rule4Enabled;

  const rule9Enabled = $("rule9_enabled").checked;
  $("rule9_hot_top_n").disabled = !rule9Enabled;
  $("rule9_min_ratio").disabled = !rule9Enabled;
  $("rule9_penalty").disabled = !rule9Enabled;

  const rule11Enabled = $("rule11_enabled").checked;
  $("rule11_after_time").disabled = !rule11Enabled;
  $("rule11_penalty").disabled = !rule11Enabled;

  $("rule12_penalty_each").disabled = !$("rule12_enabled").checked;
  $("rule13_forbidden_halls").disabled = !$("rule13_enabled").checked;
}

function renderSimpleTable(el, rows, columns = null) {
  el.innerHTML = "";
  if (!rows || rows.length === 0) {
    el.innerHTML = "<thead><tr><th>提示</th></tr></thead><tbody><tr><td>无数据</td></tr></tbody>";
    return;
  }

  const cols = columns || Object.keys(rows[0]);
  const thead = document.createElement("thead");
  const htr = document.createElement("tr");
  for (const c of cols) {
    const th = document.createElement("th");
    th.textContent = c;
    htr.appendChild(th);
  }
  thead.appendChild(htr);

  const tbody = document.createElement("tbody");
  for (const row of rows) {
    const tr = document.createElement("tr");
    for (const c of cols) {
      const td = document.createElement("td");
      const v = row[c];
      td.textContent = v === null || v === undefined ? "" : String(v);
      tr.appendChild(td);
    }
    tbody.appendChild(tr);
  }

  el.appendChild(thead);
  el.appendChild(tbody);
}

function renderMapTop(tableId, mapObj, keyTitle, valTitle, limit = 20) {
  const entries = Object.entries(mapObj || {}).slice(0, limit);
  const rows = entries.map(([k, v]) => ({ [keyTitle]: k, [valTitle]: v }));
  renderSimpleTable($(tableId), rows, [keyTitle, valTitle]);
}

function renderMetrics(container, items) {
  container.innerHTML = "";
  for (const item of items) {
    const card = document.createElement("div");
    card.className = "metric";
    card.innerHTML = `<div class="k">${escapeHtml(item.k)}</div><div class="v">${escapeHtml(String(item.v))}</div>`;
    container.appendChild(card);
  }
}

function getSelectedValues(selectId) {
  const el = $(selectId);
  if (!el) return [];
  return Array.from(el.selectedOptions).map((x) => x.value);
}

function setAllSelected(selectId, selected = true) {
  const el = $(selectId);
  if (!el) return;
  for (const opt of Array.from(el.options)) {
    opt.selected = !!selected;
  }
}

function renderExcludeEffect(effect) {
  const tip = $("exclude_effect_tip");
  if (!tip) return;
  const e = effect || {};
  const total = Number(e.total_count || 0);
  const removed = Number(e.removed_count || 0);
  const remaining = Number(e.remaining_count || Math.max(0, total - removed));
  const affectedMovies = Number(e.affected_movies || 0);
  const reasons = Object.entries(e.reason_breakdown || {})
    .map(([k, v]) => `${k}:${v}`)
    .join("；");

  if (!total) {
    tip.textContent = "尚未应用剔除。";
    return;
  }
  tip.textContent = `当前剔除效果：已剔除 ${removed}/${total} 场，剩余 ${remaining} 场，影响影片 ${affectedMovies} 部。${reasons ? ` 原因分布：${reasons}` : ""}`;
}

function renderBundle(bundle) {
  state.bundle = bundle;
  state.tuningRows = deepClone(bundle.tuning_rows || []);
  $("loaded_section").classList.remove("hidden");

  $("load_summary").textContent = `目标日期 ${bundle.target_str}，影片 ${bundle.movies_count} 部，已售锁定场 ${bundle.locked_count}。`;

  const exclude = $("exclude_select");
  exclude.innerHTML = "";
  const selectedSession = new Set(bundle.excluded_session_keys || []);
  for (const item of bundle.exclude_options || []) {
    const opt = document.createElement("option");
    opt.value = String(item.key ?? "");
    opt.textContent = String(item.label ?? "");
    opt.selected = selectedSession.has(opt.value);
    opt.dataset.suspected = item.suspected ? "1" : "0";
    exclude.appendChild(opt);
  }

  const movieSelect = $("exclude_movie_select");
  movieSelect.innerHTML = "";
  const selectedMovies = new Set(bundle.excluded_movies || []);
  for (const item of bundle.exclude_movie_options || []) {
    const opt = document.createElement("option");
    opt.value = String(item.value ?? "");
    opt.textContent = String(item.label ?? item.value ?? "");
    opt.selected = selectedMovies.has(opt.value);
    movieSelect.appendChild(opt);
  }

  const hallSelect = $("exclude_hall_select");
  hallSelect.innerHTML = "";
  const selectedHalls = new Set(bundle.excluded_halls || []);
  for (const item of bundle.exclude_hall_options || []) {
    const opt = document.createElement("option");
    opt.value = String(item.value ?? "");
    opt.textContent = String(item.label ?? item.value ?? "");
    opt.selected = selectedHalls.has(opt.value);
    hallSelect.appendChild(opt);
  }

  const rules = bundle.exclude_rules || {};
  $("exclude_rule_zero_sales").checked = !!rules.zero_sales;
  $("exclude_rule_early_morning").checked = !!rules.early_morning;
  renderExcludeEffect(bundle.exclude_effect || {});

  renderTuningTable();
}

function renderTuningTable() {
  const table = $("tuning_table");
  table.innerHTML = "";

  const thead = document.createElement("thead");
  const hr = document.createElement("tr");
  for (const c of tuningColumns) {
    const th = document.createElement("th");
    th.textContent = c;
    hr.appendChild(th);
  }
  thead.appendChild(hr);

  const tbody = document.createElement("tbody");
  for (let i = 0; i < state.tuningRows.length; i += 1) {
    const row = state.tuningRows[i] || {};
    const tr = document.createElement("tr");

    for (const col of tuningColumns) {
      const td = document.createElement("td");

      if (boolColumns.has(col)) {
        const input = document.createElement("input");
        input.type = "checkbox";
        input.checked = !!row[col];
        input.addEventListener("change", () => {
          state.tuningRows[i][col] = !!input.checked;
        });
        td.appendChild(input);
      } else if (readOnlyColumns.has(col)) {
        td.textContent = row[col] === null || row[col] === undefined ? "" : String(row[col]);
      } else if (integerColumns.has(col) || floatColumns.has(col)) {
        const input = document.createElement("input");
        input.type = "number";
        input.step = floatColumns.has(col) ? "0.1" : "1";
        input.value = row[col] === null || row[col] === undefined ? "" : String(row[col]);
        const update = () => {
          state.tuningRows[i][col] = toNumberOrNull(input.value, floatColumns.has(col));
        };
        input.addEventListener("input", update);
        input.addEventListener("change", update);
        td.appendChild(input);
      } else {
        const input = document.createElement("input");
        input.type = "text";
        input.value = row[col] === null || row[col] === undefined ? "" : String(row[col]);
        input.addEventListener("input", () => {
          state.tuningRows[i][col] = input.value;
        });
        input.addEventListener("change", () => {
          state.tuningRows[i][col] = input.value;
        });
        td.appendChild(input);
      }

      tr.appendChild(td);
    }

    tbody.appendChild(tr);
  }

  table.appendChild(thead);
  table.appendChild(tbody);
}

function collectExclusionPayload() {
  return {
    excluded_session_keys: getSelectedValues("exclude_select"),
    excluded_movies: getSelectedValues("exclude_movie_select"),
    excluded_halls: getSelectedValues("exclude_hall_select"),
    exclude_rules: {
      zero_sales: !!$("exclude_rule_zero_sales").checked,
      early_morning: !!$("exclude_rule_early_morning").checked,
    },
  };
}

function applyTuningBatchMutation(mutator, successMsg) {
  if (!state.tuningRows || state.tuningRows.length === 0) {
    showMessage("当前没有可编辑约束行", "warn");
    return;
  }
  const selectedIndexes = state.tuningRows
    .map((row, idx) => ({ idx, selected: !!row["选中"] }))
    .filter((x) => x.selected)
    .map((x) => x.idx);
  const targetIndexes = selectedIndexes.length
    ? selectedIndexes
    : state.tuningRows.map((_, idx) => idx);
  targetIndexes.forEach((idx) => mutator(state.tuningRows[idx], idx));
  renderTuningTable();
  showMessage(`${successMsg}（处理 ${targetIndexes.length} 行）`, "ok", 1800);
}

function setResultsHidden(hidden) {
  if (hidden) {
    $("results_section").classList.add("hidden");
  } else {
    $("results_section").classList.remove("hidden");
  }
}

function renderJobState(jobState) {
  state.jobState = jobState;

  if (!state.bundle && jobState.status !== "idle") {
    $("loaded_section").classList.remove("hidden");
  }

  const metrics = [
    { k: "任务状态", v: jobState.status || "idle" },
    { k: "当前进度", v: `${((jobState.progress || 0) * 100).toFixed(1)}%` },
    { k: "可行方案", v: jobState.feasible_count || 0 },
    { k: "硬性淘汰", v: jobState.hard_reject || 0 },
    { k: "已运行时长", v: `${(jobState.elapsed_seconds || 0).toFixed(1)}s` },
  ];
  renderMetrics($("job_metrics"), metrics);

  const progress = Math.max(0, Math.min(1, Number(jobState.progress || 0)));
  $("job_progress_bar").style.width = `${progress * 100}%`;

  if ((jobState.iterations || 0) > 0) {
    $("job_caption").textContent = `迭代进度：${jobState.iter_done || 0}/${jobState.iterations || 0}；构造失败 ${jobState.build_reject || 0}，硬规则淘汰 ${jobState.rule_reject || 0}；${jobState.message || ""}`;
  } else {
    $("job_caption").textContent = jobState.message || "";
  }

  renderMapTop("reject_reason_table", jobState.reject_reason_top || {}, "淘汰原因", "次数", 20);
  renderMapTop("reject_detail_table", jobState.reject_detail_top || {}, "详细原因", "次数", 20);

  $("run_btn").disabled = ["running", "paused"].includes(jobState.status);
  $("pause_btn").disabled = jobState.status !== "running";
  $("resume_btn").disabled = jobState.status !== "paused";
  $("stop_btn").disabled = !["running", "paused"].includes(jobState.status);
}

function renderRejectSummary(summary) {
  setResultsHidden(false);
  renderMetrics($("results_metrics"), [
    { k: "最近一次状态", v: state.jobState?.status || "-" },
    { k: "运行耗时", v: `${(summary.elapsed_seconds || 0).toFixed(1)}s` },
    { k: "构造阶段失败", v: summary.build_reject || 0 },
    { k: "硬性规则淘汰", v: summary.rule_reject || 0 },
  ]);
  renderMapTop("reason_stats_table", summary.reject_reason_stats || {}, "淘汰原因", "次数", 200);
  renderMapTop("detail_stats_table", summary.reject_detail_stats || {}, "详细原因", "次数", 200);
  renderSimpleTable($("phase_stats_table"), [], ["淘汰阶段", "次数"]);
  $("reject_examples").textContent = "";

  $("candidate_tabs").innerHTML = "";
  $("candidate_content").innerHTML = "";
}

function renderResults(data) {
  state.results = data;
  setResultsHidden(false);

  const s = data.summary || {};
  renderMetrics($("results_metrics"), [
    { k: "目标排片日期", v: data.target_str || "-" },
    { k: "可行方案数", v: s.total_feasible || 0 },
    { k: "硬性规则淘汰", v: s.hard_reject || 0 },
    { k: "已售锁定场", v: s.locked_count || 0 },
    { k: "生成耗时", v: `${(s.elapsed_seconds || 0).toFixed(1)}s` },
  ]);

  renderMapTop("phase_stats_table", s.reject_phase_stats || {}, "淘汰阶段", "次数", 20);
  renderMapTop("reason_stats_table", s.reject_reason_stats || {}, "淘汰原因", "次数", 200);
  renderMapTop("detail_stats_table", s.reject_detail_stats || {}, "详细原因", "次数", 200);

  const exampleLines = [];
  const examples = s.reject_examples || {};
  for (const [reason, arr] of Object.entries(examples)) {
    if (!arr || !arr.length) continue;
    exampleLines.push(`${reason}:`);
    for (const x of arr.slice(0, 3)) {
      exampleLines.push(`- ${x}`);
    }
  }
  $("reject_examples").textContent = exampleLines.join("\n");
  $("movie_targets_json").textContent = JSON.stringify(s.movie_targets || {}, null, 2);

  renderSimpleTable($("today_eff_table"), s.today_eff_rows || []);

  const tabs = $("candidate_tabs");
  tabs.innerHTML = "";
  const candidates = data.candidates || [];
  candidates.forEach((cand, idx) => {
    const btn = document.createElement("button");
    btn.type = "button";
    btn.className = `tab-btn${idx === 0 ? " active" : ""}`;
    btn.textContent = cand.title;
    btn.addEventListener("click", () => {
      state.activeCandidateIndex = idx;
      renderCandidate();
    });
    tabs.appendChild(btn);
  });

  state.activeCandidateIndex = 0;
  renderCandidate();
}

function renderCandidate() {
  const payload = state.results;
  if (!payload || !payload.candidates || payload.candidates.length === 0) {
    $("candidate_content").innerHTML = "";
    return;
  }

  const idx = Math.min(Math.max(0, state.activeCandidateIndex || 0), payload.candidates.length - 1);
  state.activeCandidateIndex = idx;
  const cand = payload.candidates[idx];

  const tabButtons = Array.from($("candidate_tabs").querySelectorAll(".tab-btn"));
  tabButtons.forEach((btn, i) => {
    btn.classList.toggle("active", i === idx);
  });

  const content = $("candidate_content");
  content.innerHTML = `
    <section class="subpanel">
      <h3>${escapeHtml(cand.title)}</h3>
      <div>${cand.gantt_html || "<div class='muted'>无甘特图</div>"}</div>
      <h4>评分拆解</h4>
      <div class="table-wrap"><table id="score_breakdown_table" class="simple-table"></table></div>
      <h4>结果汇总</h4>
      <div class="table-wrap"><table id="summary_table" class="simple-table"></table></div>
      <h4>排片明细</h4>
      <div class="table-wrap"><table id="schedule_table" class="simple-table"></table></div>
      <h4>🔍 场次合理性检查日志</h4>
      <pre class="code-block">${escapeHtml(cand.log_text || "")}</pre>
    </section>
  `;

  renderSimpleTable($("score_breakdown_table"), cand.score_breakdown || [], ["规则", "分值", "说明"]);
  renderSimpleTable($("summary_table"), cand.summary_table || []);
  renderSimpleTable($("schedule_table"), cand.schedule_table || []);
}

function escapeHtml(text) {
  return String(text)
    .replace(/&/g, "&amp;")
    .replace(/</g, "&lt;")
    .replace(/>/g, "&gt;")
    .replace(/"/g, "&quot;")
    .replace(/'/g, "&#039;");
}

async function saveConfig() {
  const runtime_cfg = collectRuntimeCfg();
  const data = await requestJSON("/api/config/save", {
    method: "POST",
    body: JSON.stringify({ runtime_cfg }),
  });
  setRuntimeCfg(data.runtime_cfg);
  showMessage("参数已保存", "ok");
}

async function resetConfig() {
  const data = await requestJSON("/api/config/reset", { method: "POST", body: "{}" });
  setRuntimeCfg(data.runtime_cfg);
  showMessage("已恢复默认参数", "ok");
}

async function loadData() {
  showMessage("正在加载数据，请稍候...", "info", 1200);
  const runtime_cfg = collectRuntimeCfg();
  const base_date = $("base_date").value;
  const data = await requestJSON("/api/load-data", {
    method: "POST",
    body: JSON.stringify({ base_date, runtime_cfg }),
  });
  setRuntimeCfg(data.runtime_cfg);
  renderBundle(data.bundle);
  renderJobState(await fetchJobStateRaw());
  setResultsHidden(true);
  showMessage(data.message || "数据加载完成", "ok");
}

async function applyExclusions() {
  if (!state.bundle) {
    showMessage("请先加载数据", "warn");
    return;
  }
  const payload = collectExclusionPayload();
  const data = await requestJSON("/api/update-exclusions", {
    method: "POST",
    body: JSON.stringify(payload),
  });
  renderBundle(data.bundle);
  showMessage(data.message || "剔除已应用并重算", "ok");
}

async function startJob() {
  if (!state.bundle) {
    showMessage("请先加载数据", "warn");
    return;
  }
  const data = await requestJSON("/api/job/start", {
    method: "POST",
    body: JSON.stringify({ tuning_rows: state.tuningRows }),
  });
  renderJobState(data.job_state || state.jobState || {});
  startPolling();
  setResultsHidden(true);
  showMessage(data.message || "后台任务已启动", "ok");
}

async function controlJob(action) {
  const data = await requestJSON("/api/job/control", {
    method: "POST",
    body: JSON.stringify({ action }),
  });
  renderJobState(data.job_state || {});
  showMessage(`已发送${action}指令`, "ok");
}

async function fetchJobStateRaw() {
  const data = await requestJSON("/api/job/state", { method: "GET" });
  return data.job_state || {};
}

async function fetchJobState() {
  const jobState = await fetchJobStateRaw();
  renderJobState(jobState);

  if (["running", "paused"].includes(jobState.status)) {
    startPolling();
  } else {
    stopPolling();
    if (["completed", "failed", "stopped"].includes(jobState.status)) {
      await sleep(200);
      await fetchResults();
    }
  }
}

async function fetchResults() {
  const target = state.bundle?.target_str || getDatePlusOne($("base_date").value);
  const data = await requestJSON(`/api/results?target_str=${encodeURIComponent(target)}`, { method: "GET" });

  if (data.has_results) {
    renderResults(data);
    showMessage("结果已更新", "ok", 1500);
    return;
  }

  if (data.reject_summary) {
    renderRejectSummary(data.reject_summary);
    showMessage("最近一次任务为失败/停止，已展示淘汰统计", "warn", 2400);
    return;
  }

  setResultsHidden(true);
}

function startPolling() {
  if (state.pollTimer) return;
  state.pollTimer = setInterval(() => {
    fetchJobState().catch((e) => {
      console.error(e);
      showMessage(e.message || "轮询失败", "err", 1800);
      stopPolling();
    });
  }, 900);
}

function stopPolling() {
  if (state.pollTimer) {
    clearInterval(state.pollTimer);
    state.pollTimer = null;
  }
}

async function init() {
  $("base_date").addEventListener("change", updateTargetDateTip);

  checkIds.forEach((id) => {
    $(id).addEventListener("change", refreshEnableStates);
  });

  $("add_maintenance_btn").addEventListener("click", () => appendMaintenanceRow());

  $("save_cfg_btn").addEventListener("click", async () => {
    try {
      await saveConfig();
    } catch (e) {
      showMessage(e.message, "err");
    }
  });

  $("reset_cfg_btn").addEventListener("click", async () => {
    try {
      await resetConfig();
    } catch (e) {
      showMessage(e.message, "err");
    }
  });

  $("load_data_btn").addEventListener("click", async () => {
    try {
      await loadData();
    } catch (e) {
      showMessage(e.message, "err", 3600);
    }
  });

  $("apply_exclude_btn").addEventListener("click", async () => {
    try {
      await applyExclusions();
    } catch (e) {
      showMessage(e.message, "err", 3600);
    }
  });

  $("exclude_select_all_btn").addEventListener("click", () => {
    setAllSelected("exclude_select", true);
    showMessage("已全选场次，点击“应用剔除”后生效", "ok", 1400);
  });

  $("exclude_select_none_btn").addEventListener("click", () => {
    setAllSelected("exclude_select", false);
    showMessage("已取消全部场次选择", "ok", 1400);
  });

  $("exclude_select_suspected_btn").addEventListener("click", () => {
    const el = $("exclude_select");
    let count = 0;
    for (const opt of Array.from(el.options)) {
      const pick = opt.dataset.suspected === "1";
      opt.selected = pick;
      if (pick) count += 1;
    }
    showMessage(`已选中 ${count} 条疑似特殊场次`, "ok", 1600);
  });

  $("exclude_clear_btn").addEventListener("click", () => {
    setAllSelected("exclude_select", false);
    setAllSelected("exclude_movie_select", false);
    setAllSelected("exclude_hall_select", false);
    $("exclude_rule_zero_sales").checked = false;
    $("exclude_rule_early_morning").checked = false;
    showMessage("剔除条件已清空，点击“应用剔除”后恢复", "ok", 1800);
  });

  $("tuning_select_all_btn").addEventListener("click", () => {
    if (!state.tuningRows.length) {
      showMessage("请先加载数据", "warn");
      return;
    }
    state.tuningRows.forEach((row) => {
      row["选中"] = true;
    });
    renderTuningTable();
    showMessage("已全选所有影片行", "ok", 1500);
  });

  $("tuning_select_none_btn").addEventListener("click", () => {
    if (!state.tuningRows.length) {
      showMessage("请先加载数据", "warn");
      return;
    }
    state.tuningRows.forEach((row) => {
      row["选中"] = false;
    });
    renderTuningTable();
    showMessage("已取消所有影片勾选", "ok", 1500);
  });

  $("tuning_clear_sessions_btn").addEventListener("click", () => {
    applyTuningBatchMutation((row) => {
      sessionConstraintColumns.forEach((col) => {
        row[col] = null;
      });
    }, "场次约束已清空");
  });

  $("tuning_clear_ratio_btn").addEventListener("click", () => {
    applyTuningBatchMutation((row) => {
      ratioConstraintColumns.forEach((col) => {
        row[col] = null;
      });
    }, "占比约束已清空");
  });

  $("run_btn").addEventListener("click", async () => {
    try {
      await startJob();
    } catch (e) {
      showMessage(e.message, "err", 3200);
    }
  });

  $("pause_btn").addEventListener("click", async () => {
    try {
      await controlJob("pause");
    } catch (e) {
      showMessage(e.message, "err");
    }
  });

  $("resume_btn").addEventListener("click", async () => {
    try {
      await controlJob("resume");
    } catch (e) {
      showMessage(e.message, "err");
    }
  });

  $("stop_btn").addEventListener("click", async () => {
    try {
      await controlJob("stop");
    } catch (e) {
      showMessage(e.message, "err");
    }
  });

  try {
    const data = await requestJSON("/api/session", { method: "GET" });
    $("base_date").value = data.base_date;
    updateTargetDateTip();

    setRuntimeCfg(data.runtime_cfg || {});

    if (data.bundle) {
      renderBundle(data.bundle);
    }

    renderJobState(data.job_state || {});

    if (["running", "paused"].includes(data.job_state?.status)) {
      startPolling();
    }

    if (["completed", "failed", "stopped"].includes(data.job_state?.status)) {
      await fetchResults();
    }
  } catch (e) {
    showMessage(e.message || "初始化失败", "err", 5000);
  }
}

window.addEventListener("beforeunload", () => {
  stopPolling();
});

document.addEventListener("DOMContentLoaded", () => {
  init().catch((e) => {
    showMessage(e.message || "初始化失败", "err", 5000);
  });
});