/* iAOP 管理控制台（issue #135 / PRD 8.1/8.2）。
 *
 * 纯静态单页（无构建链），语义对齐后端内核：
 *   - 模型管理：core/model-framework/template_registry.py —— semver 校验、
 *     dev→staging→prod 逐级 promote、rollback 回退、全程 _log 审计；
 *   - 知识库管理：文档列表来自 web/chat/citations.json（模板 rag-kb 资产编译产物），
 *     上传在浏览器端索引（Demo；rag-kb HTTP 服务就绪后替换为真实索引管线）；
 *   - 告警确认：PRD 8.1 状态机 pending→acked→closed（P0 必须先确认再闭环，
 *     高利害人工确认），severity 配色取自 cockpit 的 alarm_panel.ti.json；
 *   - 审计查询：统一读取 UserStore 审计日志（#134），支持筛选与导出。
 *
 * 数据持久化在 localStorage（Demo 级）；后端 HTTP 服务就绪后替换 Store 读写即可。
 */
"use strict";

var INFER_BASE = "http://39.101.182.167:30800";
var MODELS_KEY = "iaop.admin.models.v1";
var ALERTS_KEY = "iaop.admin.alerts.v1";
var KB_KEY = "iaop.admin.kb.v1";

var currentUserName = "anonymous";
var severityStyles = {
  P0: { fg: "#ff4d4f", bg: "rgba(255,77,79,0.12)", border: "#ff4d4f" },
  P1: { fg: "#faad14", bg: "rgba(250,173,20,0.12)", border: "#faad14" },
  P2: { fg: "#1677ff", bg: "rgba(22,119,255,0.10)" }
};

/* ---------------- 工具 ---------------- */
function el(tag, cls, text) {
  var n = document.createElement(tag);
  if (cls) n.className = cls;
  if (text !== undefined) n.textContent = text;
  return n;
}
function load(key, fallback) {
  try { var v = localStorage.getItem(key); return v ? JSON.parse(v) : fallback; }
  catch (e) { return fallback; }
}
function save(key, obj) { localStorage.setItem(key, JSON.stringify(obj)); }
function audit(action, resource, reason) {
  if (typeof UserStore !== "undefined") UserStore.audit(action, resource, reason, currentUserName);
}
function download(filename, text) {
  var a = document.createElement("a");
  a.href = URL.createObjectURL(new Blob([text], { type: "application/json" }));
  a.download = filename; a.click(); URL.revokeObjectURL(a.href);
}

/* ---------------- 模型管理（template_registry 语义） ---------------- */
var STAGES = ["dev", "staging", "prod"];
var SEMVER_RE = /^\d+\.\d+\.\d+$/;
function semverKey(v) {
  var p = v.split(".").map(Number);
  return p[0] * 1e6 + p[1] * 1e3 + p[2];
}
function seedModels() {
  return [
    { name: "quality_forecast", version: "1.2.0", stage: "prod", author: "bot_dev1",
      updated_at: "2026-08-01T09:00:00Z" },
    { name: "anomaly_detection", version: "1.0.3", stage: "staging", author: "bot_dev1",
      updated_at: "2026-08-02T09:00:00Z" },
    { name: "process_optimizer", version: "0.9.1", stage: "dev", author: "engineer",
      updated_at: "2026-08-03T09:00:00Z" },
    { name: "cross_process_optimizer", version: "0.5.0", stage: "dev", author: "engineer",
      updated_at: "2026-08-04T09:00:00Z" }
  ];
}
function getModels() {
  var m = load(MODELS_KEY, null);
  if (!m) { m = seedModels(); save(MODELS_KEY, m); }
  return m;
}
function renderModels() {
  var tbody = document.getElementById("model-tbody");
  tbody.innerHTML = "";
  getModels().forEach(function (m, i) {
    var tr = el("tr");
    tr.appendChild(el("td", null, m.name));
    tr.appendChild(el("td", null, m.version));
    var tdStage = el("td");
    tdStage.appendChild(el("span", "stage stage-" + m.stage, m.stage));
    tr.appendChild(tdStage);
    tr.appendChild(el("td", null, m.author));
    tr.appendChild(el("td", null, (m.updated_at || "").slice(0, 10)));
    var ops = el("td");
    var idx = STAGES.indexOf(m.stage);
    if (idx < STAGES.length - 1) {
      var btn = el("button", null, "提升到 " + STAGES[idx + 1]);
      btn.onclick = function () { promoteModel(i); };
      ops.appendChild(btn);
    } else {
      ops.appendChild(el("span", "hint", "已达 prod"));
    }
    if (idx > 0) {
      var rb = el("button", null, "回滚到 " + STAGES[idx - 1]);
      rb.style.marginLeft = "6px";
      rb.onclick = function () { rollbackModel(i); };
      ops.appendChild(rb);
    }
    // issue #153：该模型的审计历史（promote/rollback/register 可追溯）
    var hist = el("button", null, "历史");
    hist.style.marginLeft = "6px";
    hist.onclick = function () { renderModelHistory(m.name); };
    ops.appendChild(hist);
    tr.appendChild(ops);
    tbody.appendChild(tr);
  });
}
function registerModel() {
  var name = document.getElementById("model-name").value.trim();
  var version = document.getElementById("model-version").value.trim();
  if (!name || !SEMVER_RE.test(version)) { alert("模型名必填，版本须为 semver（如 1.0.0）"); return; }
  var models = getModels();
  var existing = models.filter(function (m) { return m.name === name; });
  if (existing.length) {
    var latest = existing.reduce(function (a, b) {
      return semverKey(a.version) > semverKey(b.version) ? a : b;
    });
    if (semverKey(version) <= semverKey(latest.version)) {
      alert("版本必须大于当前最新 " + latest.version); return;
    }
  }
  models.push({ name: name, version: version, stage: "dev",
                author: currentUserName, updated_at: new Date().toISOString() });
  save(MODELS_KEY, models);
  audit("create", "model", name + "@" + version + " 注册（dev）");
  renderModels();
}
function promoteModel(i) {
  var models = getModels();
  var m = models[i];
  var next = STAGES[STAGES.indexOf(m.stage) + 1];
  if (!next) return;
  m.stage = next; m.updated_at = new Date().toISOString();
  save(MODELS_KEY, models);
  audit("promote", "model", m.name + "@" + m.version + " → " + next);
  renderModels();
}
function rollbackModel(i) {
  var models = getModels();
  var m = models[i];
  var prev = STAGES[STAGES.indexOf(m.stage) - 1];
  if (!prev) return;
  m.stage = prev; m.updated_at = new Date().toISOString();
  save(MODELS_KEY, models);
  audit("rollback", "model", m.name + "@" + m.version + " → " + prev);
  renderModels();
}
/* issue #153：按模型名过滤审计日志，展示版本/阶段变迁历史 */
function renderModelHistory(name) {
  var box = document.getElementById("model-history");
  box.hidden = false;
  box.innerHTML = "";
  box.appendChild(el("div", null, "模型「" + name + "」审计历史："));
  var log = (typeof UserStore !== "undefined") ? UserStore.auditLog() : [];
  var hits = log.filter(function (e) {
    return e.resource === "model" && e.reason.indexOf(name) >= 0;
  });
  if (!hits.length) { box.appendChild(el("div", "hint", "（暂无该模型的审计记录）")); return; }
  hits.slice().reverse().forEach(function (e) {
    box.appendChild(el("div", null,
      e.time.slice(0, 19).replace("T", " ") + " | " + e.actor + " | " + e.action + " | " + e.reason));
  });
}

/* ---------------- 知识库管理 ---------------- */
function getKbDocs() { return load(KB_KEY, []); }
function renderKb() {
  var tbody = document.getElementById("kb-tbody");
  tbody.innerHTML = "";
  getKbDocs().forEach(function (d, i) {
    var tr = el("tr");
    tr.appendChild(el("td", null, d.title));
    tr.appendChild(el("td", null, d.source));
    tr.appendChild(el("td", null, String(d.sections.length)));
    tr.appendChild(el("td", "idx-ok", d.status || "已索引"));
    var ops = el("td");
    var view = el("button", null, "查看引用");
    view.onclick = function () {
      var box = document.getElementById("kb-detail");
      box.hidden = false;
      box.innerHTML = "";
      box.appendChild(el("div", null, "《" + d.title + "》 " + d.source));
      d.sections.forEach(function (s) {
        box.appendChild(el("div", null, "§ " + s.heading + " — " + s.snippet));
      });
    };
    ops.appendChild(view);
    // issue #154：仅本地上传的文档可移除（模板资产只读，引用溯源不可破坏）
    if ((d.source || "").indexOf("upload/") === 0) {
      var del = el("button", null, "移除");
      del.style.marginLeft = "6px";
      del.onclick = function () {
        if (!confirm("移除文档「" + d.title + "」的本地索引？")) return;
        save(KB_KEY, getKbDocs().filter(function (x) { return x.source !== d.source; }));
        audit("delete", "kb_doc", d.source + " 移除本地索引");
        renderKb();
      };
      ops.appendChild(del);
    }
    tr.appendChild(ops);
    tbody.appendChild(tr);
  });
}
function loadKbFromCitations() {
  // 首选：web/chat/citations.json（模板知识库编译产物，含真实来源路径）
  fetch("../chat/citations.json").then(function (r) { return r.ok ? r.json() : null; })
    .then(function (d) {
      if (d && d.documents && !getKbDocs().length) {
        save(KB_KEY, d.documents.map(function (doc) {
          return { title: doc.title, source: doc.source,
                   sections: doc.sections, status: "已索引" };
        }));
      }
      renderKb();
    }).catch(function () { renderKb(); });
}
function uploadKb() {
  var f = document.getElementById("kb-file").files[0];
  if (!f) { alert("请选择 .md/.txt 文档"); return; }
  var reader = new FileReader();
  reader.onload = function () {
    var text = String(reader.result || "");
    var titleM = text.match(/^#\s+(.+)$/m);
    var docs = getKbDocs();
    docs.push({
      title: titleM ? titleM[1].trim() : f.name.replace(/\.\w+$/, ""),
      source: "upload/" + f.name,
      sections: [{ heading: "全文", snippet: text.replace(/\s+/g, " ").slice(0, 160) }],
      status: "已索引（本地）"
    });
    save(KB_KEY, docs);
    audit("create", "kb_doc", f.name + " 上传并索引");
    document.getElementById("kb-hint").textContent = f.name + " 已索引";
    renderKb();
  };
  reader.readAsText(f, "utf-8");
}

/* ---------------- 告警确认（PRD 8.1 状态机） ---------------- */
var ALERT_STATUS = { pending: "待处理", acked: "已确认", closed: "已闭环" };
function seedAlerts() {
  var now = Date.now();
  return [
    { id: "ALM-2001", severity: "P0", point: "CLF-01.TEMP",
      message: "氯化炉温度骤升越上限（920℃ > 900℃）",
      time: new Date(now - 12 * 60000).toLocaleString("zh-CN"), ts: now - 12 * 60000,
      status: "pending",
      sop: "1) 现场确认热电偶；2) 降氯气进料 10%；3) 通知值班长；4) 必要时切旁路。" },
    { id: "ALM-2002", severity: "P1", point: "RF-01.VAC",
      message: "还原炉真空度波动超阈值",
      time: new Date(now - 45 * 60000).toLocaleString("zh-CN"), ts: now - 45 * 60000,
      status: "pending",
      sop: "1) 检查真空泵组；2) 核查泄漏点；3) 加强监控 30 分钟。" },
    { id: "ALM-2003", severity: "P2", point: "ST-01.STEAM",
      message: "蒸汽流量低于经验区间",
      time: new Date(now - 90 * 60000).toLocaleString("zh-CN"), ts: now - 90 * 60000,
      status: "acked",
      sop: "记录趋势，纳入班报跟踪。" }
  ];
}
function getAlerts() {
  var a = load(ALERTS_KEY, null);
  if (!a) { a = seedAlerts(); save(ALERTS_KEY, a); }
  return a;
}
/* issue #155：确认超时自动升级（alarm_panel.ti.yaml ackTimeoutS=300，
 * 对齐 alarm_config.py 的 ack_timeout_s 语义：待处理超过阈值 severity 升一级，
 * 每次渲染前检查一次，升级落审计）。 */
var SEV_UP = { P2: "P1", P1: "P0" };
var ackTimeoutS = 300; // alarm plan 加载后被 severityColors 同源配置覆盖
function escalateOverdueAlerts() {
  var alerts = getAlerts();
  var changed = false;
  alerts.forEach(function (a) {
    if (a.status !== "pending" || !a.ts || !SEV_UP[a.severity]) return;
    if (Date.now() - a.ts > ackTimeoutS * 1000 && !a.escalated) {
      var from = a.severity;
      a.severity = SEV_UP[a.severity];
      a.escalated = true;
      changed = true;
      audit("update", "alert", a.id + " 超时未确认（>" + ackTimeoutS + "s），severity "
        + from + " → " + a.severity);
    }
  });
  if (changed) save(ALERTS_KEY, alerts);
}
function renderAlerts() {
  escalateOverdueAlerts();
  var filter = document.getElementById("alert-filter").value;
  var box = document.getElementById("alert-list");
  box.innerHTML = "";
  var rank = { P0: 3, P1: 2, P2: 1 };
  getAlerts()
    .filter(function (a) { return !filter || a.status === filter; })
    .sort(function (a, b) { return rank[b.severity] - rank[a.severity]; })
    .forEach(function (a) {
      var st = severityStyles[a.severity] || {};
      var item = el("div", "alert-item");
      item.style.color = st.fg || "inherit";
      item.style.background = st.bg || "transparent";
      if (st.border) item.style.borderLeftColor = st.border;
      item.appendChild(el("span", "sev", a.severity));
      item.appendChild(el("span", null, a.id + " · " + a.message));
      item.appendChild(el("span", "st", ALERT_STATUS[a.status]));
      item.onclick = function () { renderAlertDetail(a.id); };
      box.appendChild(item);
    });
}
function renderAlertDetail(id) {
  var a = getAlerts().find(function (x) { return x.id === id; });
  var box = document.getElementById("alert-detail");
  if (!a) return;
  box.innerHTML = "";
  box.appendChild(el("div", null, a.id + " · " + a.severity + " · " + a.point));
  box.appendChild(el("div", "hint", a.message + " · " + a.time + " · 状态：" + ALERT_STATUS[a.status]));
  var llm = el("div", "llm", "点击「生成 LLM 解释」获取可能原因与处置建议（PRD 场景A）");
  box.appendChild(llm);
  var btnLlm = el("button", "primary", "生成 LLM 解释");
  btnLlm.onclick = function () {
    btnLlm.disabled = true;
    llm.textContent = "生成中…";
    fetch(INFER_BASE + "/v1/chat/completions", {
      method: "POST", headers: { "Content-Type": "application/json" },
      body: JSON.stringify({ model: "iaop-ti-cl4-v1", max_tokens: 512, messages: [
        { role: "system", content: "你是工业报警解释助手，输出【可能原因】与【处置建议】。" },
        { role: "user", content: "告警 " + a.severity + " 点位 " + a.point + "：" + a.message }
      ] })
    }).then(function (r) { return r.json(); })
      .then(function (d) {
        llm.textContent = (d.choices && d.choices[0] && d.choices[0].message.content) || "（空响应）";
      })
      .catch(function (e) { llm.textContent = "解释生成失败：" + e.message; })
      .finally(function () { btnLlm.disabled = false; });
  };
  box.appendChild(btnLlm);
  box.appendChild(el("div", "sop", "SOP：" + a.sop));
  // 状态流转按钮（P0 高利害：必须先确认再闭环，PRD 8.1）
  var row = el("div", "row");
  if (a.status === "pending") {
    var ack = el("button", "primary", "确认告警");
    ack.onclick = function () { transitionAlert(a.id, "acked"); };
    row.appendChild(ack);
    if (a.severity === "P0") row.appendChild(el("span", "hint", "P0 高利害：确认后仍需人工复核闭环"));
  }
  if (a.status === "acked") {
    var close = el("button", "primary", "闭环");
    close.onclick = function () { transitionAlert(a.id, "closed"); };
    row.appendChild(close);
  }
  box.appendChild(row);
}
function transitionAlert(id, to) {
  var alerts = getAlerts();
  var a = alerts.find(function (x) { return x.id === id; });
  if (!a) return;
  a.status = to;
  save(ALERTS_KEY, alerts);
  audit(to === "acked" ? "ack" : "close", "alert", a.id + " " + a.severity + " → " + ALERT_STATUS[to]);
  renderAlerts(); renderAlertDetail(id);
}

/* ---------------- 审计查询 ---------------- */
function renderAudit() {
  var q = document.getElementById("audit-q").value.trim();
  var action = document.getElementById("audit-action").value;
  // issue #156：时间范围筛选（起止日期，含当日全天）
  var from = document.getElementById("audit-from").value;
  var to = document.getElementById("audit-to").value;
  var tbody = document.getElementById("audit-tbody");
  tbody.innerHTML = "";
  var log = (typeof UserStore !== "undefined") ? UserStore.auditLog() : [];
  log.slice().reverse()
    .filter(function (e) {
      if (action && e.action !== action) return false;
      if (q && (e.actor + e.resource + e.reason).indexOf(q) < 0) return false;
      var day = (e.time || "").slice(0, 10);
      if (from && day < from) return false;
      if (to && day > to) return false;
      return true;
    })
    .forEach(function (e) {
      var tr = el("tr");
      tr.appendChild(el("td", null, e.time.slice(0, 19).replace("T", " ")));
      tr.appendChild(el("td", null, e.actor));
      tr.appendChild(el("td", null, e.action));
      tr.appendChild(el("td", null, e.resource));
      tr.appendChild(el("td", null, e.reason));
      tbody.appendChild(tr);
    });
}

/* ---------------- 启动 ---------------- */
(function init() {
  function boot(user) {
    if (user) {
      currentUserName = user.username;
      document.getElementById("who").textContent = user.username + " · " + user.role;
    }
    document.querySelectorAll(".tab").forEach(function (tab) {
      tab.onclick = function () {
        document.querySelectorAll(".tab").forEach(function (t) { t.classList.remove("active"); });
        document.querySelectorAll(".page").forEach(function (p) { p.classList.remove("active"); });
        tab.classList.add("active");
        document.getElementById("page-" + tab.dataset.page).classList.add("active");
      };
    });
    document.getElementById("btn-register").onclick = registerModel;
    document.getElementById("btn-kb-upload").onclick = uploadKb;
    document.getElementById("alert-filter").onchange = renderAlerts;
    document.getElementById("btn-audit-filter").onclick = renderAudit;
    document.getElementById("audit-from").onchange = renderAudit;
    document.getElementById("audit-to").onchange = renderAudit;
    document.getElementById("btn-audit-export").onclick = function () {
      download("audit-export-" + Date.now() + ".json",
        JSON.stringify(typeof UserStore !== "undefined" ? UserStore.auditLog() : [], null, 2));
    };
    // severity 配色 + ackTimeoutS 资产（与驾驶舱同源；取不到用内置兜底）
    fetch("../cockpit/plans/alarm_panel.ti.json").then(function (r) {
      return r.ok ? r.json() : null;
    }).then(function (p) {
      if (p) {
        if (p.severityStyles) severityStyles = p.severityStyles;
        if (p.ackTimeoutS) ackTimeoutS = p.ackTimeoutS; // #155 超时升级阈值同源
        renderAlerts();
      }
    }).catch(function () {});
    renderModels(); loadKbFromCitations(); renderAlerts(); renderAudit();
  }
  // 认证守卫（#150 IAOP_AUTH，在则强制登录；纯静态独立运行时降级免登录演示）
  if (typeof IAOP_AUTH !== "undefined") {
    IAOP_AUTH.requireLoginElseRedirect("../auth/login.html").then(function (user) {
      if (user) boot(user);
    });
  } else {
    boot(null);
  }
})();