const healthEl = document.getElementById("health");
const globalStatus = document.getElementById("globalStatus");
const lastUpdated = document.getElementById("lastUpdated");

const serverDot = document.getElementById("serverDot");
const webDot = document.getElementById("webDot");
const roamDot = document.getElementById("roamDot");

const buildBtn = document.getElementById("buildBtn");
const buildResultEl = document.getElementById("buildResult");
const logOutput = document.getElementById("logOutput");

const orgRoamBtn = document.getElementById("orgRoamBtn");
const orgRoamResult = document.getElementById("orgRoamResult");
const orgRoamLogs = document.getElementById("orgRoamLogs");

let webEventSource = null;
let roamEventSource = null;

/* =========================================
   HEALTH
========================================= */

async function fetchHealth() {
  try {
    const res = await fetch("/api/health");
    const text = await res.text();

    healthEl.textContent = "Online";
    healthEl.className = "badge ok";

    serverDot.className = "dot green";
    globalStatus.className = "global-ok";
    globalStatus.textContent = "🟢 All Systems Running Normally";

    lastUpdated.textContent =
      "Last checked: " + new Date().toLocaleTimeString();

  } catch {
    healthEl.textContent = "Offline";
    healthEl.className = "badge error";

    serverDot.className = "dot red";
    globalStatus.className = "global-error";
    globalStatus.textContent = "⚠ Attention Required";
  }
}

// Auto refresh every 10s
setInterval(fetchHealth, 10000);

/* =========================================
   LOG TOGGLE
========================================= */

document.querySelectorAll(".toggleLogs").forEach(btn => {
  btn.addEventListener("click", () => {
    const target = document.getElementById(btn.dataset.target);
    target.classList.toggle("hidden");

    btn.textContent =
      target.classList.contains("hidden")
        ? "Show technical details"
        : "Hide technical details";
  });
});

/* =========================================
   STREAM HELPERS
========================================= */

function startLogStream(url, outputEl, setter) {
  const source = new EventSource(url);

  source.onmessage = (event) => {
    outputEl.textContent += event.data + "\n";
    outputEl.scrollTop = outputEl.scrollHeight;
  };

  source.onerror = () => {
    source.close();
  };

  setter(source);
}

function closeStream(source) {
  if (source) source.close();
}

/* =========================================
   WEBSITE BUILD
========================================= */

async function runWebBuild() {
  if (!confirm("This will update the website. Continue?")) return;

  buildBtn.disabled = true;
  buildResultEl.textContent = "🔄 Updating website...";
  webDot.className = "dot yellow";
  logOutput.textContent = "";

  try {
    const res = await fetch("/api/build-web", { method: "POST" });
    if (!res.ok) throw new Error();

    closeStream(webEventSource);

    startLogStream("/api/build-web/logs", logOutput, src => webEventSource = src);

    pollWebStatus();

  } catch {
    buildResultEl.textContent = "❌ Could not start update";
    buildBtn.disabled = false;
    webDot.className = "dot red";
  }
}

async function pollWebStatus() {
  const interval = setInterval(async () => {
    const res = await fetch("/api/build-web/status");
    const status = await res.json();

    if (!status.running) {
      clearInterval(interval);
      closeStream(webEventSource);
      buildBtn.disabled = false;

      if (status.lastExitCode === 0) {
        buildResultEl.textContent = "✅ Website updated successfully";
        webDot.className = "dot green";
      } else {
        buildResultEl.textContent =
          "⚠ Update finished with issue (code " + status.lastExitCode + ")";
        webDot.className = "dot red";
      }
    }
  }, 2000);
}

/* =========================================
   ORG ROAM BUILD
========================================= */

async function runOrgRoamBuild() {
  if (!confirm("Refresh the knowledge base?")) return;

  orgRoamBtn.disabled = true;
  orgRoamResult.textContent = "🔄 Refreshing notes...";
  roamDot.className = "dot yellow";
  orgRoamLogs.textContent = "";

  try {
    const res = await fetch("/api/build-roam", { method: "POST" });
    if (!res.ok) throw new Error();

    closeStream(roamEventSource);

    startLogStream("/api/build-roam/logs", orgRoamLogs, src => roamEventSource = src);

    pollRoamStatus();

  } catch {
    orgRoamResult.textContent = "❌ Could not start refresh";
    orgRoamBtn.disabled = false;
    roamDot.className = "dot red";
  }
}

async function pollRoamStatus() {
  const interval = setInterval(async () => {
    const res = await fetch("/api/build-roam/status");
    const status = await res.json();

    if (!status.running) {
      clearInterval(interval);
      closeStream(roamEventSource);
      orgRoamBtn.disabled = false;

      if (status.lastExitCode === 0) {
        orgRoamResult.textContent = "✅ Notes refreshed successfully";
        roamDot.className = "dot green";
      } else {
        orgRoamResult.textContent =
          "⚠ Refresh finished with issue (code " + status.lastExitCode + ")";
        roamDot.className = "dot red";
      }
    }
  }, 2000);
}

/* =========================================
   DAILY MESSAGE
========================================= */

const messages = [
  "You are my favourite person.",
];

function setDailyMessage() {
  const today = new Date().toDateString();
  const index = today.split("").reduce((acc, char) => acc + char.charCodeAt(0), 0) % messages.length;

  document.getElementById("dailyMessage").textContent = messages[index];
}

setDailyMessage();

/* =========================================
   COUNTDOWN (LIVE - UPDATES EVERY SECOND)
========================================= */

function startCountdown() {
  const targetDate = new Date("2026-08-03T00:00:00"); // change this
  const label = "Nikah";

  const countdownEl = document.getElementById("countdownText");

  function updateCountdown() {
    const now = new Date();
    const diff = targetDate - now;

    if (diff <= 0) {
      countdownEl.textContent = `${label} is happening now! 🎉`;
      clearInterval(interval);
      return;
    }

    const days = Math.floor(diff / (1000 * 60 * 60 * 24));
    const hours = Math.floor((diff / (1000 * 60 * 60)) % 24);
    const minutes = Math.floor((diff / (1000 * 60)) % 60);
    const seconds = Math.floor((diff / 1000) % 60);

    countdownEl.textContent =
      `${label} in ${days}d ${hours}h ${minutes}m ${seconds}s`;
  }

  updateCountdown();
  const interval = setInterval(updateCountdown, 1000);
}

startCountdown();


/* =========================================
   INIT
========================================= */

fetchHealth();
buildBtn.addEventListener("click", runWebBuild);
orgRoamBtn.addEventListener("click", runOrgRoamBuild);