(function () {
  const jobID = window.location.pathname.split("/").pop();
  const progressFill = document.querySelector(".progress-fill[data-progress]");
  const progressText = document.getElementById("job-progress-text");
  const statusBadge = document.getElementById("job-status-badge");
  const tasksRefreshBtn = document.getElementById("tasks-refresh");
  const tasksFragment = document.getElementById("tasks-fragment");
  const filesRefreshBtn = document.getElementById("files-refresh");
  const filesFragment = document.getElementById("files-fragment");
  const cancelJobBtn = document.getElementById("cancel-job-btn");
  const deleteJobBtn = document.getElementById("delete-job-btn");
  const previewModal = document.getElementById("exr-preview-modal");
  const previewImage = document.getElementById("exr-preview-image");
  const previewLoading = document.getElementById("exr-preview-loading");
  const previewError = document.getElementById("exr-preview-error");
  const previewName = document.getElementById("exr-preview-name");
  let lastJobSnapshot = null;
  let lastSmartRefreshAt = 0;
  if (progressFill) {
    const value = Number(progressFill.getAttribute("data-progress") || "0");
    const bounded = Math.max(0, Math.min(100, value));
    progressFill.style.width = `${bounded}%`;
  }

  function statusClass(status) {
    const normalized = String(status || "").toLowerCase();
    if (normalized === "completed") return "status-completed";
    if (normalized === "running") return "status-running";
    if (normalized === "failed") return "status-failed";
    if (normalized === "cancelled") return "status-cancelled";
    return "status-pending";
  }

  function applyJobState(job) {
    if (!job) return;
    const normalizedStatus = String(job.status || "pending").toLowerCase();
    const canCancel = normalizedStatus === "pending" || normalizedStatus === "running";
    const canDelete = normalizedStatus === "completed" || normalizedStatus === "failed" || normalizedStatus === "cancelled";
    const progressValue = Math.max(0, Math.min(100, Number(job.progress || 0)));
    if (progressFill) {
      progressFill.style.width = `${progressValue}%`;
      progressFill.setAttribute("data-progress", String(Math.round(progressValue)));
    }
    if (progressText) {
      progressText.textContent = `${Math.round(progressValue)}%`;
    }
    if (statusBadge) {
      statusBadge.textContent = normalizedStatus;
      statusBadge.classList.remove("status-pending", "status-running", "status-completed", "status-failed", "status-cancelled");
      statusBadge.classList.add(statusClass(job.status));
    }
    if (cancelJobBtn) {
      cancelJobBtn.classList.toggle("hidden", !canCancel);
    }
    if (deleteJobBtn) {
      deleteJobBtn.classList.toggle("hidden", !canDelete);
    }
  }

  function refreshTasksAndFiles() {
    if (!window.htmx) return;
    if (tasksFragment) {
      htmx.ajax("GET", `/ui/fragments/jobs/${jobID}/tasks`, "#tasks-fragment");
    }
    if (filesFragment) {
      htmx.ajax("GET", `/ui/fragments/jobs/${jobID}/files`, "#files-fragment");
    }
    lastSmartRefreshAt = Date.now();
  }

  async function pollJobState() {
    try {
      const res = await fetch(`/api/jobs/${jobID}`, { credentials: "include" });
      if (!res.ok) return;
      const job = await res.json();
      applyJobState(job);

      const snapshot = {
        status: String(job.status || ""),
        progress: Math.round(Number(job.progress || 0)),
        startedAt: job.started_at || "",
        completedAt: job.completed_at || "",
      };
      const changed =
        !lastJobSnapshot ||
        snapshot.status !== lastJobSnapshot.status ||
        snapshot.progress !== lastJobSnapshot.progress ||
        snapshot.startedAt !== lastJobSnapshot.startedAt ||
        snapshot.completedAt !== lastJobSnapshot.completedAt;
      lastJobSnapshot = snapshot;

      // Smart refresh fragments only when job state changes.
      if (changed) {
        refreshTasksAndFiles();
        return;
      }

      // Fallback while running: refresh infrequently even without visible progress deltas.
      if (snapshot.status === "running" && Date.now() - lastSmartRefreshAt > 12000) {
        refreshTasksAndFiles();
      }
    } catch (_) {
      // Keep UI usable even if polling briefly fails.
    }
  }

  if (tasksRefreshBtn && tasksFragment && window.htmx) {
    tasksRefreshBtn.addEventListener("click", () => {
      htmx.ajax("GET", `/ui/fragments/jobs/${jobID}/tasks`, "#tasks-fragment");
    });
  }
  if (filesRefreshBtn && filesFragment && window.htmx) {
    filesRefreshBtn.addEventListener("click", () => {
      htmx.ajax("GET", `/ui/fragments/jobs/${jobID}/files`, "#files-fragment");
    });
  }
  pollJobState();
  setInterval(pollJobState, 2500);

  async function apiRequest(url, method) {
    const res = await fetch(url, {
      method,
      credentials: "include",
      headers: { "Content-Type": "application/json" },
    });
    const data = await res.json().catch(() => ({}));
    if (!res.ok) {
      throw new Error(data.error || "Request failed");
    }
    return data;
  }

  function closePreviewModal() {
    if (!previewModal) return;
    previewModal.classList.add("hidden");
    if (previewImage) {
      previewImage.classList.add("hidden");
      previewImage.removeAttribute("src");
    }
    if (previewLoading) previewLoading.classList.remove("hidden");
    if (previewError) {
      previewError.classList.add("hidden");
      previewError.textContent = "";
    }
  }

  function openPreviewModal(url, name) {
    if (!previewModal || !previewImage) return;
    previewModal.classList.remove("hidden");
    if (previewName) previewName.textContent = name ? `File: ${name}` : "";
    if (previewLoading) previewLoading.classList.remove("hidden");
    if (previewError) {
      previewError.classList.add("hidden");
      previewError.textContent = "";
    }
    previewImage.classList.add("hidden");
    previewImage.onload = () => {
      if (previewLoading) previewLoading.classList.add("hidden");
      previewImage.classList.remove("hidden");
    };
    previewImage.onerror = () => {
      if (previewLoading) previewLoading.classList.add("hidden");
      if (previewError) {
        previewError.textContent = "Failed to load preview image.";
        previewError.classList.remove("hidden");
      }
    };
    previewImage.src = url;
  }

  document.body.addEventListener("click", async (e) => {
    const previewBtn = e.target.closest("[data-exr-preview-url]");
    if (previewBtn) {
      const url = previewBtn.getAttribute("data-exr-preview-url");
      const name = previewBtn.getAttribute("data-exr-preview-name");
      if (url) {
        openPreviewModal(url, name || "");
      }
      return;
    }

    const modalClose = e.target.closest("[data-modal-close]");
    if (modalClose) {
      closePreviewModal();
      return;
    }

    const cancelBtn = e.target.closest("[data-cancel-job]");
    const deleteBtn = e.target.closest("[data-delete-job]");
    if (!cancelBtn && !deleteBtn) return;
    const id = (cancelBtn || deleteBtn).getAttribute(cancelBtn ? "data-cancel-job" : "data-delete-job");
    try {
      if (cancelBtn) {
        if (!confirm("Cancel this job?")) return;
        await apiRequest(`/api/jobs/${id}`, "DELETE");
      } else {
        if (!confirm("Delete this job permanently?")) return;
        await apiRequest(`/api/jobs/${id}/delete`, "POST");
        window.location.href = "/jobs";
        return;
      }
      window.location.reload();
    } catch (err) {
      alert(err.message);
    }
  });

  document.addEventListener("keydown", (e) => {
    if (e.key === "Escape") {
      closePreviewModal();
    }
  });

  const taskSelect = document.getElementById("task-log-task-id");
  const levelFilter = document.getElementById("task-log-level-filter");
  const autoRefreshToggle = document.getElementById("task-log-auto-refresh");
  const followToggle = document.getElementById("task-log-follow");
  const refreshBtn = document.getElementById("task-log-refresh");
  const copyBtn = document.getElementById("task-log-copy");
  const output = document.getElementById("task-log-output");
  const statusEl = document.getElementById("task-log-status");
  const state = {
    timer: null,
    activeTaskID: "",
    lastLogID: 0,
    logs: [],
    seenIDs: new Set(),
  };

  function setStatus(text) {
    if (statusEl) statusEl.textContent = text;
  }

  function levelClass(level) {
    const normalized = String(level || "INFO").toUpperCase();
    if (normalized === "ERROR") return "log-error";
    if (normalized === "WARN") return "log-warn";
    if (normalized === "DEBUG") return "log-debug";
    return "log-info";
  }

  function formatTime(ts) {
    if (!ts) return "--:--:--";
    const d = new Date(ts);
    if (Number.isNaN(d.getTime())) return "--:--:--";
    return d.toLocaleTimeString();
  }

  function renderLogs() {
    if (!output) return;
    const selectedLevel = (levelFilter?.value || "").toUpperCase();
    const filtered = state.logs.filter((entry) => {
      if (!selectedLevel) return true;
      return String(entry.log_level || "").toUpperCase() === selectedLevel;
    });

    if (filtered.length === 0) {
      output.innerHTML = '<div class="log-line empty">No logs yet.</div>';
      return;
    }

    output.innerHTML = filtered.map((entry) => {
      const level = String(entry.log_level || "INFO").toUpperCase();
      const step = entry.step_name ? ` <span class="log-step">(${entry.step_name})</span>` : "";
      const message = String(entry.message || "").replaceAll("&", "&amp;").replaceAll("<", "&lt;").replaceAll(">", "&gt;");
      return `<div class="log-line">
        <span class="log-time">${formatTime(entry.created_at)}</span>
        <span class="log-level ${levelClass(level)}">${level}</span>${step}
        <span class="log-message">${message}</span>
      </div>`;
    }).join("");

    if (followToggle?.checked) {
      output.scrollTop = output.scrollHeight;
    }
  }

  function getVisibleLogs() {
    const selectedLevel = (levelFilter?.value || "").toUpperCase();
    return state.logs.filter((entry) => {
      if (!selectedLevel) return true;
      return String(entry.log_level || "").toUpperCase() === selectedLevel;
    });
  }

  function logsToText(entries) {
    return entries.map((entry) => {
      const level = String(entry.log_level || "INFO").toUpperCase();
      const step = entry.step_name ? ` (${entry.step_name})` : "";
      return `[${formatTime(entry.created_at)}] [${level}]${step} ${entry.message || ""}`;
    }).join("\n");
  }

  function collectTaskOptions() {
    if (!taskSelect) return;
    const buttons = document.querySelectorAll("[data-view-logs-task-id]");
    const current = taskSelect.value;

    taskSelect.innerHTML = '<option value="">Choose a task...</option>';
    buttons.forEach((btn) => {
      const id = btn.getAttribute("data-view-logs-task-id");
      if (!id) return;
      const row = btn.closest("tr");
      const status = row?.querySelector(".status")?.textContent?.trim() || "";
      const type = row?.children?.[1]?.textContent?.trim() || "";
      const option = document.createElement("option");
      option.value = id;
      option.textContent = `#${id} ${type ? `(${type})` : ""} ${status ? `- ${status}` : ""}`.trim();
      taskSelect.appendChild(option);
    });

    if (current && taskSelect.querySelector(`option[value="${current}"]`)) {
      taskSelect.value = current;
    }
  }

  async function fetchLogs({ reset = false, full = false } = {}) {
    const taskID = taskSelect?.value?.trim();
    if (!taskID) {
      setStatus("Select a task to view logs.");
      return;
    }

    if (reset || taskID !== state.activeTaskID) {
      state.activeTaskID = taskID;
      state.lastLogID = 0;
      state.logs = [];
      state.seenIDs.clear();
      renderLogs();
    }

    const params = new URLSearchParams();
    params.set("limit", "0"); // backend: 0 = no limit
    if (!full && state.lastLogID > 0) {
      params.set("since_id", String(state.lastLogID));
    }

    try {
      const res = await fetch(`/api/jobs/${jobID}/tasks/${taskID}/logs?${params.toString()}`, {
        credentials: "include",
      });
      if (!res.ok) {
        setStatus(`Failed to fetch logs (HTTP ${res.status}).`);
        return;
      }

      const payload = await res.json();
      const rows = Array.isArray(payload) ? payload : (payload.logs || []);
      if (rows.length > 0) {
        for (const row of rows) {
          const id = Number(row.id || 0);
          if (id > 0 && !state.seenIDs.has(id)) {
            state.seenIDs.add(id);
            state.logs.push(row);
            if (id > state.lastLogID) state.lastLogID = id;
          }
        }
        if (!Array.isArray(payload) && Number(payload.last_id || 0) > state.lastLogID) {
          state.lastLogID = Number(payload.last_id);
        }
      }

      setStatus(`Task #${taskID}: ${state.logs.length} log line(s).`);
      renderLogs();
    } catch (err) {
      setStatus(`Failed to fetch logs: ${err.message}`);
    }
  }

  function restartPolling() {
    if (state.timer) {
      clearInterval(state.timer);
      state.timer = null;
    }
    if (!autoRefreshToggle?.checked) return;
    state.timer = setInterval(() => {
      if (taskSelect?.value) {
        fetchLogs();
      }
    }, 2000);
  }

  if (tasksFragment) {
    tasksFragment.addEventListener("htmx:afterSwap", () => {
      collectTaskOptions();
    });
  }
  collectTaskOptions();

  document.body.addEventListener("click", (e) => {
    const viewBtn = e.target.closest("[data-view-logs-task-id]");
    if (!viewBtn || !taskSelect) return;
    const taskID = viewBtn.getAttribute("data-view-logs-task-id");
    if (!taskID) return;
    taskSelect.value = taskID;
    fetchLogs({ reset: true, full: true });
  });

  if (taskSelect) {
    taskSelect.addEventListener("change", () => fetchLogs({ reset: true, full: true }));
  }
  if (levelFilter) {
    levelFilter.addEventListener("change", renderLogs);
  }
  if (refreshBtn) {
    refreshBtn.addEventListener("click", () => fetchLogs({ reset: true, full: true }));
  }
  if (copyBtn) {
    copyBtn.addEventListener("click", async () => {
      const visible = getVisibleLogs();
      if (visible.length === 0) {
        setStatus("No logs to copy.");
        return;
      }
      try {
        await navigator.clipboard.writeText(logsToText(visible));
        setStatus(`Copied ${visible.length} log line(s).`);
      } catch (_) {
        setStatus("Clipboard copy failed.");
      }
    });
  }
  if (autoRefreshToggle) {
    autoRefreshToggle.addEventListener("change", restartPolling);
  }

  restartPolling();
})();