Hermes-ui/packages/client/src/components/hermes/chat/ChatPanel.vue

<script setup lang="ts">
import { renameSession, setSessionWorkspace, batchDeleteSessions, exportSession } from "@/api/hermes/sessions";
import { useChatStore, type Session } from "@/stores/hermes/chat";
import { useSessionBrowserPrefsStore } from "@/stores/hermes/session-browser-prefs";
import {
  NButton,
  NDropdown,
  NInput,
  NModal,
  NTooltip,
  NPopconfirm,
  useMessage,
} from "naive-ui";
import { computed, nextTick, onMounted, onUnmounted, ref, watch } from "vue";
import { useI18n } from "vue-i18n";
import { getSourceLabel } from "@/shared/session-display";
import { copyToClipboard } from "@/utils/clipboard";
import FolderPicker from "./FolderPicker.vue";
import ChatInput from "./ChatInput.vue";
import ConversationMonitorPane from "./ConversationMonitorPane.vue";
import MessageList from "./MessageList.vue";
import SessionListItem from "./SessionListItem.vue";
import DrawerPanel from "./DrawerPanel.vue";

const chatStore = useChatStore();
const sessionBrowserPrefsStore = useSessionBrowserPrefsStore();
const message = useMessage();
const { t } = useI18n();

const showDrawer = ref(false);
const drawerActiveTab = ref<"terminal" | "files">("files");

const currentMode = ref<"chat" | "live">("chat");

// Batch selection mode
const isBatchMode = ref(false);
const selectedSessionIds = ref<Set<string>>(new Set());

// Initialize synchronously from the media query so first paint is correct.
// On narrow viewports the session list is an absolute-positioned overlay
// (z-index 10) on top of the chat area; if we default to `true`, onMounted
// only flips it to `false` AFTER the first render, causing a visible flash
// where the session list covers the chat content ("auto-fixes after a
// moment" — that was the race).
const showSessions = ref(
  typeof window === "undefined" ||
    !window.matchMedia("(max-width: 768px)").matches,
);
let mobileQuery: MediaQueryList | null = null;
const isMobile = ref(false);

function handleSessionClick(sessionId: string) {
  chatStore.switchSession(sessionId);
  if (mobileQuery?.matches) showSessions.value = false;
}

function handleMobileChange(e: MediaQueryListEvent | MediaQueryList) {
  isMobile.value = e.matches;
  if (e.matches && showSessions.value) {
    showSessions.value = false;
  }
}

onMounted(() => {
  mobileQuery = window.matchMedia("(max-width: 768px)");
  handleMobileChange(mobileQuery);
  mobileQuery.addEventListener("change", handleMobileChange);
});

onUnmounted(() => {
  mobileQuery?.removeEventListener("change", handleMobileChange);
});
const showRenameModal = ref(false);
const renameValue = ref("");
const renameSessionId = ref<string | null>(null);
const renameInputRef = ref<InstanceType<typeof NInput> | null>(null);
const collapsedGroups = ref<Set<string>>(
  new Set(JSON.parse(localStorage.getItem("hermes_collapsed_groups") || "[]")),
);

// Source sort order: api_server first, cron last, others alphabetical
function sourceSortKey(source: string): number {
  if (source === "api_server") return -1;
  if (source === "cron") return 999;
  return 0;
}

function sortSessionsWithActiveFirst(items: Session[]): Session[] {
  return [...items].sort((a, b) => {
    return (b.updatedAt || 0) - (a.updatedAt || 0);
  });
}

// Group sessions by source, with sort order
interface SessionGroup {
  source: string;
  label: string;
  sessions: Session[];
}

const pinnedSessions = computed(() =>
  sortSessionsWithActiveFirst(
    chatStore.sessions.filter((session) =>
      sessionBrowserPrefsStore.isPinned(session.id),
    ),
  ),
);

const groupedSessions = computed<SessionGroup[]>(() => {
  const map = new Map<string, Session[]>();
  for (const s of chatStore.sessions) {
    if (sessionBrowserPrefsStore.isPinned(s.id)) continue;
    const key = s.source || "";
    if (!map.has(key)) map.set(key, []);
    map.get(key)!.push(s);
  }

  const keys = [...map.keys()].sort((a, b) => {
    const ka = sourceSortKey(a);
    const kb = sourceSortKey(b);
    if (ka !== kb) return ka - kb;
    return a.localeCompare(b);
  });

  return keys.map((key) => ({
    source: key,
    label: key ? getSourceLabel(key) : t("chat.other"),
    sessions: sortSessionsWithActiveFirst(map.get(key)!),
  }));
});

function toggleGroup(source: string) {
  const isExpanded = !collapsedGroups.value.has(source);
  if (isExpanded) {
    collapsedGroups.value = new Set([...collapsedGroups.value, source]);
  } else {
    collapsedGroups.value = new Set(
      groupedSessions.value.map((g) => g.source).filter((s) => s !== source),
    );
    const group = groupedSessions.value.find((g) => g.source === source);
    if (group?.sessions.length) {
      chatStore.switchSession(group.sessions[0].id);
    }
  }
  localStorage.setItem(
    "hermes_collapsed_groups",
    JSON.stringify([...collapsedGroups.value]),
  );
}

watch(
  groupedSessions,
  (groups) => {
    if (localStorage.getItem("hermes_collapsed_groups") !== null) {
      const activeSource = chatStore.activeSession?.source;
      if (activeSource && collapsedGroups.value.has(activeSource)) {
        collapsedGroups.value = new Set(
          [...collapsedGroups.value].filter(
            (source) => source !== activeSource,
          ),
        );
        localStorage.setItem(
          "hermes_collapsed_groups",
          JSON.stringify([...collapsedGroups.value]),
        );
      }
      return;
    }
    collapsedGroups.value = new Set(
      groups.slice(1).map((group) => group.source),
    );
    localStorage.setItem(
      "hermes_collapsed_groups",
      JSON.stringify([...collapsedGroups.value]),
    );
  },
  { once: true },
);

watch(
  () => [
    chatStore.sessionsLoaded,
    ...chatStore.sessions.map((session) => session.id),
  ],
  (value) => {
    const sessionIds = value.slice(1) as string[];
    if (!value[0] || sessionIds.length === 0) return;
    sessionBrowserPrefsStore.pruneMissingSessions(sessionIds);
  },
  { immediate: true },
);

const activeSessionTitle = computed(
  () => chatStore.activeSession?.title || t("chat.newChat"),
);

const headerTitle = computed(() =>
  currentMode.value === "live"
    ? t("chat.liveSessions")
    : activeSessionTitle.value,
);

const activeSessionSource = computed(() =>
  currentMode.value === "chat" ? chatStore.activeSession?.source || "" : "",
);

function handleNewChat() {
  chatStore.newChat();
}

async function copySessionId(id?: string) {
  const sessionId = id || chatStore.activeSessionId;
  if (sessionId) {
    const ok = await copyToClipboard(sessionId);
    if (ok) message.success(t("common.copied"));
    else message.error(t("common.copied") + " ✗");
  }
}

function handleDeleteSession(id: string) {
  sessionBrowserPrefsStore.removePinned(id);
  chatStore.deleteSession(id);
  message.success(t("chat.sessionDeleted"));
}

function toggleBatchMode() {
  isBatchMode.value = !isBatchMode.value;
  if (!isBatchMode.value) {
    selectedSessionIds.value.clear();
  }
}

function toggleSessionSelection(id: string) {
  if (selectedSessionIds.value.has(id)) {
    selectedSessionIds.value.delete(id);
  } else {
    selectedSessionIds.value.add(id);
  }
  selectedSessionIds.value = new Set(selectedSessionIds.value);
}

function isSessionSelected(id: string): boolean {
  return selectedSessionIds.value.has(id);
}

async function handleBatchDelete() {
  if (selectedSessionIds.value.size === 0) return;

  const ids = Array.from(selectedSessionIds.value);
  try {
    const result = await batchDeleteSessions(ids);
    if (result.deleted > 0) {
      // Remove from pinned sessions
      for (const id of ids) {
        sessionBrowserPrefsStore.removePinned(id);
      }

      // Remove deleted sessions from local store (without calling API again)
      // Use loadSessions to refresh from server instead of manual filtering
      await chatStore.loadSessions();

      message.success(t("chat.batchDeleteSuccess", { count: result.deleted }));
      if (result.failed > 0) {
        message.warning(t("chat.batchDeletePartial", { failed: result.failed }));
      }
    } else {
      message.error(t("chat.batchDeleteFailed"));
    }
  } catch (err: any) {
    message.error(t("chat.batchDeleteFailed"));
  } finally {
    isBatchMode.value = false;
    selectedSessionIds.value.clear();
  }
}

function selectAllSessions() {
  selectedSessionIds.value.clear();
  for (const session of chatStore.sessions) {
    if (session.id !== chatStore.activeSessionId) {
      selectedSessionIds.value.add(session.id);
    }
  }
  selectedSessionIds.value = new Set(selectedSessionIds.value);
}

const selectedCount = computed(() => selectedSessionIds.value.size);
const canSelectAll = computed(() => {
  return chatStore.sessions.some(s => s.id !== chatStore.activeSessionId);
});

const contextSessionId = ref<string | null>(null);
const contextSessionPinned = computed(() =>
  contextSessionId.value
    ? sessionBrowserPrefsStore.isPinned(contextSessionId.value)
    : false,
);

const contextMenuOptions = computed(() => [
  {
    label: t(contextSessionPinned.value ? "chat.unpin" : "chat.pin"),
    key: "pin",
  },
  { label: t("chat.rename"), key: "rename" },
  { label: t("chat.setWorkspace"), key: "workspace" },
  {
    label: t("chat.export"),
    key: "export",
    children: [
      {
        label: t("chat.exportFull"),
        key: "export-full",
        children: [
          { label: "JSON", key: "export-full-json" },
          { label: "TXT", key: "export-full-txt" },
        ],
      },
      {
        label: t("chat.exportCompressed"),
        key: "export-compressed",
        children: [
          { label: "JSON", key: "export-compressed-json" },
          { label: "TXT", key: "export-compressed-txt" },
        ],
      },
    ],
  },
  { label: t("chat.copySessionId"), key: "copy-id" },
]);

function handleContextMenu(e: MouseEvent, sessionId: string) {
  e.preventDefault();
  contextSessionId.value = sessionId;
  showContextMenu.value = true;
  contextMenuX.value = e.clientX;
  contextMenuY.value = e.clientY;
}

const showContextMenu = ref(false);
const contextMenuX = ref(0);
const contextMenuY = ref(0);

function parseExportKey(key: string): { mode: 'full' | 'compressed'; ext: 'json' | 'txt' } | null {
  if (key === 'export-full-json') return { mode: 'full', ext: 'json' }
  if (key === 'export-full-txt') return { mode: 'full', ext: 'txt' }
  if (key === 'export-compressed-json') return { mode: 'compressed', ext: 'json' }
  if (key === 'export-compressed-txt') return { mode: 'compressed', ext: 'txt' }
  return null
}

async function handleContextMenuSelect(key: string) {
  showContextMenu.value = false;
  if (!contextSessionId.value) return;
  if (key === "pin") {
    sessionBrowserPrefsStore.togglePinned(contextSessionId.value);
    return;
  }
  if (key === "copy-id") {
    copySessionId(contextSessionId.value);
  } else if (parseExportKey(key)) {
    const { mode, ext } = parseExportKey(key)!;
    const loadingMsg = mode === "compressed" ? message.loading(t("chat.exportCompressing"), { duration: 0 }) : null;
    try {
      await exportSession(contextSessionId.value, mode, ext);
      loadingMsg?.destroy();
      message.success(t("chat.exportSuccess"));
    } catch {
      loadingMsg?.destroy();
      message.error(t("chat.exportFailed"));
    }
  } else if (key === "workspace") {
    const session = chatStore.sessions.find(
      (s) => s.id === contextSessionId.value,
    );
    workspaceSessionId.value = contextSessionId.value;
    workspaceValue.value = session?.workspace || "";
    showWorkspaceModal.value = true;
  } else if (key === "rename") {
    const session = chatStore.sessions.find(
      (s) => s.id === contextSessionId.value,
    );
    renameSessionId.value = contextSessionId.value;
    renameValue.value = session?.title || "";
    showRenameModal.value = true;
    nextTick(() => {
      renameInputRef.value?.focus();
    });
  }
}

function handleClickOutside() {
  showContextMenu.value = false;
}

async function handleRenameConfirm() {
  if (!renameSessionId.value || !renameValue.value.trim()) return;
  const ok = await renameSession(
    renameSessionId.value,
    renameValue.value.trim(),
  );
  if (ok) {
    const session = chatStore.sessions.find(
      (s) => s.id === renameSessionId.value,
    );
    if (session) session.title = renameValue.value.trim();
    if (chatStore.activeSession?.id === renameSessionId.value) {
      chatStore.activeSession.title = renameValue.value.trim();
    }
    message.success(t("chat.renamed"));
  } else {
    message.error(t("chat.renameFailed"));
  }
  showRenameModal.value = false;
}

const showWorkspaceModal = ref(false);
const workspaceValue = ref("");
const workspaceSessionId = ref<string | null>(null);

async function handleWorkspaceConfirm() {
  if (!workspaceSessionId.value) return;
  const ok = await setSessionWorkspace(
    workspaceSessionId.value,
    workspaceValue.value || null,
  );
  if (ok) {
    const session = chatStore.sessions.find(
      (s) => s.id === workspaceSessionId.value,
    );
    if (session) session.workspace = workspaceValue.value || null;
    if (chatStore.activeSession?.id === workspaceSessionId.value) {
      chatStore.activeSession.workspace = workspaceValue.value || null;
    }
    message.success(t("chat.workspaceSet"));
  } else {
    message.error(t("chat.workspaceSetFailed"));
  }
  showWorkspaceModal.value = false;
}
</script>

<template>
  <div class="chat-panel">
    <div
      v-if="currentMode === 'chat'"
      class="session-backdrop"
      :class="{ active: showSessions }"
      @click="showSessions = false"
    />
    <aside
      v-if="currentMode === 'chat'"
      class="session-list"
      :class="{ collapsed: !showSessions }"
    >
      <div class="session-list-header">
        <span v-if="showSessions" class="session-list-title">{{
          t("chat.webUiSessions")
        }}</span>
        <div class="session-list-actions">
          <button class="session-close-btn" @click="showSessions = false">
            <svg
              width="14"
              height="14"
              viewBox="0 0 24 24"
              fill="none"
              stroke="currentColor"
              stroke-width="2"
            >
              <line x1="18" y1="6" x2="6" y2="18" />
              <line x1="6" y1="6" x2="18" y2="18" />
            </svg>
          </button>
          <NButton
            v-if="!isBatchMode"
            quaternary
            size="tiny"
            @click="toggleBatchMode"
            :title="t('chat.toggleBatchMode')"
          >
            <template #icon>
              <svg
                width="14"
                height="14"
                viewBox="0 0 24 24"
                fill="none"
                stroke="currentColor"
                stroke-width="2"
              >
                <path d="M9 11l3 3L22 4" />
                <path d="M21 12v7a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2h11" />
              </svg>
            </template>
          </NButton>
          <NButton
            v-if="isBatchMode"
            quaternary
            size="tiny"
            @click="selectAllSessions"
            :disabled="!canSelectAll"
            :title="t('chat.selectAll')"
          >
            <template #icon>
              <svg
                width="14"
                height="14"
                viewBox="0 0 24 24"
                fill="none"
                stroke="currentColor"
                stroke-width="2"
              >
                <path d="M9 11l3 3L22 4" />
                <path d="M21 12v7a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2V5a2 2 0 0 1 2-2h11" />
              </svg>
            </template>
          </NButton>
          <NPopconfirm
            v-if="isBatchMode && selectedCount > 0"
            @positive-click="handleBatchDelete"
          >
            <template #trigger>
              <NButton quaternary size="tiny" type="error">
                <template #icon>
                  <svg
                    width="14"
                    height="14"
                    viewBox="0 0 24 24"
                    fill="none"
                    stroke="currentColor"
                    stroke-width="2"
                  >
                    <polyline points="3 6 5 6 21 6" />
                    <path d="M19 6v14a2 2 0 0 1-2 2H7a2 2 0 0 1-2-2V6m3 0V4a2 2 0 0 1 2-2h4a2 2 0 0 1 2 2v2" />
                  </svg>
                </template>
              </NButton>
            </template>
            {{ t('chat.confirmBatchDelete', { count: selectedCount }) }}
          </NPopconfirm>
          <NButton
            v-if="isBatchMode"
            quaternary
            size="tiny"
            @click="toggleBatchMode"
          >
            <template #icon>
              <svg
                width="14"
                height="14"
                viewBox="0 0 24 24"
                fill="none"
                stroke="currentColor"
                stroke-width="2"
              >
                <line x1="18" y1="6" x2="6" y2="18" />
                <line x1="6" y1="6" x2="18" y2="18" />
              </svg>
            </template>
          </NButton>
          <NButton quaternary size="tiny" @click="handleNewChat" circle>
            <template #icon>
              <svg
                width="14"
                height="14"
                viewBox="0 0 24 24"
                fill="none"
                stroke="currentColor"
                stroke-width="2"
              >
                <line x1="12" y1="5" x2="12" y2="19" />
                <line x1="5" y1="12" x2="19" y2="12" />
              </svg>
            </template>
          </NButton>
        </div>
      </div>
      <div v-if="showSessions" class="session-scope-note">
        <span>{{ t("chat.sessionScopeHint") }}</span>
        <RouterLink class="session-scope-link" :to="{ name: 'hermes.history' }">
          {{ t("chat.openHistory") }}
        </RouterLink>
      </div>
      <div v-if="showSessions" class="session-items">
        <div
          v-if="chatStore.isLoadingSessions && chatStore.sessions.length === 0"
          class="session-loading"
        >
          {{ t("common.loading") }}
        </div>
        <div v-else-if="chatStore.sessions.length === 0" class="session-empty">
          {{ t("chat.noSessions") }}
        </div>

        <template v-if="pinnedSessions.length > 0">
          <div class="session-group-header session-group-header--static">
            <span class="session-group-label">{{ t("chat.pinned") }}</span>
            <span class="session-group-count">{{ pinnedSessions.length }}</span>
          </div>
          <SessionListItem
            v-for="s in pinnedSessions"
            :key="`pinned-${s.id}`"
            :session="s"
            :active="s.id === chatStore.activeSessionId"
            :pinned="true"
            :can-delete="
              s.id !== chatStore.activeSessionId ||
              chatStore.sessions.length > 1
            "
            :streaming="chatStore.isSessionLive(s.id)"
            :selectable="isBatchMode"
            :selected="isSessionSelected(s.id)"
            @select="handleSessionClick(s.id)"
            @contextmenu="handleContextMenu($event, s.id)"
            @delete="handleDeleteSession(s.id)"
            @toggle-select="toggleSessionSelection(s.id)"
          />
        </template>

        <template v-for="group in groupedSessions" :key="group.source">
          <div class="session-group-header" @click="toggleGroup(group.source)">
            <svg
              width="10"
              height="10"
              viewBox="0 0 24 24"
              fill="none"
              stroke="currentColor"
              stroke-width="2"
              class="group-chevron"
              :class="{ collapsed: collapsedGroups.has(group.source) }"
            >
              <polyline points="9 18 15 12 9 6" />
            </svg>
            <span class="session-group-label">{{ group.label }}</span>
            <span class="session-group-count">{{ group.sessions.length }}</span>
          </div>
          <template v-if="!collapsedGroups.has(group.source)">
            <SessionListItem
              v-for="s in group.sessions"
              :key="s.id"
              :session="s"
              :active="s.id === chatStore.activeSessionId"
              :pinned="false"
              :can-delete="
                s.id !== chatStore.activeSessionId ||
                chatStore.sessions.length > 1
              "
              :streaming="chatStore.isSessionLive(s.id)"
              :selectable="isBatchMode"
              :selected="isSessionSelected(s.id)"
              @select="handleSessionClick(s.id)"
              @contextmenu="handleContextMenu($event, s.id)"
              @delete="handleDeleteSession(s.id)"
              @toggle-select="toggleSessionSelection(s.id)"
            />
          </template>
        </template>
      </div>
    </aside>

    <NDropdown
      placement="bottom-start"
      trigger="manual"
      :x="contextMenuX"
      :y="contextMenuY"
      :options="contextMenuOptions"
      :show="showContextMenu"
      @select="handleContextMenuSelect"
      @clickoutside="handleClickOutside"
    />

    <NModal
      v-model:show="showRenameModal"
      preset="dialog"
      :title="t('chat.renameSession')"
      :positive-text="t('common.ok')"
      :negative-text="t('common.cancel')"
      @positive-click="handleRenameConfirm"
    >
      <NInput
        ref="renameInputRef"
        v-model:value="renameValue"
        :placeholder="t('chat.enterNewTitle')"
        @keydown.enter="handleRenameConfirm"
      />
    </NModal>

    <NModal
      v-model:show="showWorkspaceModal"
      preset="dialog"
      :title="t('chat.setWorkspaceTitle')"
      :positive-text="t('common.ok')"
      :negative-text="t('common.cancel')"
      style="width: 520px"
      @positive-click="handleWorkspaceConfirm"
    >
      <FolderPicker v-model="workspaceValue" />
    </NModal>

    <div class="chat-main">
      <header class="chat-header">
        <div class="header-left">
          <NButton
            v-if="currentMode === 'chat'"
            quaternary
            size="small"
            @click="showSessions = !showSessions"
            circle
          >
            <template #icon>
              <svg
                width="16"
                height="16"
                viewBox="0 0 24 24"
                fill="none"
                stroke="currentColor"
                stroke-width="1.5"
              >
                <rect x="3" y="3" width="7" height="7" />
                <rect x="14" y="3" width="7" height="7" />
                <rect x="3" y="14" width="7" height="7" />
                <rect x="14" y="14" width="7" height="7" />
              </svg>
            </template>
          </NButton>
          <span class="header-session-title">{{ headerTitle }}</span>
          <span v-if="activeSessionSource" class="source-badge">{{
            getSourceLabel(activeSessionSource)
          }}</span>
          <span
            v-if="chatStore.activeSession?.workspace"
            class="workspace-badge"
            :title="chatStore.activeSession.workspace"
            >📁
            {{
              chatStore.activeSession.workspace.split("/").pop() ||
              chatStore.activeSession.workspace
            }}</span
          >
        </div>
        <div class="header-actions">
          <!-- chat/live mode toggle hidden -->
          <template v-if="currentMode === 'chat'">
            <NTooltip trigger="hover">
              <template #trigger>
                <NButton
                  quaternary
                  size="small"
                  @click="copySessionId()"
                  circle
                >
                  <template #icon>
                    <svg
                      width="14"
                      height="14"
                      viewBox="0 0 24 24"
                      fill="none"
                      stroke="currentColor"
                      stroke-width="1.5"
                    >
                      <rect x="9" y="9" width="13" height="13" rx="2" ry="2" />
                      <path
                        d="M5 15H4a2 2 0 0 1-2-2V4a2 2 0 0 1 2-2h9a2 2 0 0 1 2 2v1"
                      />
                    </svg>
                  </template>
                </NButton>
              </template>
              {{ t("chat.copySessionId") }}
            </NTooltip>
            <NButton size="small" :circle="isMobile" @click="handleNewChat">
              <template #icon>
                <svg
                  width="14"
                  height="14"
                  viewBox="0 0 24 24"
                  fill="none"
                  stroke="currentColor"
                  stroke-width="2"
                >
                  <line x1="12" y1="5" x2="12" y2="19" />
                  <line x1="5" y1="12" x2="19" y2="12" />
                </svg>
              </template>
              <template v-if="!isMobile">{{ t("chat.newChat") }}</template>
            </NButton>
          </template>
        </div>
      </header>

      <template v-if="currentMode === 'chat'">
        <MessageList />
        <ChatInput />
      </template>
      <ConversationMonitorPane
        v-else
        :human-only="sessionBrowserPrefsStore.humanOnly"
      />
    </div>

    <!-- Floating drawer button -->
    <div class="drawer-button-wrapper">
      <div class="drawer-button" @click="showDrawer = true">
        <svg
          width="20"
          height="20"
          viewBox="0 0 24 24"
          fill="none"
          stroke="currentColor"
          stroke-width="1.5"
        >
          <rect x="3" y="3" width="18" height="18" rx="2" ry="2" />
          <line x1="9" y1="3" x2="9" y2="21" />
          <line x1="15" y1="3" x2="15" y2="21" />
        </svg>
      </div>
    </div>

    <DrawerPanel v-model:show="showDrawer" :active-tab="drawerActiveTab" />
  </div>
</template>

<style scoped lang="scss">
@use "@/styles/variables" as *;

.chat-panel {
  display: flex;
  height: 100%;
  position: relative;
}

.session-list {
  width: 220px;
  border-right: 1px solid $border-color;
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  transition:
    width $transition-normal,
    opacity $transition-normal;
  overflow: hidden;

  &.collapsed {
    width: 0;
    border-right: none;
    opacity: 0;
    pointer-events: none;
  }

  @media (max-width: $breakpoint-mobile) {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    z-index: 10;
    background: $bg-card;
    box-shadow: 2px 0 8px rgba(0, 0, 0, 0.1);
    width: 280px;

    &.collapsed {
      transform: translateX(-100%);
      opacity: 0;
    }
  }
}

@media (max-width: $breakpoint-mobile) {
  .session-close-btn {
    display: flex;
  }

  .session-backdrop {
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.4);
    z-index: 9;
    opacity: 0;
    pointer-events: none;
    transition: opacity $transition-fast;

    &.active {
      opacity: 1;
      pointer-events: auto;
    }
  }
}

.session-list-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px;
  flex-shrink: 0;
  min-height: 0;
}

.session-list-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  height: 22px;

  .n-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 22px;
    min-height: 22px;
  }
}

.session-close-btn {
  display: none;
  border: none;
  background: none;
  cursor: pointer;
  color: $text-secondary;
  padding: 4px;
  border-radius: $radius-sm;
  height: 22px;
  min-height: 22px;
  align-items: center;
  justify-content: center;

  &:hover {
    background: rgba($accent-primary, 0.06);
  }
}

.session-list-title {
  font-size: 12px;
  font-weight: 600;
  color: $text-muted;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  line-height: 22px;
}

.session-scope-note {
  margin: 0 12px 10px;
  padding: 8px 10px;
  border: 1px solid rgba($accent-primary, 0.16);
  border-radius: $radius-sm;
  background: rgba($accent-primary, 0.06);
  color: $text-secondary;
  font-size: 11px;
  line-height: 1.45;
}

.session-scope-link {
  display: inline-block;
  margin-left: 4px;
  color: $accent-primary;
  font-weight: 500;
  text-decoration: none;

  &:hover {
    text-decoration: underline;
  }
}

.session-group-header {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 6px 10px 4px;
  cursor: pointer;
  user-select: none;
}

.session-group-header--static {
  cursor: default;
}

.group-chevron {
  flex-shrink: 0;
  transition: transform 0.15s ease;
  transform: rotate(90deg);

  &.collapsed {
    transform: rotate(0deg);
  }
}

.session-group-label {
  font-size: 10px;
  font-weight: 600;
  color: $text-muted;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.session-group-count {
  font-size: 10px;
  color: $text-muted;
  font-weight: 400;
}

.session-items {
  flex: 1;
  overflow-y: auto;
  padding: 0 6px 12px;
}

.session-loading,
.session-empty {
  padding: 16px 10px;
  font-size: 12px;
  color: $text-muted;
  text-align: center;
}

:deep(.session-item) {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 8px 10px;
  border: none;
  background: none;
  border-radius: $radius-sm;
  cursor: pointer;
  text-align: left;
  color: $text-secondary;
  transition: all $transition-fast;
  margin-bottom: 2px;

  &:hover {
    background: rgba($accent-primary, 0.06);
    color: $text-primary;

    .session-item-delete {
      opacity: 1;
    }
  }

  &.active {
    background: rgba(var(--accent-primary-rgb), 0.12);
    color: $text-primary;
    font-weight: 500;
  }

  &.active .session-item-title {
    color: $accent-primary;
  }
}

:deep(.session-item-content) {
  flex: 1;
  overflow: hidden;
}

:deep(.session-item-title-row) {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
}

:deep(.session-item-title) {
  display: block;
  flex: 1 1 auto;
  min-width: 0;
  font-size: 13px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

:deep(.session-item-streaming) {
  display: inline-block;
  flex-shrink: 0;
  margin-right: 4px;
  vertical-align: middle;
  animation: spin 1.2s linear infinite;
  color: $accent-primary;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

:deep(.session-item-pin) {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: $accent-primary;
}

:deep(.session-item-time) {
  font-size: 11px;
  color: $text-muted;
}

:deep(.session-item-meta) {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 2px;
}

:deep(.session-item-model) {
  font-size: 10px;
  color: $accent-primary;
  background: rgba($accent-primary, 0.08);
  padding: 0 5px;
  border-radius: 3px;
  line-height: 16px;
  flex-shrink: 0;
  max-width: 100px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

:deep(.session-item-delete) {
  flex-shrink: 0;
  opacity: 0.5;
  padding: 2px;
  border: none;
  background: none;
  color: $text-muted;
  cursor: pointer;
  border-radius: 3px;
  transition: all $transition-fast;

  &:hover {
    color: $error;
    background: rgba($error, 0.1);
  }
}

.chat-main {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  min-width: 0;
}

.chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 21px 20px;
  border-bottom: 1px solid $border-color;
  flex-shrink: 0;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 8px;
  overflow: hidden;
  flex: 1;
  min-width: 0;
}

.header-session-title {
  font-size: 16px;
  font-weight: 600;
  color: $text-primary;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.source-badge {
  font-size: 10px;
  color: $text-muted;
  background: rgba($text-muted, 0.12);
  padding: 1px 7px;
  border-radius: 8px;
  flex-shrink: 0;
  white-space: nowrap;
  line-height: 16px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-shrink: 0;
}

.chat-mode-toggle {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-right: 4px;
}

@media (max-width: $breakpoint-mobile) {
  .chat-header {
    padding: 16px 12px 16px 52px;
  }
}

.workspace-badge {
  font-size: 11px;
  color: $text-muted;
  background: rgba(255, 255, 255, 0.05);
  padding: 2px 8px;
  border-radius: 4px;
  max-width: 160px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  cursor: default;
}

// ─── Drawer button ─────────────────────────────────────────────

.drawer-button-wrapper {
  position: absolute;
  right: 16px;
  top: 50%;
  transform: translateY(-50%);
  z-index: 100;
  background: $bg-card;
  border-radius: 50%;
  box-shadow:
    0 0 10px rgba(255, 107, 107, 0.4),
    0 0 20px rgba(255, 107, 107, 0.2);
  animation: rainbow-glow 8s linear infinite;
  transition: all $transition-fast;

  &:hover {
    animation-play-state: paused;
    box-shadow:
      0 0 15px rgba(255, 107, 107, 0.6),
      0 0 30px rgba(255, 107, 107, 0.3);
  }
}

.drawer-button {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(var(--accent-primary-rgb), 0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all $transition-fast;

  svg {
    width: 18px;
    height: 18px;
    color: var(--accent-primary);
  }

  &:hover {
    transform: scale(1.1);
  }
}

@keyframes rainbow-glow {
  0% {
    box-shadow:
      0 0 0 2px #ff6b6b,
      0 0 10px rgba(255, 107, 107, 0.4),
      0 0 20px rgba(255, 107, 107, 0.2);
    border-color: #ff6b6b;
    color: #ff6b6b;
  }
  16.66% {
    box-shadow:
      0 0 0 2px #feca57,
      0 0 10px rgba(254, 202, 87, 0.4),
      0 0 20px rgba(254, 202, 87, 0.2);
    border-color: #feca57;
    color: #feca57;
  }
  33.33% {
    box-shadow:
      0 0 0 2px #48dbfb,
      0 0 10px rgba(72, 219, 251, 0.4),
      0 0 20px rgba(72, 219, 251, 0.2);
    border-color: #48dbfb;
    color: #48dbfb;
  }
  50% {
    box-shadow:
      0 0 0 2px #ff9ff3,
      0 0 10px rgba(255, 159, 243, 0.4),
      0 0 20px rgba(255, 159, 243, 0.2);
    border-color: #ff9ff3;
    color: #ff9ff3;
  }
  66.66% {
    box-shadow:
      0 0 0 2px #54a0ff,
      0 0 10px rgba(84, 160, 255, 0.4),
      0 0 20px rgba(84, 160, 255, 0.2);
    border-color: #54a0ff;
    color: #54a0ff;
  }
  83.33% {
    box-shadow:
      0 0 0 2px #5f27cd,
      0 0 10px rgba(95, 39, 205, 0.4),
      0 0 20px rgba(95, 39, 205, 0.2);
    border-color: #5f27cd;
    color: #5f27cd;
  }
  100% {
    box-shadow:
      0 0 0 2px #ff6b6b,
      0 0 10px rgba(255, 107, 107, 0.4),
      0 0 20px rgba(255, 107, 107, 0.2);
    border-color: #ff6b6b;
    color: #ff6b6b;
  }
}

@media (max-width: $breakpoint-mobile) {
  .drawer-button-wrapper {
    right: 12px;
  }

  .drawer-button {
    width: 36px;
    height: 36px;

    svg {
      width: 16px;
      height: 16px;
    }
  }
}
</style>