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<script setup lang="ts">
import { useCharacterSessions } from "~/composables/useCharacterSessions";
import { useCharacterChat } from "~/composables/useCharacterChat";
import { useAuthSession } from "~/composables/useAuthSession";
definePageMeta({ layout: "character" });
const route = useRoute();
const cardSlug = computed(() => String(route.params.slug));
const auth = useAuthSession();
const sessions = useCharacterSessions(cardSlug.value);
const isMobile = useMediaQuery("(max-width: 767.98px)");
interface CardInfo {
slug?: string;
name: string;
avatar?: string | null;
description?: string | null;
personality?: string | null;
scenario?: string | null;
firstMessage?: string | null;
exampleDialogue?: string | null;
tags?: string[];
}
interface ModelOption {
id: number;
name: string;
modelId: string;
providerName: string;
}
const cardInfo = ref<CardInfo>({ name: "", tags: [] });
const models = ref<ModelOption[]>([]);
const selectedModelId = ref<number | null>(null);
const inputText = ref("");
const detailShow = ref(false);
const chat = useCharacterChat({
cardSlug: () => cardSlug.value,
sessionId: () => sessions.currentSessionId.value,
modelId: () => selectedModelId.value,
});
const showWelcome = computed(() => chat.messages.value.length === 0 && !chat.isLoading.value);
async function loadCard() {
try {
const res = await $fetch<{ code: number; data: CardInfo }>(
`/api/characters/${cardSlug.value}/info`,
);
cardInfo.value = res.data ?? { name: "", tags: [] };
} catch {
cardInfo.value = { name: "", tags: [] };
}
}
async function loadModels() {
try {
const isGuest = !auth.loggedIn.value;
const endpoint = isGuest
? `/api/characters/${cardSlug.value}/models`
: "/api/llm/models";
const res = await $fetch<{ code: number; data: { list: any[]; defaultModelId?: number | null } }>(endpoint);
const list = res.data?.list ?? [];
models.value = list.map((m) => ({
id: m.id,
name: m.name,
modelId: m.modelId,
providerName: m.providerName ?? "—",
}));
const sessionModel = sessions.currentSession.value?.modelId ?? null;
selectedModelId.value =
(sessionModel && models.value.some((m) => m.id === sessionModel) ? sessionModel : null) ??
res.data?.defaultModelId ??
models.value[0]?.id ??
null;
} catch {
models.value = [];
}
}
watch(
() => sessions.currentSessionId.value,
async (sid) => {
chat.stopGeneration();
if (sid) {
await chat.loadMessages(sid);
const sessionModel = sessions.currentSession.value?.modelId ?? null;
if (sessionModel && models.value.some((m) => m.id === sessionModel)) {
selectedModelId.value = sessionModel;
} else if (models.value.length > 0 && selectedModelId.value === null) {
selectedModelId.value = models.value[0]!.id;
}
} else {
chat.clear();
}
},
);
async function handleSend(content: string) {
if (!sessions.currentSessionId.value) {
await sessions.newSession();
}
if (sessions.currentSessionId.value) {
const sid = sessions.currentSessionId.value;
sessions.touchSessionOrder(sid);
await chat.send(content);
}
}
async function handleNewSession() {
chat.stopGeneration();
const sid = sessions.currentSessionId.value;
if (sid) {
if (chat.messages.value.length === 0 && !chat.isLoading.value) {
return;
}
}
await sessions.newSession();
}
async function handleModelChange(id: number) {
selectedModelId.value = id;
if (sessions.currentSessionId.value) {
await sessions.updateModelConfig(sessions.currentSessionId.value, id);
}
}
function handleSwitchCard(slug: string) {
navigateTo(`/characters/${slug}`);
}
function handleDetailStart(slug: string) {
detailShow.value = false;
navigateTo(`/characters/${slug}`);
}
function onModelSelect(e: Event) {
const id = Number((e.target as HTMLSelectElement).value);
if (id) handleModelChange(id);
}
function submit() {
const text = inputText.value.trim();
if (!text) return;
inputText.value = "";
handleSend(text);
}
onMounted(async () => {
await Promise.all([loadCard(), loadModels()]);
await sessions.init();
});
</script>
<template>
<div class="character-chat">
<!-- 侧边栏 -->
<aside class="chat-sidebar">
<header class="sidebar-header">
<NuxtLink to="/characters" class="back-link">
<Icon name="lucide:chevron-left" />
<span>角色卡</span>
</NuxtLink>
<button class="new-chat-btn" @click="handleNewSession">
<Icon name="lucide:plus" />
<span>新对话</span>
</button>
</header>
<div class="session-list">
<div
v-for="s in sessions.sessions.value"
:key="s.id"
class="session-item"
:class="{ active: s.id === sessions.currentSessionId.value }"
@click="sessions.selectSession(s.id)"
>
<Icon name="lucide:message-square" class="session-icon" />
<span class="session-title">{{ s.title }}</span>
<button
class="session-delete"
@click.stop="sessions.deleteSession(s.id)"
title="删除"
>
<Icon name="lucide:trash-2" />
</button>
</div>
<div v-if="sessions.sessions.value.length === 0" class="empty-sessions">
暂无对话
</div>
</div>
<footer class="sidebar-footer">
<template v-if="auth.loggedIn.value && auth.user.value">
<div class="user-row">
<div class="user-avatar">{{ (auth.user.value.username || "?").charAt(0).toUpperCase() }}</div>
<span class="user-name">{{ auth.user.value.nickname || auth.user.value.username }}</span>
</div>
</template>
<NuxtLink v-else to="/auth/login" class="login-link">登录以保存对话</NuxtLink>
</footer>
</aside>
<!-- 主区域 -->
<main class="chat-main">
<header class="chat-topbar">
<div class="agent-identity">
<div class="agent-avatar">
<img v-if="cardInfo.avatar" :src="cardInfo.avatar" :alt="cardInfo.name" />
<span v-else>{{ cardInfo.name.charAt(0) }}</span>
</div>
<div class="agent-meta">
<div class="agent-name">{{ cardInfo.name || "角色" }}</div>
<div v-if="cardInfo.description" class="agent-desc">{{ cardInfo.description }}</div>
</div>
</div>
<div class="topbar-actions">
<button class="detail-btn" @click="detailShow = true">
<Icon name="lucide:info" />
<span>详情</span>
</button>
<div class="model-selector">
<Icon name="lucide:cpu" class="model-icon" />
<select
:value="selectedModelId ?? undefined"
class="model-select"
@change="onModelSelect"
>
<option :value="undefined" disabled>选择模型</option>
<option v-for="m in models" :key="m.id" :value="m.id">
{{ m.name }} ({{ m.modelId }})
</option>
</select>
</div>
</div>
</header>
<div class="chat-body">
<!-- 欢迎态 -->
<div v-if="showWelcome" class="welcome">
<div class="welcome-avatar">
<img v-if="cardInfo.avatar" :src="cardInfo.avatar" :alt="cardInfo.name" />
<span v-else>{{ cardInfo.name.charAt(0) }}</span>
</div>
<h1 class="welcome-name">{{ cardInfo.name }}</h1>
<p v-if="cardInfo.description" class="welcome-desc">{{ cardInfo.description }}</p>
<div v-if="cardInfo.personality" class="welcome-section">
<div class="section-label">性格</div>
<p class="section-text">{{ cardInfo.personality }}</p>
</div>
<div v-if="cardInfo.scenario" class="welcome-section">
<div class="section-label">世界观 / 场景</div>
<p class="section-text">{{ cardInfo.scenario }}</p>
</div>
<div v-if="cardInfo.tags && cardInfo.tags.length" class="welcome-tags">
<span v-for="t in cardInfo.tags" :key="t" class="tag">{{ t }}</span>
</div>
<p v-if="cardInfo.firstMessage" class="welcome-greeting">
“{{ cardInfo.firstMessage }}”
</p>
</div>
<!-- 消息列表 -->
<div v-else class="message-list">
<div
v-for="m in chat.messages.value"
:key="m.id"
class="message"
:class="m.role === 'user' ? 'is-user' : 'is-assistant'"
>
<div v-if="m.role === 'assistant'" class="msg-avatar">
<img v-if="cardInfo.avatar" :src="cardInfo.avatar" :alt="cardInfo.name" />
<span v-else>{{ cardInfo.name.charAt(0) }}</span>
</div>
<div class="bubble">{{ m.content }}</div>
</div>
<div v-if="chat.isLoading.value" class="typing">
<span class="dot"></span><span class="dot"></span><span class="dot"></span>
</div>
<p v-if="chat.errorMessage.value" class="error-msg">{{ chat.errorMessage.value }}</p>
</div>
</div>
<footer class="chat-input">
<textarea
v-model="inputText"
class="input-textarea"
rows="1"
placeholder="和 {{ cardInfo.name || '角色' }} 说点什么…"
@keydown.enter.exact.prevent="submit"
/>
<button
v-if="chat.isLoading.value"
class="btn-stop"
@click="chat.stopAndSave()"
>
<Icon name="lucide:square" />
</button>
<button
v-else
class="btn-send"
:disabled="!inputText.trim()"
@click="submit"
>
<Icon name="lucide:send" />
</button>
</footer>
</main>
<CharacterDetailModal v-model:show="detailShow" :card="cardInfo" @start="handleDetailStart" />
</div>
</template>
<style scoped>
.character-chat {
display: flex;
height: 100vh;
width: 100vw;
overflow: hidden;
}
/* ===== 侧边栏 ===== */
.chat-sidebar {
width: 260px;
flex-shrink: 0;
display: flex;
flex-direction: column;
background: var(--color-surface-dark);
color: var(--color-on-dark);
}
.sidebar-header {
padding: 16px;
border-bottom: 1px solid rgba(255, 255, 255, 0.08);
display: flex;
flex-direction: column;
gap: 12px;
}
.back-link {
display: flex;
align-items: center;
gap: 4px;
color: var(--color-on-dark-soft);
text-decoration: none;
font-size: 14px;
}
.back-link:hover {
color: var(--color-on-dark);
}
.new-chat-btn {
display: flex;
align-items: center;
justify-content: center;
gap: 8px;
padding: 10px;
background: var(--color-primary);
color: var(--color-on-primary);
border: none;
border-radius: 8px;
font-size: 14px;
font-weight: 500;
cursor: pointer;
}
.new-chat-btn:hover {
background: var(--color-primary-active);
}
.session-list {
flex: 1;
overflow-y: auto;
padding: 8px;
}
.session-item {
display: flex;
align-items: center;
gap: 8px;
padding: 10px 12px;
border-radius: 8px;
cursor: pointer;
color: var(--color-on-dark-soft);
font-size: 14px;
}
.session-item:hover {
background: rgba(255, 255, 255, 0.06);
}
.session-item.active {
background: var(--color-primary);
color: var(--color-on-primary);
}
.session-icon {
flex-shrink: 0;
width: 16px;
height: 16px;
opacity: 0.7;
}
.session-title {
flex: 1;
overflow: hidden;
text-overflow: ellipsis;
white-space: nowrap;
}
.session-delete {
background: transparent;
border: none;
color: inherit;
cursor: pointer;
opacity: 0;
transition: opacity 0.15s;
padding: 2px;
}
.session-item:hover .session-delete {
opacity: 0.7;
}
.empty-sessions {
padding: 24px;
text-align: center;
color: var(--color-on-dark-soft);
font-size: 13px;
}
.sidebar-footer {
padding: 16px;
border-top: 1px solid rgba(255, 255, 255, 0.08);
}
.user-row {
display: flex;
align-items: center;
gap: 10px;
}
.user-avatar {
width: 30px;
height: 30px;
border-radius: 8px;
background: var(--color-primary);
color: var(--color-on-primary);
display: flex;
align-items: center;
justify-content: center;
font-size: 14px;
font-weight: 600;
}
.user-name {
font-size: 13px;
color: var(--color-on-dark);
}
.login-link {
font-size: 14px;
color: var(--color-on-dark-soft);
text-decoration: none;
}
.login-link:hover {
color: var(--color-on-dark);
}
/* ===== 主区域 ===== */
.chat-main {
flex: 1;
display: flex;
flex-direction: column;
min-width: 0;
}
.chat-topbar {
display: flex;
align-items: center;
justify-content: space-between;
gap: 16px;
padding: 12px 20px;
border-bottom: 1px solid var(--color-hairline);
background: var(--color-canvas);
}
.agent-identity {
display: flex;
align-items: center;
gap: 12px;
min-width: 0;
}
.agent-avatar {
width: 40px;
height: 40px;
border-radius: 10px;
overflow: hidden;
background: var(--color-surface-dark);
color: var(--color-on-dark);
display: flex;
align-items: center;
justify-content: center;
flex-shrink: 0;
}
.agent-avatar img {
width: 100%;
height: 100%;
object-fit: cover;
}
.agent-meta {
min-width: 0;
}
.agent-name {
font-size: 15px;
font-weight: 500;
color: var(--color-ink);
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
}
.agent-desc {
font-size: 12px;
color: var(--color-muted);
white-space: nowrap;
overflow: hidden;
text-overflow: ellipsis;
max-width: 360px;
}
.topbar-actions {
display: flex;
align-items: center;
gap: 12px;
flex-shrink: 0;
}
.detail-btn {
display: flex;
align-items: center;
gap: 6px;
padding: 6px 12px;
background: var(--color-surface-card);
border: 1px solid var(--color-hairline);
border-radius: 8px;
font-size: 13px;
color: var(--color-ink);
cursor: pointer;
transition: all 0.15s;
}
.detail-btn:hover {
border-color: var(--color-primary);
color: var(--color-primary);
}
.detail-btn :deep(svg) {
width: 14px;
height: 14px;
}
.model-selector {
display: flex;
align-items: center;
gap: 6px;
flex-shrink: 0;
}
.model-icon {
width: 16px;
height: 16px;
color: var(--color-muted);
}
.model-select {
padding: 6px 10px;
border: 1px solid var(--color-hairline);
border-radius: 8px;
font-size: 13px;
color: var(--color-ink);
background: var(--color-surface-card);
outline: none;
max-width: 220px;
}
.chat-body {
flex: 1;
overflow-y: auto;
}
/* ===== 欢迎态 ===== */
.welcome {
max-width: 640px;
margin: 0 auto;
padding: 48px 24px;
text-align: center;
}
.welcome-avatar {
width: 88px;
height: 88px;
border-radius: 22px;
overflow: hidden;
background: var(--color-surface-dark);
color: var(--color-on-dark);
display: flex;
align-items: center;
justify-content: center;
margin: 0 auto 20px;
font-family: var(--font-display);
font-size: 36px;
}
.welcome-avatar img {
width: 100%;
height: 100%;
object-fit: cover;
}
.welcome-name {
font-family: var(--font-display);
font-size: 30px;
font-weight: 400;
color: var(--color-ink);
margin: 0 0 8px;
}
.welcome-desc {
font-size: 15px;
color: var(--color-muted);
margin: 0 0 24px;
}
.welcome-section {
text-align: left;
margin-bottom: 16px;
}
.section-label {
font-size: 12px;
font-weight: 600;
color: var(--color-muted);
text-transform: uppercase;
letter-spacing: 0.05em;
margin-bottom: 4px;
}
.section-text {
font-size: 14px;
color: var(--color-body);
line-height: 1.6;
margin: 0;
}
.welcome-tags {
display: flex;
flex-wrap: wrap;
justify-content: center;
gap: 6px;
margin-bottom: 20px;
}
.tag {
padding: 2px 10px;
border-radius: 10px;
font-size: 12px;
color: var(--color-primary-active);
background: rgba(204, 120, 92, 0.1);
}
.welcome-greeting {
font-style: italic;
font-size: 14px;
color: var(--color-muted);
}
/* ===== 消息列表 ===== */
.message-list {
max-width: 760px;
margin: 0 auto;
padding: 24px;
display: flex;
flex-direction: column;
gap: 16px;
}
.message {
display: flex;
gap: 10px;
}
.message.is-user {
flex-direction: row-reverse;
}
.msg-avatar {
width: 32px;
height: 32px;
border-radius: 8px;
overflow: hidden;
background: var(--color-surface-dark);
color: var(--color-on-dark);
display: flex;
align-items: center;
justify-content: center;
flex-shrink: 0;
font-size: 14px;
}
.msg-avatar img {
width: 100%;
height: 100%;
object-fit: cover;
}
.bubble {
max-width: 70%;
padding: 10px 14px;
border-radius: 14px;
font-size: 14px;
line-height: 1.6;
white-space: pre-wrap;
word-break: break-word;
}
.message.is-user .bubble {
background: var(--color-primary);
color: var(--color-on-primary);
border-bottom-right-radius: 4px;
}
.message.is-assistant .bubble {
background: var(--color-surface-card);
color: var(--color-ink);
border: 1px solid var(--color-hairline);
border-bottom-left-radius: 4px;
}
.typing {
display: flex;
gap: 4px;
padding: 8px 0;
}
.dot {
width: 6px;
height: 6px;
border-radius: 50%;
background: var(--color-muted-soft);
animation: blink 1.2s infinite;
}
.dot:nth-child(2) {
animation-delay: 0.2s;
}
.dot:nth-child(3) {
animation-delay: 0.4s;
}
@keyframes blink {
0%, 100% { opacity: 0.3; }
50% { opacity: 1; }
}
.error-msg {
font-size: 13px;
color: var(--color-error);
}
/* ===== 输入区 ===== */
.chat-input {
display: flex;
align-items: flex-end;
gap: 10px;
padding: 16px 20px;
border-top: 1px solid var(--color-hairline);
background: var(--color-canvas);
}
.input-textarea {
flex: 1;
resize: none;
padding: 10px 14px;
border: 1px solid var(--color-hairline);
border-radius: 10px;
font-size: 14px;
line-height: 1.5;
color: var(--color-ink);
background: var(--color-surface-card);
outline: none;
font-family: inherit;
}
.input-textarea:focus {
border-color: var(--color-primary);
}
.btn-send,
.btn-stop {
width: 40px;
height: 40px;
border: none;
border-radius: 10px;
display: flex;
align-items: center;
justify-content: center;
cursor: pointer;
flex-shrink: 0;
}
.btn-send {
background: var(--color-primary);
color: var(--color-on-primary);
}
.btn-send:hover:not(:disabled) {
background: var(--color-primary-active);
}
.btn-send:disabled {
opacity: 0.5;
cursor: not-allowed;
}
.btn-stop {
background: var(--color-surface-dark);
color: var(--color-on-dark);
}
@media (max-width: 768px) {
.chat-sidebar {
position: absolute;
z-index: 20;
height: 100%;
transform: translateX(-100%);
transition: transform 0.2s ease;
}
}
</style>