{% extends "base.html" %}

{% block title %}LLM目录配置 - 机器人管理后台{% endblock %}

{% block content %}
<div class="page-shell system-page">
    <div class="page-hero">
        <div class="page-hero-copy">
            <div class="page-eyebrow">LLM Catalog</div>
            <h1>LLM目录配置</h1>
            <p>按 Provider 模板、Dify 应用、Scene 绑定三层维护，减少重复配置和切换成本。</p>
        </div>
        <div class="page-hero-actions">
            <el-button size="mini" plain @click="loadLlmConfig">刷新</el-button>
            <el-button size="mini" type="success" @click="saveLlmConfig">保存配置</el-button>
        </div>
    </div>

    <el-card class="workspace-card" shadow="hover">
        <div slot="header" class="workspace-header">
            <div>
                <h3>目录元信息</h3>
                <p>默认场景用于兜底路由，建议始终设置一个稳定可用的场景。</p>
            </div>
            <div class="config-meta" v-if="configPath">
                <span>配置源：{% raw %}{{ configPath }}{% endraw %}</span>
            </div>
        </div>
        <el-form label-width="110px" class="llm-form">
            <el-form-item label="默认场景">
                <el-select v-model="catalog.default_scene" placeholder="请选择默认场景" filterable clearable style="width: 360px;">
                    <el-option v-for="item in sceneNameOptions" :key="item" :label="item" :value="item"></el-option>
                </el-select>
            </el-form-item>
        </el-form>
    </el-card>

    <el-card class="workspace-card" shadow="hover">
        <div slot="header" class="workspace-header">
            <div>
                <h3>1. Provider 模板</h3>
                <p>公共连接参数只配置一次：base_url、endpoint、mode、超时等。</p>
            </div>
            <el-button size="mini" @click="addProvider">新增模板</el-button>
        </div>
        <div class="section-list" v-if="catalog.providers.length">
            <el-card v-for="(item, index) in catalog.providers" :key="item.uid" class="entry-card" shadow="never">
                <div slot="header" class="entry-header">
                    <strong>{% raw %}{{ item.name || `Provider ${index + 1}` }}{% endraw %}</strong>
                    <el-button type="text" class="danger-text" @click="removeProvider(index)">删除</el-button>
                </div>
                <div class="entry-grid">
                    <el-input v-model="item.name" placeholder="模板名，例如：dify_workflow_default"></el-input>
                    <el-select v-model="item.provider_type" placeholder="Provider类型">
                        <el-option label="dify" value="dify"></el-option>
                        <el-option label="openai_compatible" value="openai_compatible"></el-option>
                    </el-select>
                    <el-input v-model="item.config.api_base_url" placeholder="API Base URL"></el-input>
                    <el-input v-model="item.config.endpoint" placeholder="Endpoint，例如：workflows/run"></el-input>
                    <el-input v-model="item.config.mode" placeholder="mode，例如：workflow"></el-input>
                    <el-input v-model="item.config.response_mode" placeholder="response_mode，例如：blocking"></el-input>
                    <el-input-number v-model="item.config.request_timeout" :min="1" :step="1" placeholder="request_timeout"></el-input-number>
                    <el-input-number v-model="item.config.max_retries" :min="1" :step="1" placeholder="max_retries"></el-input-number>
                </div>
            </el-card>
        </div>
        <el-empty v-else description="暂无 Provider 模板，先新增一个"></el-empty>
    </el-card>

    <el-card class="workspace-card" shadow="hover">
        <div slot="header" class="workspace-header">
            <div>
                <h3>2. Dify 应用</h3>
                <p>每个应用只维护 app_key 和少量差异项，不再重复写 URL/endpoint 公共参数。</p>
            </div>
            <el-button size="mini" @click="addDifyApp">新增应用</el-button>
        </div>
        <div class="section-list" v-if="catalog.dify_apps.length">
            <el-card v-for="(item, index) in catalog.dify_apps" :key="item.uid" class="entry-card" shadow="never">
                <div slot="header" class="entry-header">
                    <strong>{% raw %}{{ item.name || `DifyApp ${index + 1}` }}{% endraw %}</strong>
                    <el-button type="text" class="danger-text" @click="removeDifyApp(index)">删除</el-button>
                </div>
                <div class="entry-grid">
                    <el-input v-model="item.name" placeholder="应用名，例如：chat_main"></el-input>
                    <el-select v-model="item.provider_template" placeholder="绑定 Provider 模板" filterable>
                        <el-option v-for="name in providerNameOptions" :key="name" :label="name" :value="name"></el-option>
                    </el-select>
                    <el-input v-model="item.app_key" placeholder="Dify app key，例如：app-xxxx"></el-input>
                    <el-input v-model="item.workflow_output_key" placeholder="workflow_output_key，例如：text"></el-input>
                    <el-input v-model="item.config.mode" placeholder="覆盖 mode（可选）"></el-input>
                    <el-input v-model="item.config.endpoint" placeholder="覆盖 endpoint（可选）"></el-input>
                    <el-input v-model="item.config.response_mode" placeholder="覆盖 response_mode（可选）"></el-input>
                    <el-input-number v-model="item.config.request_timeout" :min="1" :step="1" placeholder="覆盖 request_timeout（可选）"></el-input-number>
                </div>
            </el-card>
        </div>
        <el-empty v-else description="暂无 Dify 应用"></el-empty>
    </el-card>

    <el-card class="workspace-card" shadow="hover">
        <div slot="header" class="workspace-header">
            <div>
                <h3>3. 通用 Backend（可选）</h3>
                <p>用于 openai_compatible 或其他非 Dify 直连能力。</p>
            </div>
            <el-button size="mini" @click="addBackend">新增Backend</el-button>
        </div>
        <div class="section-list" v-if="catalog.backends.length">
            <el-card v-for="(item, index) in catalog.backends" :key="item.uid" class="entry-card" shadow="never">
                <div slot="header" class="entry-header">
                    <strong>{% raw %}{{ item.name || `Backend ${index + 1}` }}{% endraw %}</strong>
                    <el-button type="text" class="danger-text" @click="removeBackend(index)">删除</el-button>
                </div>
                <div class="entry-grid">
                    <el-input v-model="item.name" placeholder="backend名，例如：openai_main"></el-input>
                    <el-input v-model="item.config.provider" placeholder="provider，例如：openai_compatible"></el-input>
                    <el-input v-model="item.config.api_base_url" placeholder="api_base_url"></el-input>
                    <el-input v-model="item.config.endpoint" placeholder="endpoint"></el-input>
                    <el-input v-model="item.config.api_key" placeholder="api_key"></el-input>
                    <el-input v-model="item.config.model" placeholder="model"></el-input>
                    <el-input-number v-model="item.config.temperature" :min="0" :max="2" :step="0.05"></el-input-number>
                    <el-input-number v-model="item.config.max_tokens" :min="1" :step="1"></el-input-number>
                </div>
            </el-card>
        </div>
        <el-empty v-else description="暂无通用 Backend"></el-empty>
    </el-card>

    <el-card class="workspace-card" shadow="hover">
        <div slot="header" class="workspace-header">
            <div>
                <h3>4. Scene 绑定</h3>
                <p>业务场景绑定 dify_app 或 backend，插件只配置 scene。</p>
            </div>
            <el-button size="mini" @click="addScene">新增场景</el-button>
        </div>
        <div class="section-list" v-if="catalog.scenes.length">
            <div class="scene-row" v-for="(item, index) in catalog.scenes" :key="item.uid">
                <el-input v-model="item.name" placeholder="scene 名，例如：chat.main"></el-input>
                <el-select v-model="item.target_type" placeholder="目标类型">
                    <el-option label="dify_app" value="dify_app"></el-option>
                    <el-option label="backend" value="backend"></el-option>
                </el-select>
                <el-select v-model="item.target_ref" placeholder="目标引用" filterable>
                    <el-option v-for="target in getSceneTargetOptions(item.target_type)" :key="target" :label="target" :value="target"></el-option>
                </el-select>
                <el-button type="text" class="danger-text" @click="removeScene(index)">删除</el-button>
            </div>
        </div>
        <el-empty v-else description="暂无 Scene 绑定"></el-empty>
    </el-card>

    <el-card class="workspace-card" shadow="hover">
        <div slot="header" class="workspace-header">
            <div>
                <h3>插件依赖拓扑</h3>
                <p>显示 插件 -> scene -> target_type/target_ref -> provider，便于评估切换影响。</p>
            </div>
        </div>
        <el-table :data="topologyRows" size="mini" style="width: 100%">
            <el-table-column prop="plugin" label="插件" min-width="120"></el-table-column>
            <el-table-column prop="section" label="配置段" min-width="120"></el-table-column>
            <el-table-column prop="scene" label="Scene" min-width="140">
                <template slot-scope="scope">
                    <el-tag size="mini" :type="scope.row.valid_scene ? 'success' : 'danger'">
                        {% raw %}{{ scope.row.scene || '-' }}{% endraw %}
                    </el-tag>
                </template>
            </el-table-column>
            <el-table-column prop="target_type" label="TargetType" min-width="110"></el-table-column>
            <el-table-column prop="target_ref" label="TargetRef" min-width="160">
                <template slot-scope="scope">
                    <el-tag size="mini" :type="scope.row.valid_target ? 'success' : 'danger'">
                        {% raw %}{{ scope.row.target_ref || '-' }}{% endraw %}
                    </el-tag>
                </template>
            </el-table-column>
            <el-table-column prop="provider" label="Provider" min-width="120"></el-table-column>
        </el-table>
    </el-card>
</div>
{% endblock %}

{% block scripts %}
<script>
    new Vue({
        el: '#app',
        mixins: [baseApp],
        data() {
            return {
                currentView: '17',
                configPath: '',
                topologyRows: [],
                catalog: {
                    default_scene: '',
                    providers: [],
                    dify_apps: [],
                    backends: [],
                    scenes: []
                }
            }
        },
        computed: {
            sceneNameOptions() {
                return (this.catalog.scenes || []).map(item => item.name).filter(Boolean);
            },
            providerNameOptions() {
                return (this.catalog.providers || []).map(item => item.name).filter(Boolean);
            },
            backendNameOptions() {
                return (this.catalog.backends || []).map(item => item.name).filter(Boolean);
            },
            difyAppNameOptions() {
                return (this.catalog.dify_apps || []).map(item => item.name).filter(Boolean);
            }
        },
        mounted() {
            this.currentView = '17';
            this.loadLlmConfig();
        },
        methods: {
            newUid() {
                return `${Date.now()}_${Math.random().toString(36).slice(2, 8)}`;
            },
            // Provider 模板：只放公共字段，避免 Dify 每个应用重复填写。
            newProvider() {
                return {
                    uid: this.newUid(),
                    name: '',
                    provider_type: 'dify',
                    enabled: true,
                    config: {
                        provider: 'dify',
                        api_base_url: '',
                        endpoint: 'workflows/run',
                        mode: 'workflow',
                        response_mode: 'blocking',
                        request_timeout: 60,
                        max_retries: 3,
                        retry_delay_seconds: 1.0
                    }
                };
            },
            // Dify 应用：只保留 app_key 与少量覆盖项，维护成本最低。
            newDifyApp() {
                return {
                    uid: this.newUid(),
                    name: '',
                    provider_template: '',
                    app_key: '',
                    workflow_output_key: 'text',
                    enabled: true,
                    config: {
                        mode: '',
                        endpoint: '',
                        response_mode: '',
                        request_timeout: 60
                    }
                };
            },
            newBackend() {
                return {
                    uid: this.newUid(),
                    name: '',
                    enabled: true,
                    config: {
                        provider: 'openai_compatible',
                        api_base_url: '',
                        endpoint: 'chat/completions',
                        api_key: '',
                        model: '',
                        temperature: 0.7,
                        max_tokens: 1024
                    }
                };
            },
            newScene() {
                return {
                    uid: this.newUid(),
                    name: '',
                    target_type: 'dify_app',
                    target_ref: '',
                    enabled: true
                };
            },
            normalizeProvider(item) {
                return {
                    uid: this.newUid(),
                    name: item.name || '',
                    provider_type: item.provider_type || 'dify',
                    enabled: item.enabled !== false,
                    config: { ...(item.config || {}) }
                };
            },
            normalizeDifyApp(item) {
                return {
                    uid: this.newUid(),
                    name: item.name || '',
                    provider_template: item.provider_template || '',
                    app_key: item.app_key || '',
                    workflow_output_key: item.workflow_output_key || 'text',
                    enabled: item.enabled !== false,
                    config: { ...(item.config || {}) }
                };
            },
            normalizeBackend(item) {
                return {
                    uid: this.newUid(),
                    name: item.name || '',
                    enabled: item.enabled !== false,
                    config: { ...(item.config || {}) }
                };
            },
            normalizeScene(item) {
                return {
                    uid: this.newUid(),
                    name: item.name || '',
                    target_type: item.target_type || 'dify_app',
                    target_ref: item.target_ref || '',
                    enabled: item.enabled !== false
                };
            },
            addProvider() { this.catalog.providers.push(this.newProvider()); },
            removeProvider(index) {
                const removed = this.catalog.providers[index];
                this.catalog.providers.splice(index, 1);
                if (removed && removed.name) {
                    (this.catalog.dify_apps || []).forEach(app => {
                        if (app.provider_template === removed.name) {
                            app.provider_template = '';
                        }
                    });
                }
            },
            addDifyApp() { this.catalog.dify_apps.push(this.newDifyApp()); },
            removeDifyApp(index) {
                const removed = this.catalog.dify_apps[index];
                this.catalog.dify_apps.splice(index, 1);
                if (removed && removed.name) {
                    (this.catalog.scenes || []).forEach(scene => {
                        if (scene.target_type === 'dify_app' && scene.target_ref === removed.name) {
                            scene.target_ref = '';
                        }
                    });
                }
            },
            addBackend() { this.catalog.backends.push(this.newBackend()); },
            removeBackend(index) {
                const removed = this.catalog.backends[index];
                this.catalog.backends.splice(index, 1);
                if (removed && removed.name) {
                    (this.catalog.scenes || []).forEach(scene => {
                        if (scene.target_type === 'backend' && scene.target_ref === removed.name) {
                            scene.target_ref = '';
                        }
                    });
                }
            },
            addScene() { this.catalog.scenes.push(this.newScene()); },
            removeScene(index) {
                const removed = this.catalog.scenes[index];
                this.catalog.scenes.splice(index, 1);
                if (removed && removed.name && this.catalog.default_scene === removed.name) {
                    this.catalog.default_scene = '';
                }
            },
            getSceneTargetOptions(targetType) {
                if (targetType === 'backend') {
                    return this.backendNameOptions;
                }
                return this.difyAppNameOptions;
            },
            async loadLlmConfig() {
                try {
                    const response = await axios.get('/api/system/llm_config');
                    if (!response.data.success) {
                        this.$message.error(response.data.message || '读取 LLM 目录失败');
                        return;
                    }
                    const data = response.data.data || {};
                    this.configPath = data.config_path || '';
                    this.catalog.default_scene = data.default_scene || '';
                    this.catalog.providers = (data.providers || []).map(item => this.normalizeProvider(item));
                    this.catalog.dify_apps = (data.dify_apps || []).map(item => this.normalizeDifyApp(item));
                    this.catalog.backends = (data.backends || []).map(item => this.normalizeBackend(item));
                    this.catalog.scenes = (data.scenes || []).map(item => this.normalizeScene(item));
                    this.topologyRows = data.topology_rows || [];
                } catch (error) {
                    this.$message.error(error.response?.data?.message || '读取 LLM 目录失败');
                }
            },
            async saveLlmConfig() {
                // 严格校验：防止提交残缺目录导致运行时无法路由。
                const invalidProvider = (this.catalog.providers || []).find(item => !String(item.name || '').trim());
                if (invalidProvider) {
                    this.$message.error('Provider 模板名称不能为空');
                    return;
                }
                const invalidApp = (this.catalog.dify_apps || []).find(item => {
                    return !String(item.name || '').trim()
                        || !String(item.provider_template || '').trim()
                        || !String(item.app_key || '').trim();
                });
                if (invalidApp) {
                    this.$message.error('Dify 应用缺少必填项（name/provider_template/app_key）');
                    return;
                }
                const invalidScene = (this.catalog.scenes || []).find(item => {
                    return !String(item.name || '').trim()
                        || !String(item.target_type || '').trim()
                        || !String(item.target_ref || '').trim();
                });
                if (invalidScene) {
                    this.$message.error('Scene 绑定缺少必填项（name/target_type/target_ref）');
                    return;
                }
                if (this.catalog.default_scene && !this.sceneNameOptions.includes(this.catalog.default_scene)) {
                    this.$message.error('默认场景不存在，请重新选择');
                    return;
                }

                const payload = {
                    default_scene: this.catalog.default_scene || '',
                    providers: (this.catalog.providers || []).map(item => {
                        const cleaned = { ...item };
                        delete cleaned.uid;
                        return cleaned;
                    }),
                    dify_apps: (this.catalog.dify_apps || []).map(item => {
                        const cleaned = { ...item };
                        delete cleaned.uid;
                        return cleaned;
                    }),
                    backends: (this.catalog.backends || []).map(item => {
                        const cleaned = { ...item };
                        delete cleaned.uid;
                        return cleaned;
                    }),
                    scenes: (this.catalog.scenes || []).map(item => {
                        const cleaned = { ...item };
                        delete cleaned.uid;
                        return cleaned;
                    })
                };

                try {
                    const response = await axios.post('/api/system/llm_config', payload);
                    if (response.data.success) {
                        this.$message.success(response.data.message || '保存成功');
                        this.loadLlmConfig();
                    } else {
                        this.$message.error(response.data.message || '保存失败');
                    }
                } catch (error) {
                    this.$message.error(error.response?.data?.message || '保存失败');
                }
            }
        }
    });
</script>
<style>
    .system-page { display: flex; flex-direction: column; gap: 20px; }
    .page-hero {
        display: flex; align-items: flex-end; justify-content: space-between; gap: 24px;
        background: linear-gradient(135deg, rgba(248,250,252,0.96), rgba(226,232,240,0.88));
        border: 1px solid rgba(148,163,184,0.16);
        border-radius: 24px; padding: 28px 32px; box-shadow: 0 18px 48px rgba(15,23,42,0.06);
    }
    .page-eyebrow { font-size: 12px; text-transform: uppercase; letter-spacing: .08em; color: #0ea5e9; font-weight: 700; margin-bottom: 8px; }
    .page-hero-copy h1 { font-size: 30px; line-height: 1.1; margin-bottom: 10px; color: #0f172a; }
    .page-hero-copy p { color: #64748b; font-size: 14px; }
    .workspace-card { border-radius: 18px; border: 1px solid rgba(148,163,184,0.16); }
    .workspace-header { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
    .workspace-header h3 { font-size: 18px; margin-bottom: 4px; }
    .workspace-header p { font-size: 13px; color: #64748b; }
    .config-meta { display: flex; gap: 12px; color: #64748b; font-size: 12px; flex-wrap: wrap; }
    .section-list { display: flex; flex-direction: column; gap: 12px; }
    .entry-card { border: 1px solid rgba(148,163,184,0.16); border-radius: 14px; }
    .entry-header { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
    .entry-grid { display: grid; grid-template-columns: repeat(2, minmax(220px, 1fr)); gap: 10px 14px; }
    .scene-row {
        display: grid;
        grid-template-columns: minmax(260px, 1fr) minmax(160px, 220px) minmax(220px, 1fr) auto;
        gap: 10px;
        align-items: center;
    }
    .danger-text { color: #dc2626; }
    @media (max-width: 960px) {
        .page-hero { flex-direction: column; align-items: flex-start; }
        .workspace-header { flex-direction: column; align-items: flex-start; }
        .entry-grid { grid-template-columns: 1fr; }
        .scene-row { grid-template-columns: 1fr; }
    }
</style>
{% endblock %}