<template>
  <!-- 求职助手页面 -->
  <div class="agent-page dflex">
    <!-- 左侧导航栏 -->
    <SideNav />

    <!-- 主内容区域 -->
    <div class="agent-page__content" v-loading="pageLoading" element-loading-text="加载中...">
      <!-- 准备向导 — 第1步到第4步 -->
      <AgentSetupWizard
        v-if="!pageLoading && showSetupWizard"
        :initial-config="agentConfig"
        @complete="handleSetupComplete"
        @launch="handleLaunch"
      />

      <!-- 求职助手正式内容区域 -->
      <div v-else-if="!pageLoading" class="agent-main" :class="{ 'agent-main--with-panel': showRightPanel }">
        <!-- 左侧主区域 -->
        <div class="agent-main__left">
          <!-- 顶部固定设置栏 -->
          <div class="agent-main__top-bar">
            <!-- 用户头像 -->
            <div class="agent-main__avatar">
              <svg viewBox="0 0 24 24" fill="none">
                <circle cx="12" cy="8" r="4" stroke="currentColor" stroke-width="1.5" />
                <path d="M4 20c0-3.3 3.6-6 8-6s8 2.7 8 6" stroke="currentColor" stroke-width="1.5" />
              </svg>
            </div>
            <!-- 状态标签 -->
            <span v-if="applyJobList.length > 0" class="agent-main__status-tag">准备就绪</span>
            <!-- 提示文字 -->
            <span class="agent-main__status-text">{{ applyJobList.length > 0 ? `已添加${applyJobList.length}个岗位，随时可以开始投递` : '请添加岗位' }}</span>
            <!-- 开始按钮（投递中时置灰不可点击，暂停时显示继续可点击） -->
            <button
              class="agent-main__start-btn"
              :disabled="isApplying && !isPaused"
              @click="handleTopBarStartClick"
            >{{ isApplying ? (isPaused ? '继续' : '投递中...') : '开始 ▸' }}</button>
            <!-- 右侧工具按钮 -->
            <div class="agent-main__tools">
              <!-- 待投递列表按钮 -->
              <button class="agent-main__tool-btn" title="待投递列表" @click.stop="toggleTaskListDropdown">
                <svg viewBox="0 0 24 24" fill="none">
                  <path d="M4 6h16M4 12h16M4 18h16" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" />
                </svg>
              </button>
              <!-- 待投递列表下拉弹窗 -->
              <AgentTaskListDropdown
                v-if="showTaskListDropdown"
                :pending-list="applyJobList"
                @removed="handleTaskRemoved"
                @view-all="showTaskListDropdown = false"
              />
              <!-- 齿轮按钮 -->
<!--              <button class="agent-main__tool-btn" title="配置">-->
<!--                <svg viewBox="0 0 24 24" fill="none">-->
<!--                  <circle cx="12" cy="12" r="3" stroke="currentColor" stroke-width="1.5" />-->
<!--                  <path d="M12 1v2m0 18v2m-9-11h2m18 0h2m-3.3-7.7-1.4 1.4M4.7 19.3l1.4-1.4m0-11.8L4.7 4.7m14.6 14.6-1.4-1.4" stroke="currentColor" stroke-width="1.5" stroke-linecap="round" />-->
<!--                </svg>-->
<!--              </button>-->
            </div>
          </div>

          <!-- 中间聊天记录区域（可滚动） -->
          <div ref="chatAreaRef" class="agent-main__chat-area">
            <!-- 遍历对话消息列表 -->
            <template v-for="msg in chatMessages" :key="msg.id">
              <!-- 用户消息 — 右对齐 -->
              <div v-if="msg.type === 'user'" class="agent-main__chat-row agent-main__chat-row--user">
                <div class="agent-main__chat-bubble agent-main__chat-bubble--user">{{ msg.content }}</div>
              </div>

              <!-- AI 助手消息 — 左对齐 -->
              <div v-else-if="msg.type === 'assistant'" class="agent-main__chat-row">
                <div class="agent-main__chat-bubble">{{ msg.content }}</div>
              </div>

              <!-- 推荐岗位消息 — 渲染岗位列表组件 -->
              <div v-else-if="msg.type === 'recommend'" class="agent-main__chat-row">
                <!-- 如果 extra 里有岗位数据，用岗位列表组件展示 -->
                <AgentChatJobList
                  :summary="getRecommendSummaryFromExtra(msg.extra)"
                  :jobs="getRecommendJobsFromExtra(msg.extra)"
                  @view-all="handleOpenRecommendPanel(msg.id)"
                />
              </div>

              <!-- 投递进度消息 — 仅显示最新 recommend 之后的 apply_progress -->
              <div v-else-if="msg.type === 'apply_progress' && isVisibleApplyProgress(msg.id)" class="agent-main__chat-row">
                <AgentApplyProgress
                  :job-info="getApplyProgressJobInfo(msg.extra)"
                  :current-step="getApplyProgressStep(msg.extra)"
                  :resume-name="getApplyProgressResumeName(msg.extra)"
                  :paused="isPaused"
                  @cancel="handleCancelApply(msg)"
                  @confirm-resume="handleConfirmResumeStep(msg)"
                  @skip="handleSkipApply(msg)"
                  @applied="handleAppliedStep(msg)"
                  @go-apply="handleGoApplyStep(msg)"
                  @toggle-pause="handleTogglePause"
                />
              </div>
            </template>

            <!-- 会话岗位列表组件（来自推荐接口，非历史消息） -->

            <!-- AI 正在回复的加载指示器 -->
            <AiThinkingIndicator v-if="isSending" text="AI正在思考中" />
          </div>

          <!-- 底部固定输入框 -->
          <div class="agent-main__input-bar">
            <input
              v-model="chatInput"
              class="agent-main__input"
              placeholder="告诉我你想找什么样的工作"
              :disabled="isSending"
              @keyup.enter="handleSendMessage"
            />
            <button class="agent-main__send-btn" :disabled="isSending" @click="handleSendMessage">
              <svg viewBox="0 0 24 24" fill="none">
                <path d="M5 12h14M12 5l7 7-7 7" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round" />
              </svg>
            </button>
          </div>
        </div>

        <!-- 右侧匹配岗位添加面板 / 简历生成进度 / 简历预览 -->
        <div v-if="showRightPanel" class="agent-main__right">
          <!-- 模式1：匹配岗位添加面板 -->
          <AgentMatchJobAdd
            v-if="rightPanelMode === 'recommend'"
            :jobs="activeRecommendJobs"
            :loading-job-ids="loadingJobIds"
            :panel-loading="panelLoading"
            @close="handleCloseRecommendPanel"
            @view-more="handleViewMoreJobs"
            @toggle="handleToggleJobApply"
            @add-all="handleAddAllJobs"
          />
          <!-- 模式2：简历生成进度 -->
          <div v-else-if="rightPanelMode === 'generating'" class="agent-resume-generating">
            <div class="agent-resume-generating__progress-bar">
              <div class="agent-resume-generating__progress-fill" :style="{ width: generateProgress + '%' }"></div>
            </div>
            <div class="agent-resume-generating__title">正在生成岗位专属简历</div>
            <div class="agent-resume-generating__hint">
              <svg viewBox="0 0 16 16" fill="none" class="agent-resume-generating__hint-icon"><circle cx="8" cy="8" r="7" stroke="currentColor" stroke-width="1.2"/><path d="M8 5v3M8 10.5v.5" stroke="currentColor" stroke-width="1.2" stroke-linecap="round"/></svg>
              <span>生成简历大约需要10-20秒</span>
            </div>
          </div>
          <!-- 模式3：简历预览 -->
          <div v-else-if="rightPanelMode === 'resume'" class="agent-main__right-resume">
            <JobResumeTemplate :resume-data="applyResumeData" />
          </div>
        </div>
      </div>
    </div>
  </div>
</template>

<script setup lang="ts">
import { ref, computed, onMounted, nextTick } from 'vue'
import SideNav from '@/components/SideNav.vue'
import AgentSetupWizard from '@/components/AgentSetupWizard.vue'
import AgentChatJobList from '@/components/AgentChatJobList.vue'
import AgentMatchJobAdd from '@/components/AgentMatchJobAdd.vue'
import AgentApplyProgress from '@/components/AgentApplyProgress.vue'
import AgentTaskListDropdown from '@/components/AgentTaskListDropdown.vue'
import JobResumeTemplate from '@/components/JobResumeTemplate.vue'
import type { ResumeTemplateData } from '@/components/JobResumeTemplate.vue'
import { fetchAgentConfig, saveAgentConfig, fetchAgentRecommend, fetchAgentChatMessages, addAgentChatMessage, applyJob, cancelApplyJob, fetchApplyByJobIds, sendAgentChat, optimizeAgentResume } from '@/api/agent'
import type { AgentConfig, AgentRecommendJob, AgentChatMessage, AgentChatHistoryItem } from '@/api/agent'
import { fetchAgentTaskList } from '@/api/jobs'
import type { JobListItem } from '@/api/jobs'
import { fetchResumeList } from '@/api/resume'
import { getIntentionCategoryNames, getIntentionRegionNames, getIntentionIndustryNames } from '@/utils/intention'
import AiThinkingIndicator from '@/components/tools/AiThinkingIndicator.vue'

/** 页面初始加载状态 */
const pageLoading = ref(true)

/** 是否显示准备向导 */
const showSetupWizard = ref(true)

/** 从接口查询到的配置数据 — 传给向导组件做初始值 */
const agentConfig = ref<AgentConfig | null>(null)

/** 是否显示右侧匹配岗位面板 */
const showRightPanel = ref(false)

/** 当前右侧面板展示的 recommend 消息 ID */
const activeRecommendMsgId = ref<number | null>(null)

/** 对话消息列表 */
const chatMessages = ref<AgentChatMessage[]>([])

/** 根据当前选中的 recommend 消息 ID，解析其 extra 中的岗位列表 */
const activeRecommendJobs = computed(() => {
  if (activeRecommendMsgId.value === null) return [] as AgentRecommendJob[]
  const msg = chatMessages.value.find(m => m.id === activeRecommendMsgId.value)
  if (!msg || !msg.extra) return [] as AgentRecommendJob[]
  return getRecommendJobsFromExtra(msg.extra)
})

/** 聊天输入框内容 */
const chatInput = ref('')

/** 待投递列表数据 */
const applyJobList = ref<JobListItem[]>([])

/** 待投递列表下拉弹窗是否显示 */
const showTaskListDropdown = ref(false)

/** 正在请求中的岗位 ID 列表（传给子组件控制按钮 loading） */
const loadingJobIds = ref<number[]>([])

/** 右侧面板加载状态（查询投递记录期间显示 loading） */
const panelLoading = ref(false)

/** 默认简历 ID — 发送 AI 对话时需要（字符串避免大整数精度丢失） */
const defaultResumeId = ref('')

/** 是否正在发送消息（防止重复发送 + 显示等待状态） */
const isSending = ref(false)

/** 是否正在投递流程中（防止重复点击开始按钮） */
const isApplying = ref(false)

/** 是否暂停投递 */
const isPaused = ref(false)

/** 聊天区域 DOM 引用 */
const chatAreaRef = ref<HTMLElement | null>(null)

/** 滚动聊天区域到底部（平滑滚动） */
function scrollChatToBottom() {
  if (chatAreaRef.value) {
    chatAreaRef.value.scrollTo({ top: chatAreaRef.value.scrollHeight, behavior: 'smooth' })
  }
}

/** 页面挂载时查询配置 */
onMounted(async () => {
  await loadAgentConfig()
  // 点击页面其他区域关闭待投递列表下拉
  document.addEventListener('click', closeTaskDropdownOnClickOutside)
})

/** 点击外部关闭待投递列表下拉 */
function closeTaskDropdownOnClickOutside() {
  showTaskListDropdown.value = false
}

/** 查询求职助手配置 */
async function loadAgentConfig() {
  pageLoading.value = true
  try {
    const res = await fetchAgentConfig()
    pageLoading.value = false
    if (res.code === '0' && res.data) {
      agentConfig.value = res.data
      /* 如果已启用（status=1），直接进入正式内容 */
      if (res.data.status === 1) {
        showSetupWizard.value = false
        await loadChatMessages()
        await loadApplyList()
        await loadDefaultResumeId()
        /* 没有历史消息时才自动请求推荐岗位 */
        if (chatMessages.value.length === 0) {
          await loadRecommendJobs()
        }
      }
    }
  } catch {
    console.error('[Agent] 查询求职助手配置失败')
  } finally {

  }
}

/** 加载推荐岗位列表 — 请求后将结果作为 recommend 消息存入对话记录 */
async function loadRecommendJobs() {
  try {
    const res = await fetchAgentRecommend()
    if (res.code === '0' && res.data && res.data.list?.length > 0) {
      const summary = res.data.summary || ''
      const jobList = res.data.list

      // if(jobList.length==0){
      //   const aiNow = Math.floor(Date.now() / 1000)
      //   chatMessages.value.push({
      //     id: Date.now() + 1,
      //     type: 'assistant',
      //     content: '暂无相关职位推荐',
      //     extra: '',
      //     createTime: { seconds: aiNow, nanos: 0 },
      //   })
      //   try {
      //     await addAgentChatMessage({ type: 'assistant', content: '暂无相关职位推荐' })
      //   } catch { /* 静默 */ }
      // }
      /* 将完整岗位数据序列化为 extra JSON */
      const extraJson = JSON.stringify({ summary, list: jobList })

      /* 调接口持久化这条 recommend 消息 */
      try {
        await addAgentChatMessage({
          type: 'recommend',
          content: '',
          extra: extraJson,
        })
      } catch {
        console.error('[Agent] 保存推荐消息失败')
      }

      /* 追加到本地对话消息列表 */
      const now = Math.floor(Date.now() / 1000)
      chatMessages.value.push({
        id: Date.now(),
        type: 'recommend',
        content: '',
        extra: extraJson,
        createTime: { seconds: now, nanos: 0 },
      })

      /* 滚动到底部 */
      await nextTick()
      scrollChatToBottom()
    }
  } catch {
    console.error('[Agent] 加载推荐岗位失败')
  }
}

/** 加载 Agent 对话消息列表 */
async function loadChatMessages() {
  try {
    const res = await fetchAgentChatMessages(50)
    if (res.code === '0' && res.data) {
      chatMessages.value = res.data
      /* 加载完成后滚动到底部 */
      await nextTick()
      scrollChatToBottom()
    }
  } catch {
    console.error('[Agent] 加载对话消息失败')
  }
}

/** 加载求职助手任务列表（tab=1 进行中/待投递） */
async function loadApplyList() {
  try {
    const res = await fetchAgentTaskList({ pageNum: 1, pageSize: 100, tab: 1 })
    if (res.code === '0' && res.data) {
      applyJobList.value = res.data.list || []
    }
  } catch {
    console.error('[Agent] 加载求职助手任务列表失败')
  }
}

/** 切换待投递列表下拉弹窗显隐 */
function toggleTaskListDropdown() {
  showTaskListDropdown.value = !showTaskListDropdown.value
  if (showTaskListDropdown.value) {
    loadApplyList()
  }
}

/** 岗位从待投递列表中移除后的回调 */
function handleTaskRemoved(jobId: string) {
  const idx = applyJobList.value.findIndex(j => j.id === jobId)
  if (idx !== -1) {
    applyJobList.value.splice(idx, 1)
  }
}

/** 加载默认简历 ID */
async function loadDefaultResumeId() {
  try {
    const res = await fetchResumeList()
    if (res.code === '0' && res.data && res.data.length > 0) {
      const defaultResume = res.data.find(r => r.isDefault === 1)
      const id = defaultResume?.id || res.data[0]?.id || ''
      defaultResumeId.value = id
    }
  } catch {
    console.error('[Agent] 加载默认简历失败')
  }
}

/**
 * 将 chatMessages 组装为 AI 对话接口需要的 history 格式
 * user / assistant → content 取 chatMessages.content
 * recommend / apply_progress → content 取 chatMessages.extra
 */
function buildChatHistory(): AgentChatHistoryItem[] {
  return chatMessages.value.map(msg => {
    const role = (msg.type === 'user') ? 'user' : 'assistant'
    let content = ''
    if (msg.type === 'user' || msg.type === 'assistant') {
      content = msg.content || ''
    } else {
      /* recommend / apply_progress — 用 extra 作为内容 */
      content = msg.extra || msg.content || ''
    }
    return { role, content }
  })
}

/**
 * 从消息的 extra JSON 中解析推荐岗位列表
 * extra 格式预期为 JSON 字符串，包含 list 字段
 */
function getRecommendJobsFromExtra(extra: string): AgentRecommendJob[] {
  if (!extra) return []
  try {
    const parsed = JSON.parse(extra)
    return Array.isArray(parsed.list) ? parsed.list : (Array.isArray(parsed) ? parsed : [])
  } catch {
    return []
  }
}

/** 从消息的 extra JSON 中解析推荐说明文字 */
function getRecommendSummaryFromExtra(extra: string): string {
  if (!extra) return ''
  try {
    const parsed = JSON.parse(extra)
    return parsed.summary || ''
  } catch {
    return ''
  }
}

/**
 * 收集 chatMessages 中所有 recommend 消息里的岗位 ID
 * 返回字符串数组，避免大整数精度丢失
 */
function collectExcludeJobIds(): string[] {
  const ids: string[] = []
  for (const msg of chatMessages.value) {
    if (msg.type !== 'recommend' || !msg.extra) continue
    const jobs = getRecommendJobsFromExtra(msg.extra)
    for (const job of jobs) {
      ids.push(String(job.id))
    }
  }
  return ids
}

/** 准备向导设置完成 — 调用接口保存配置 */
async function handleSetupComplete(data: Record<string, any>) {
  try {
    await saveAgentConfig(data as AgentConfig)
    ElMessage.success('配置保存成功')
  } catch {
    ElMessage.error('配置保存失败，请重试')
  }
}

/** 启用求职助手 */
async function handleLaunch() {
  showSetupWizard.value = false
  ElMessage.success('求职助手已启用')
  /* 进入正式内容后加载对话消息和推荐岗位 */
  await loadChatMessages()
  await loadApplyList()
  await loadDefaultResumeId()
  /* 没有历史消息时才自动请求推荐岗位 */
  if (chatMessages.value.length === 0) {
    await loadRecommendJobs()
  }
}

/**
 * 更新对话消息中 recommend 消息里对应岗位的 applicationStatus
 */
function updateJobStatusInMessages(jobId: number, newStatus: number | null) {
  for (const msg of chatMessages.value) {
    if (msg.type !== 'recommend' || !msg.extra) continue
    try {
      const parsed = JSON.parse(msg.extra)
      const list: AgentRecommendJob[] = Array.isArray(parsed.list) ? parsed.list : (Array.isArray(parsed) ? parsed : [])
      const job = list.find(j => j.id === jobId)
      if (job) {
        job.applicationStatus = newStatus
        if (parsed.list) {
          parsed.list = list
          msg.extra = JSON.stringify(parsed)
        } else {
          msg.extra = JSON.stringify(list)
        }
      }
    } catch { /* 解析失败跳过 */ }
  }
}

/**
 * 单个岗位添加/移除 — 由子组件 toggle 事件触发
 * 未投递(null) → POST 添加到待投递(-1)
 * 待投递(-1) → DELETE 移除
 */
async function handleToggleJobApply(job: AgentRecommendJob) {
  if (loadingJobIds.value.includes(job.id)) return

  const isRemoving = job.applicationStatus === -1
  loadingJobIds.value.push(job.id)
  try {
    if (isRemoving) {
      await cancelApplyJob(job.id)
    } else {
      await applyJob({ jobId: job.id, status: -1 })
    }
    /* 更新对话消息中的岗位状态 */
    updateJobStatusInMessages(job.id, isRemoving ? null : -1)
    await loadApplyList()
    ElMessage.success(isRemoving ? '岗位已从待投递移除' : '岗位已添加到待投递')
  } catch {
    ElMessage.error('操作失败，请重试')
  } finally {
    loadingJobIds.value = loadingJobIds.value.filter(id => id !== job.id)
  }
}

/**
 * 全部添加 — 由子组件 addAll 事件触发
 * 将当前面板中所有未添加的岗位批量设为待投递
 */
async function handleAddAllJobs() {
  const pendingJobs = activeRecommendJobs.value.filter(j => j.applicationStatus === null || j.applicationStatus === undefined)
  if (pendingJobs.length === 0) {
    ElMessage.info('所有岗位已添加到待投递')
    return
  }
  for (const job of pendingJobs) {
    if (loadingJobIds.value.includes(job.id)) continue
    loadingJobIds.value.push(job.id)
    try {
      await applyJob({ jobId: job.id, status: -1 })
      updateJobStatusInMessages(job.id, -1)
    } catch { /* 单个失败不阻断后续 */ }
    finally {
      loadingJobIds.value = loadingJobIds.value.filter(id => id !== job.id)
    }
  }
  await loadApplyList()
  ElMessage.success('已全部添加到待投递')
}

/** 查看更多岗位 — 可扩展为加载下一批 */
function handleViewMoreJobs() {
  // TODO: 后续可对接分页加载更多岗位
}

/** 打开右侧匹配岗位面板 — 先查询投递记录更新岗位状态再显示 */
async function handleOpenRecommendPanel(msgId: number) {
  activeRecommendMsgId.value = msgId
  showRightPanel.value = true
  panelLoading.value = true

  try {
    /* 取出当前 recommend 消息中的岗位 ID 列表 */
    const msg = chatMessages.value.find(m => m.id === msgId)
    if (!msg || !msg.extra) return

    const jobs = getRecommendJobsFromExtra(msg.extra)
    const jobIds = jobs.map(j => j.id)
    if (jobIds.length === 0) return

    /* 调接口批量查询投递记录 */
    const res = await fetchApplyByJobIds(jobIds)
    if (res.code === '0' && res.data) {
      /* 构建 jobId → status 映射 */
      const statusMap = new Map<number, number>()
      for (const record of res.data) {
        statusMap.set(record.jobId, record.status)
      }
      /* 更新 extra 中每个岗位的 applicationStatus */
      const parsed = JSON.parse(msg.extra)
      const list: AgentRecommendJob[] = Array.isArray(parsed.list) ? parsed.list : (Array.isArray(parsed) ? parsed : [])
      for (const job of list) {
        if (statusMap.has(job.id)) {
          job.applicationStatus = statusMap.get(job.id)!
        } else {
          /* 接口没有返回该岗位记录 — 说明没有投递记录，设为 null */
          job.applicationStatus = null
        }
      }
      /* 回写 extra */
      if (parsed.list) {
        parsed.list = list
        msg.extra = JSON.stringify(parsed)
      } else {
        msg.extra = JSON.stringify(list)
      }
    }
  } catch {
    console.error('[Agent] 查询岗位投递记录失败')
  } finally {
    panelLoading.value = false
  }
}

/** 关闭右侧匹配岗位面板 */
function handleCloseRecommendPanel() {
  showRightPanel.value = false
  activeRecommendMsgId.value = null
  rightPanelMode.value = 'recommend'
}

// ==================== 投递进度流程 ====================

/** 右侧面板显示模式：recommend-岗位推荐 / generating-简历生成中 / resume-简历预览 */
const rightPanelMode = ref<'recommend' | 'generating' | 'resume'>('recommend')

/** 简历生成进度百分比（0-100） */
const generateProgress = ref(0)

/** 当前投递流程的简历数据 */
const applyResumeData = ref<ResumeTemplateData>({} as ResumeTemplateData)

/** 当前投递流程的简历名称 */
const applyResumeName = ref('')

/** 进度条定时器 */
let progressTimer: ReturnType<typeof setInterval> | null = null

/** 启动模拟进度条（慢慢增长到 90%，接口返回后快速涨满） */
function startProgressSimulation() {
  generateProgress.value = 0
  let elapsed = 0
  progressTimer = setInterval(() => {
    elapsed += 300
    // 前 5 秒涨到 30%，5-15 秒涨到 70%，15-25 秒涨到 90%
    if (generateProgress.value < 30) {
      generateProgress.value += 2
    } else if (generateProgress.value < 70) {
      generateProgress.value += 1
    } else if (generateProgress.value < 90) {
      generateProgress.value += 0.5
    }
    // 最多到 90%
    if (generateProgress.value >= 90) {
      generateProgress.value = 90
    }
  }, 300)
}

/** 停止进度条并涨满 */
function finishProgress() {
  if (progressTimer) {
    clearInterval(progressTimer)
    progressTimer = null
  }
  generateProgress.value = 100
}

/** 学历文字转数字（接口返回中文，模板需要数字） */
function degreeToNumber(degree?: string): number {
  const map: Record<string, number> = { '大专': 1, '本科': 2, '硕士': 3, '博士': 4 }
  return map[degree || ''] || 2
}

/** 将优化简历接口返回数据映射为 ResumeTemplateData 格式 */
function mapOptimizeResumeToTemplate(data: any): ResumeTemplateData {
  const r = data.resume || {}
  return {
    name: r.name || '未填写姓名',
    email: r.email || '',
    mobileNumber: r.mobileNumber || '',
    wechatNumber: r.wechatNumber || '',
    summary: r.summary || '',
    educations: (data.education || []).map((e: any) => ({
      school: e.school || '',
      major: e.major || '',
      degree: degreeToNumber(e.degree),
      startDate: e.startDate || '',
      endDate: e.endDate || '',
      description: (e.description || []).map((d: any) => ({ id: d.id, text: d.text || '' })),
    })),
    workExperiences: (data.work || []).map((w: any) => ({
      companyName: w.companyName || '',
      position: w.position || '',
      startDate: w.startDate || '',
      endDate: w.endDate || '',
      description: (w.description || []).map((d: any) => ({ id: d.id, text: d.text || '' })),
    })),
    internships: (data.internship || []).map((i: any) => ({
      companyName: i.companyName || '',
      position: i.position || '',
      startDate: i.startDate || '',
      endDate: i.endDate || '',
      description: (i.description || []).map((d: any) => ({ id: d.id, text: d.text || '' })),
    })),
    projects: (data.project || []).map((p: any) => ({
      projectName: p.projectName || '',
      companyName: p.companyName || '',
      role: p.role || '',
      startDate: p.startDate || '',
      endDate: p.endDate || '',
      description: (p.description || []).map((d: any) => ({ id: d.id, text: d.text || '' })),
    })),
    competitions: (data.competition || []).map((c: any) => ({
      competitionName: c.competitionName || '',
      award: c.award || '',
      awardDate: c.awardDate || '',
      description: (c.description || []).map((d: any) => ({ id: d.id, text: d.text || '' })),
    })),
    skills: r.skills || [],
    certificates: r.certificates || [],
  }
}

/**
 * 点击"开始"按钮 — 启动投递流程
 * 1. 刷新待投递列表
 * 2. 取第一个岗位
 * 3. 创建 apply_progress 消息
 * 4. 开始第1步：优化简历
 */
async function handleStartApply() {
  // 防抖：投递中不可重复点击
  if (isApplying.value) return
  isApplying.value = true

  // 刷新待投递列表
  await loadApplyList()

  if (applyJobList.value.length === 0) {
    ElMessage.warning('暂无待投递岗位，请先添加岗位')
    isApplying.value = false
    return
  }

  // 取第一个岗位
  const targetJob = applyJobList.value[0]

  // 构建 extra 数据
  const extraData = {
    jobInfo: targetJob,
    resumeInfo: null as any,
    step: 1,
  }

  // 创建 apply_progress 消息并追加到对话列表
  const now = Math.floor(Date.now() / 1000)
  const applyMsg: AgentChatMessage = {
    id: Date.now(),
    type: 'apply_progress',
    content: '',
    extra: JSON.stringify(extraData),
    createTime: { seconds: now, nanos: 0 },
  }
  chatMessages.value.push(applyMsg)

  await nextTick()
  scrollChatToBottom()

  // ========== 第1步：优化简历 ==========
  // 打开右侧面板，显示生成进度
  rightPanelMode.value = 'generating'
  showRightPanel.value = true
  startProgressSimulation()

  try {
    const res = await optimizeAgentResume({
      resumeId: defaultResumeId.value,
      jobId: targetJob.id,
    })

    // 接口返回后涨满进度条
    finishProgress()

    // 等待 1 秒让用户看到 100%
    await new Promise(resolve => setTimeout(resolve, 1000))

    // 解析简历数据 — 映射接口返回格式到 ResumeTemplateData
    const apiData = res?.data || res
    if (apiData) {
      const resumeResult = mapOptimizeResumeToTemplate(apiData)
      // 保存简历数据
      applyResumeData.value = resumeResult
      applyResumeName.value = resumeResult.name || '岗位专属简历'

      // 更新 extra：存入 resumeInfo，step 进到 2
      extraData.resumeInfo = apiData
      extraData.step = 2
      applyMsg.extra = JSON.stringify(extraData)

      // 切换右侧面板为简历预览
      rightPanelMode.value = 'resume'
    }
  } catch (e) {
    console.error('[Agent] 优化简历失败', e)
    ElMessage.error('简历优化失败，请重试')
    finishProgress()
    showRightPanel.value = false
    rightPanelMode.value = 'recommend'
    isApplying.value = false
  }
}

// ==================== apply_progress 消息辅助方法 ====================

/** 从 extra 中解析岗位信息 */
function getApplyProgressJobInfo(extra: string): JobListItem | null {
  try {
    const parsed = JSON.parse(extra)
    return parsed.jobInfo || null
  } catch {
    return null
  }
}

/** 从 extra 中解析当前步骤 */
function getApplyProgressStep(extra: string): number {
  try {
    const parsed = JSON.parse(extra)
    return parsed.step || 1
  } catch {
    return 1
  }
}

/** 从 extra 中解析简历名称 */
function getApplyProgressResumeName(extra: string): string {
  try {
    const parsed = JSON.parse(extra)
    return parsed.resumeInfo?.name || '岗位专属简历'
  } catch {
    return '岗位专属简历'
  }
}

/**
 * apply_progress 显示模式
 * 'afterRecommend' — 显示最新 recommend 之后的所有 apply_progress
 * 'latestOnly' — 只显示最新一条 apply_progress
 * 切换此变量即可手动切换显示效果
 */
const applyProgressDisplayMode = ref<'afterRecommend' | 'latestOnly'>('latestOnly')

/**
 * 判断 apply_progress 消息是否应该显示
 */
function isVisibleApplyProgress(msgId: number): boolean {
  if (applyProgressDisplayMode.value === 'latestOnly') {
    // 只显示最新一条 apply_progress
    for (let i = chatMessages.value.length - 1; i >= 0; i--) {
      if (chatMessages.value[i].type === 'apply_progress') {
        return chatMessages.value[i].id === msgId
      }
    }
    return false
  }

  // afterRecommend 模式：显示最新 recommend 之后的所有 apply_progress
  let lastRecommendIdx = -1
  for (let i = chatMessages.value.length - 1; i >= 0; i--) {
    if (chatMessages.value[i].type === 'recommend') {
      lastRecommendIdx = i
      break
    }
  }
  const msgIdx = chatMessages.value.findIndex(m => m.id === msgId)
  if (lastRecommendIdx === -1) return true
  return msgIdx > lastRecommendIdx
}

// ==================== apply_progress 步骤事件处理 ====================

/** 顶部栏按钮点击 — 未投递时开始，暂停时恢复 */
function handleTopBarStartClick() {
  if (isApplying.value && isPaused.value) {
    // 恢复投递
    isPaused.value = false
  } else if (!isApplying.value) {
    // 开始新的投递
    handleStartApply()
  }
}

/** 暂停/恢复投递（由 AgentApplyProgress 组件触发） */
function handleTogglePause() {
  isPaused.value = !isPaused.value
}

/** 取消投递流程 */
function handleCancelApply(msg: AgentChatMessage) {
  // 从消息列表中移除该条 apply_progress
  const idx = chatMessages.value.findIndex(m => m.id === msg.id)
  if (idx !== -1) {
    chatMessages.value.splice(idx, 1)
  }
  // 关闭右侧面板
  showRightPanel.value = false
  rightPanelMode.value = 'recommend'
  // 投递流程结束
  isApplying.value = false
}

/** 第2步：确认简历 */
function handleConfirmResumeStep(msg: AgentChatMessage) {
  try {
    const extraData = JSON.parse(msg.extra)
    // 勾选第2步，进入第3步
    extraData.step = 3
    msg.extra = JSON.stringify(extraData)
  } catch { /* 忽略 */ }
}

/** 第3步：跳过投递 */
function handleSkipApply(msg: AgentChatMessage) {
  try {
    const extraData = JSON.parse(msg.extra)
    // 勾选第3步，进入第4步（自动完成）
    extraData.step = 4
    msg.extra = JSON.stringify(extraData)
    // 持久化保存
    persistApplyProgressMessage(msg)
    // 自动开始下一个岗位投递（不关闭右侧面板，避免闪烁）
    autoStartNextApply()
  } catch { /* 忽略 */ }
}

/** 第3步：我已投递 — 调用 /job/apply 接口 */
async function handleAppliedStep(msg: AgentChatMessage) {
  try {
    const extraData = JSON.parse(msg.extra)
    const jobInfo = extraData.jobInfo
    if (!jobInfo) return

    // 调用投递接口，status=0 表示已投递，jobId 传字符串避免大整数精度丢失
    const res = await applyJob({ jobId: String(jobInfo.id), status: 0 })
    if (res.code === '0') {
      // 勾选第3步，进入第4步
      extraData.step = 4
      msg.extra = JSON.stringify(extraData)
      ElMessage.success('投递成功')
      // 持久化保存
      persistApplyProgressMessage(msg)
      // 自动开始下一个岗位投递（不关闭右侧面板，避免闪烁）
      autoStartNextApply()
    }
  } catch (e) {
    console.error('[Agent] 投递失败', e)
    ElMessage.error('投递失败，请重试')
  }
}

/** 第3步：去投递 — 打开原链接 */
function handleGoApplyStep(msg: AgentChatMessage) {
  try {
    const extraData = JSON.parse(msg.extra)
    const sourceUrl = extraData.jobInfo?.sourceUrl
    if (sourceUrl) {
      window.open(sourceUrl, '_blank')
    }
  } catch { /* 忽略 */ }
}

/** 持久化保存 apply_progress 消息到后端 */
async function persistApplyProgressMessage(msg: AgentChatMessage) {
  try {
    await addAgentChatMessage({
      type: 'apply_progress',
      content: msg.content,
      extra: msg.extra,
    })
  } catch {
    console.error('[Agent] 保存投递进度消息失败')
  }
}

/**
 * 自动开始下一个岗位投递
 * 当前岗位完成（step=4）后，如果未暂停，自动刷新列表并开始下一个
 */
async function autoStartNextApply() {
  // 如果已暂停，不自动继续
  if (isPaused.value) {
    isApplying.value = false
    return
  }

  // 刷新待投递列表
  await loadApplyList()

  if (applyJobList.value.length === 0) {
    // 没有更多待投递岗位，结束流程
    isApplying.value = false
    showRightPanel.value = false
    rightPanelMode.value = 'recommend'
    ElMessage.success('所有待投递岗位已处理完毕')
    return
  }

  // 取下一个岗位，开始新一轮投递
  const targetJob = applyJobList.value[0]
  const extraData = {
    jobInfo: targetJob,
    resumeInfo: null as any,
    step: 1,
  }

  const now = Math.floor(Date.now() / 1000)
  const applyMsg: AgentChatMessage = {
    id: Date.now(),
    type: 'apply_progress',
    content: '',
    extra: JSON.stringify(extraData),
    createTime: { seconds: now, nanos: 0 },
  }
  chatMessages.value.push(applyMsg)

  await nextTick()
  scrollChatToBottom()

  // 第1步：优化简历
  rightPanelMode.value = 'generating'
  showRightPanel.value = true
  startProgressSimulation()

  try {
    const res = await optimizeAgentResume({
      resumeId: defaultResumeId.value,
      jobId: targetJob.id,
    })

    finishProgress()
    await new Promise(resolve => setTimeout(resolve, 1000))

    const apiData = res?.data || res
    if (apiData) {
      const resumeResult = mapOptimizeResumeToTemplate(apiData)
      applyResumeData.value = resumeResult
      applyResumeName.value = resumeResult.name || '岗位专属简历'

      extraData.resumeInfo = apiData
      extraData.step = 2
      applyMsg.extra = JSON.stringify(extraData)

      rightPanelMode.value = 'resume'
    }
  } catch (e) {
    console.error('[Agent] 优化简历失败', e)
    ElMessage.error('简历优化失败，请重试')
    finishProgress()
    showRightPanel.value = false
    rightPanelMode.value = 'recommend'
    isApplying.value = false
  }
}

/** 发送聊天消息 */
async function handleSendMessage() {
  const text = chatInput.value.trim()
  if (!text || isSending.value) return

  /* 1. 先把用户消息追加到 chatMessages */
  const now = Math.floor(Date.now() / 1000)
  const userMsg: AgentChatMessage = {
    id: Date.now(),
    type: 'user',
    content: text,
    extra: '',
    createTime: { seconds: now, nanos: 0 },
  }
  chatMessages.value.push(userMsg)
  chatInput.value = ''

  /* 滚动到底部 */
  await nextTick()
  scrollChatToBottom()

  /* 2. 同步持久化用户消息到后端 */
  try {
    await addAgentChatMessage({ type: 'user', content: text })
  } catch {
    console.error('[Agent] 保存用户消息失败')
  }

  /* 3. 组装参数调 AI 对话接口 */
  isSending.value = true

  /* 等待 loading 指示器渲染后滚动到底部 */
  await nextTick()
  scrollChatToBottom()

  try {
    const history = buildChatHistory()
    const res = await sendAgentChat({
      message: text,
      resumeId: defaultResumeId.value,
      history,
      jobCategories: getIntentionCategoryNames(),
      regions: getIntentionRegionNames(),
      industries: getIntentionIndustryNames(),
    })

    /* 处理 AI 回复 */
    if (res.code === 0 && res.data?.message) {
      const aiContent = res.data.message
      const tool = res.data.tool
      const toolParams = res.data.toolParams

      if (tool === 'recommend') {
        /* AI 要求推荐岗位 — 先插入 AI 的过渡消息 */
        const aiNow = Math.floor(Date.now() / 1000)
        chatMessages.value.push({
          id: Date.now() + 1,
          type: 'assistant',
          content: aiContent,
          extra: '',
          createTime: { seconds: aiNow, nanos: 0 },
        })
        try {
          await addAgentChatMessage({ type: 'assistant', content: aiContent })
        } catch { /* 静默 */ }

        await nextTick()
        scrollChatToBottom()

        /* 调用岗位推荐接口 */
        const preference = toolParams?.preference || ''
        const excludeJobIds = collectExcludeJobIds()
        try {
          const recRes = await fetchAgentRecommend({ preference, excludeJobIds })
          if (recRes.code === '0' && recRes.data ) {
            const summary = recRes.data.summary || ''
            const jobList = recRes.data.list
            const extraJson = JSON.stringify({ summary, list: jobList })
            // const contentV = recRes.data.list?.length==0?'':''
            /* 持久化 recommend 消息 */
            try {
              await addAgentChatMessage({ type: 'recommend', content: '', extra: extraJson })
            } catch { /* 静默 */ }

            /* 追加到本地对话消息列表 */
            const recNow = Math.floor(Date.now() / 1000)
            chatMessages.value.push({
              id: Date.now() + 2,
              type: 'recommend',
              content: '',
              extra: extraJson,
              createTime: { seconds: recNow, nanos: 0 },
            })

          //   await nextTick()
          //   scrollChatToBottom()
          // } else {
          //   /* 推荐列表为空 — 插入提示消息 */
          //   const emptyNow = Math.floor(Date.now() / 1000)
          //   chatMessages.value.push({
          //     id: Date.now() + 2,
          //     type: 'assistant',
          //     content: '暂无相关职位推荐',
          //     extra: '',
          //     createTime: { seconds: emptyNow, nanos: 0 },
          //   })
          //   try {
          //     await addAgentChatMessage({ type: 'assistant', content: '暂无相关职位推荐' })
          //   } catch { /* 静默 */ }
            await nextTick()
            scrollChatToBottom()
          }
        } catch {
          console.error('[Agent] 推荐岗位请求失败')
        }
      } else {
        /* 普通 AI 回复 — 直接插入 assistant 消息 */
        const aiNow = Math.floor(Date.now() / 1000)
        chatMessages.value.push({
          id: Date.now() + 1,
          type: 'assistant',
          content: aiContent,
          extra: '',
          createTime: { seconds: aiNow, nanos: 0 },
        })

        try {
          await addAgentChatMessage({ type: 'assistant', content: aiContent })
        } catch {
          console.error('[Agent] 保存 AI 回复消息失败')
        }

        await nextTick()
        scrollChatToBottom()
      }
    }
  } catch (err) {
    console.error('[Agent] AI 对话请求失败', err)
    ElMessage.error('消息发送失败，请重试')
  } finally {
    isSending.value = false
  }
}
</script>

<style scoped lang="scss">
@use '../assets/styles/pages/agent';
</style>
