import dayjs from 'dayjs';

const DB_KEY = 'ykt_case_archive_detail_mockdb_v1';

export const VISIT_RECORD_TEMPLATES = [
  {
    templateType: 'outpatient',
    templateName: '门诊记录',
    templateList: [
      { title: 'visitTime', name: '就诊日期', type: 'date', required: true, format: 'YYYY-MM-DD' },
      { title: 'corpName', name: '就诊机构', type: 'input', required: false, wordLimit: 30, inputType: 'text' },
      { title: 'deptName', name: '科室', type: 'input', required: false, wordLimit: 30, inputType: 'text' },
      { title: 'doctor', name: '医生', type: 'input', required: false, wordLimit: 30, inputType: 'text' },
      { title: 'diagnosisName', name: '诊断', type: 'textarea', required: false, wordLimit: 200 },
      { title: 'summary', name: '摘要', type: 'textarea', required: false, wordLimit: 200 },
    ],
  },
  {
    templateType: 'inhospital',
    templateName: '住院记录',
    templateList: [
      { title: 'inhospitalDate', name: '入院日期', type: 'date', required: true, format: 'YYYY-MM-DD' },
      { title: 'corpName', name: '住院机构', type: 'input', required: false, wordLimit: 30, inputType: 'text' },
      { title: 'diagnosisName', name: '诊断', type: 'textarea', required: false, wordLimit: 200 },
      { title: 'summary', name: '摘要', type: 'textarea', required: false, wordLimit: 200 },
    ],
  },
  {
    templateType: 'physicalExaminationTemplate',
    templateName: '体检记录',
    templateList: [
      { title: 'inspectDate', name: '体检日期', type: 'date', required: true, format: 'YYYY-MM-DD' },
      { title: 'corpName', name: '体检机构', type: 'input', required: false, wordLimit: 30, inputType: 'text' },
      { title: 'inspectPakageName', name: '体检套餐', type: 'input', required: false, wordLimit: 50, inputType: 'text' },
      { title: 'positiveFind', name: '阳性发现', type: 'textarea', required: false, wordLimit: 300 },
      { title: 'summary', name: '摘要', type: 'textarea', required: false, wordLimit: 200 },
    ],
  },
];

export function getVisitRecordTemplates() {
  return VISIT_RECORD_TEMPLATES.map((i) => ({ templateType: i.templateType, name: i.templateName, templateList: i.templateList }));
}

export function getVisitRecordTemplate(templateType) {
  return VISIT_RECORD_TEMPLATES.find((i) => i.templateType === templateType) || null;
}

function safeParse(json) {
  try {
    return JSON.parse(json);
  } catch {
    return null;
  }
}

function getDb() {
  const raw = uni.getStorageSync(DB_KEY);
  const db = raw && typeof raw === 'string' ? safeParse(raw) : raw;
  const next = db && typeof db === 'object' ? db : {};
  next.visitRecordsByArchiveId = next.visitRecordsByArchiveId || {};
  next.serviceRecordsByArchiveId = next.serviceRecordsByArchiveId || {};
  next.followupsByArchiveId = next.followupsByArchiveId || {};
  return next;
}

function setDb(db) {
  uni.setStorageSync(DB_KEY, JSON.stringify(db));
}

function uid(prefix) {
  return `${prefix}_${Date.now()}_${Math.random().toString(16).slice(2)}`;
}

export function ensureSeed(archiveId, archive) {
  if (!archiveId) return;
  const db = getDb();

  if (!Array.isArray(db.visitRecordsByArchiveId[archiveId]) || db.visitRecordsByArchiveId[archiveId].length === 0) {
    const now = Date.now();
    db.visitRecordsByArchiveId[archiveId] = [
      {
        _id: uid('mr'),
        medicalType: 'outpatient',
        tempName: '门诊记录',
        templateType: 'outpatient',
        sortTime: now - 1000 * 60 * 60 * 24 * 2,
        visitTime: dayjs(now - 1000 * 60 * 60 * 24 * 2).format('YYYY-MM-DD'),
        corpName: '某某医院',
        deptName: '口腔科',
        doctor: '李医生',
        diagnosisName: '牙列不齐（mock）',
        summary: '初诊：拍片、取模，制定治疗方案。',
        createTime: now - 1000 * 60 * 60 * 24 * 2,
        creatorName: '李医生',
      },
      {
        _id: uid('mr'),
        medicalType: 'inhospital',
        tempName: '住院记录',
        templateType: 'inhospital',
        sortTime: now - 1000 * 60 * 60 * 24 * 15,
        inhospitalDate: dayjs(now - 1000 * 60 * 60 * 24 * 15).format('YYYY-MM-DD'),
        corpName: '某某医院',
        diagnosisName: '术后复查（mock）',
        summary: '复诊：术后复查，恢复良好。',
        createTime: now - 1000 * 60 * 60 * 24 * 15,
        creatorName: '王护士',
      },
    ];
  }

  if (!Array.isArray(db.serviceRecordsByArchiveId[archiveId]) || db.serviceRecordsByArchiveId[archiveId].length === 0) {
    const now = Date.now();
    db.serviceRecordsByArchiveId[archiveId] = Array.from({ length: 18 }).map((_, idx) => {
      const eventType =
        idx % 5 === 0 ? 'questionnaire' : idx % 4 === 0 ? 'article' : idx % 3 === 0 ? 'sms' : 'phone';
      const executionTime = now - 1000 * 60 * 60 * (idx * 6 + 3);
      const executeTeamId = idx % 2 === 0 ? 'team_1' : 'team_2';
      const executeTeamName = executeTeamId === 'team_1' ? '口腔一科（示例）' : '正畸团队（示例）';
      return {
        _id: uid('sr'),
        eventType,
        taskContent: `服务内容示例 #${idx + 1}：这里是任务描述，支持长文本展开收起。`,
        result: idx % 7 === 0 ? '已联系患者，已确认到院时间。' : '',
        executorName: idx % 2 === 0 ? '李医生' : '王护士',
        executeTeamId,
        executeTeamName,
        executionTime,
        pannedEventSendFile:
          eventType === 'article'
            ? { type: 'article', url: 'https://example.com/article/1' }
            : eventType === 'questionnaire'
              ? { type: 'questionnaire', surveryId: 'q_1' }
              : null,
        archiveName: archive?.name || '',
      };
    });
  }

  if (!Array.isArray(db.followupsByArchiveId[archiveId]) || db.followupsByArchiveId[archiveId].length === 0) {
    const now = Date.now();
    db.followupsByArchiveId[archiveId] = Array.from({ length: 22 }).map((_, idx) => {
      const plannedExecutionTime = now + 1000 * 60 * 60 * 24 * ((idx % 9) - 2);
      const createTime = now - 1000 * 60 * 60 * (idx * 5 + 2);
      const statusPool = ['processing', 'notStart', 'treated', 'cancelled', 'expired'];
      const status = statusPool[idx % statusPool.length];
      const eventTypePool = ['followup', 'revisit', 'questionnaire', 'other'];
      const eventType = eventTypePool[idx % eventTypePool.length];
      const executeTeamId = idx % 2 === 0 ? 'team_1' : 'team_2';
      const executeTeamName = executeTeamId === 'team_1' ? '口腔一科（示例）' : '正畸团队（示例）';
      return {
        _id: uid('td'),
        plannedExecutionTime,
        planDate: dayjs(plannedExecutionTime).format('YYYY-MM-DD'),
        createTime,
        createTimeStr: dayjs(createTime).format('YYYY-MM-DD HH:mm'),
        executorName: idx % 2 === 0 ? '李医生' : '王护士',
        executeTeamId,
        executeTeamName,
        creatorName: idx % 3 === 0 ? '系统' : '管理员A',
        status,
        eventType,
        eventTypeLabel:
          eventType === 'followup' ? '回访' : eventType === 'revisit' ? '复诊提醒' : eventType === 'questionnaire' ? '问卷' : '其他',
        eventStatusLabel:
          status === 'processing'
            ? '待处理'
            : status === 'notStart'
              ? '未开始'
              : status === 'treated'
                ? '已完成'
                : status === 'cancelled'
                  ? '已取消'
                  : '已过期',
        taskContent: `回访任务示例 #${idx + 1}：电话回访/提醒到院等。`,
        result: status === 'treated' ? '已完成回访，患者反馈良好。' : '',
        archiveName: archive?.name || '',
      };
    });
  }

  setDb(db);
}

export function queryVisitRecords({ archiveId, medicalType = 'ALL', date = '' }) {
  const db = getDb();
  const list = Array.isArray(db.visitRecordsByArchiveId[archiveId]) ? db.visitRecordsByArchiveId[archiveId] : [];

  const withDate = list.map((i) => ({
    ...i,
    dateStr: i.sortTime ? dayjs(i.sortTime).format('YYYY-MM-DD') : '',
  }));

  const matchType = medicalType === 'ALL' ? withDate : withDate.filter((i) => i.medicalType === medicalType);
  const matchDate = date ? matchType.filter((i) => i.dateStr === date) : matchType;
  return matchDate.sort((a, b) => (b.sortTime || 0) - (a.sortTime || 0));
}

export function getVisitRecord({ archiveId, id }) {
  const db = getDb();
  const list = Array.isArray(db.visitRecordsByArchiveId[archiveId]) ? db.visitRecordsByArchiveId[archiveId] : [];
  return list.find((i) => i._id === id) || null;
}

export function upsertVisitRecord({ archiveId, record }) {
  const db = getDb();
  const list = Array.isArray(db.visitRecordsByArchiveId[archiveId]) ? db.visitRecordsByArchiveId[archiveId] : [];
  const next = { ...record };
  if (!next._id) next._id = uid('mr');
  if (!next.sortTime) next.sortTime = Date.now();
  if (!next.createTime) next.createTime = Date.now();

  const idx = list.findIndex((i) => i._id === next._id);
  if (idx >= 0) list[idx] = { ...list[idx], ...next };
  else list.unshift(next);
  db.visitRecordsByArchiveId[archiveId] = list;
  setDb(db);
  return next;
}

export function removeVisitRecord({ archiveId, id }) {
  const db = getDb();
  const list = Array.isArray(db.visitRecordsByArchiveId[archiveId]) ? db.visitRecordsByArchiveId[archiveId] : [];
  db.visitRecordsByArchiveId[archiveId] = list.filter((i) => i._id !== id);
  setDb(db);
}

export function queryServiceRecords({ archiveId, page = 1, pageSize = 10, eventType = 'ALL', teamId = 'ALL', dateRange = [] }) {
  const db = getDb();
  const list = Array.isArray(db.serviceRecordsByArchiveId[archiveId]) ? db.serviceRecordsByArchiveId[archiveId] : [];

  let filtered = [...list];
  if (eventType !== 'ALL') filtered = filtered.filter((i) => i.eventType === eventType);
  if (teamId !== 'ALL') filtered = filtered.filter((i) => i.executeTeamId === teamId);

  if (Array.isArray(dateRange) && dateRange.length === 2 && dateRange[0] && dateRange[1]) {
    filtered = filtered.filter((i) => {
      const d = i.executionTime ? dayjs(i.executionTime).format('YYYY-MM-DD') : '';
      return d >= dateRange[0] && d <= dateRange[1];
    });
  }

  filtered.sort((a, b) => (b.executionTime || 0) - (a.executionTime || 0));
  const total = filtered.length;
  const pages = Math.ceil(total / pageSize) || 1;
  const start = (page - 1) * pageSize;
  const slice = filtered.slice(start, start + pageSize);
  return { list: slice, total, pages };
}

export function getServiceRecord({ archiveId, id }) {
  const db = getDb();
  const list = Array.isArray(db.serviceRecordsByArchiveId[archiveId]) ? db.serviceRecordsByArchiveId[archiveId] : [];
  return list.find((i) => i._id === id) || null;
}

export function upsertServiceRecord({ archiveId, record }) {
  const db = getDb();
  const list = Array.isArray(db.serviceRecordsByArchiveId[archiveId]) ? db.serviceRecordsByArchiveId[archiveId] : [];
  const next = { ...record };
  if (!next._id) next._id = uid('sr');
  if (!next.executionTime) next.executionTime = Date.now();

  const idx = list.findIndex((i) => i._id === next._id);
  if (idx >= 0) list[idx] = { ...list[idx], ...next };
  else list.unshift(next);
  db.serviceRecordsByArchiveId[archiveId] = list;
  setDb(db);
  return next;
}

export function removeServiceRecord({ archiveId, id }) {
  const db = getDb();
  const list = Array.isArray(db.serviceRecordsByArchiveId[archiveId]) ? db.serviceRecordsByArchiveId[archiveId] : [];
  db.serviceRecordsByArchiveId[archiveId] = list.filter((i) => i._id !== id);
  setDb(db);
}

export function queryFollowups({ archiveId, page = 1, pageSize = 10, status = 'all', isMy = false, eventTypes = [], teamId = 'ALL', planRange = ['', ''] }) {
  const db = getDb();
  const list = Array.isArray(db.followupsByArchiveId[archiveId]) ? db.followupsByArchiveId[archiveId] : [];

  let filtered = [...list];
  if (status !== 'all') filtered = filtered.filter((i) => i.status === status);
  if (isMy) filtered = filtered.filter((i) => i.executorName === '李医生');
  if (Array.isArray(eventTypes) && eventTypes.length) filtered = filtered.filter((i) => eventTypes.includes(i.eventType));
  if (teamId !== 'ALL') filtered = filtered.filter((i) => i.executeTeamId === teamId);
  if (planRange && (planRange[0] || planRange[1])) {
    if (planRange[0]) filtered = filtered.filter((i) => i.planDate >= planRange[0]);
    if (planRange[1]) filtered = filtered.filter((i) => i.planDate <= planRange[1]);
  }

  filtered.sort((a, b) => (b.plannedExecutionTime || 0) - (a.plannedExecutionTime || 0));

  const total = filtered.length;
  const pages = Math.ceil(total / pageSize) || 1;
  const start = (page - 1) * pageSize;
  const slice = filtered.slice(start, start + pageSize);
  return { list: slice, total, pages };
}

export function getFollowup({ archiveId, id }) {
  const db = getDb();
  const list = Array.isArray(db.followupsByArchiveId[archiveId]) ? db.followupsByArchiveId[archiveId] : [];
  return list.find((i) => i._id === id) || null;
}

export function upsertFollowup({ archiveId, followup }) {
  const db = getDb();
  const list = Array.isArray(db.followupsByArchiveId[archiveId]) ? db.followupsByArchiveId[archiveId] : [];
  const next = { ...followup };
  if (!next._id) next._id = uid('td');
  if (!next.plannedExecutionTime) next.plannedExecutionTime = Date.now();
  next.planDate = dayjs(next.plannedExecutionTime).format('YYYY-MM-DD');
  if (!next.createTime) next.createTime = Date.now();
  next.createTimeStr = dayjs(next.createTime).format('YYYY-MM-DD HH:mm');

  const idx = list.findIndex((i) => i._id === next._id);
  if (idx >= 0) list[idx] = { ...list[idx], ...next };
  else list.unshift(next);

  db.followupsByArchiveId[archiveId] = list;
  setDb(db);
  return next;
}

export function removeFollowup({ archiveId, id }) {
  const db = getDb();
  const list = Array.isArray(db.followupsByArchiveId[archiveId]) ? db.followupsByArchiveId[archiveId] : [];
  db.followupsByArchiveId[archiveId] = list.filter((i) => i._id !== id);
  setDb(db);
}