const common = require("../../common");
const dayjs = require("dayjs");
const caApi = require("./ca-api");
const { getConfig } = require("../utils/config");
let db = "";

const caState = {};

module.exports = async (item, mongodb) => {
  db = mongodb;
  switch (item.type) {
    case "caAuth":
      return await caAuth(item);
    case "getSealImage":
      return await getSealImage(item);
    case "getCaUserInfo":
      return await getCaUserInfo(item);
    case "startAutoSign":
      return await startAutoSign(item);
    case "autoSign":
      return await autoSign(item);
    case "autoSignVerifyCA":
      return await autoSignVerifyCA(item);
    case "closeAutoSign":
      return await closeAutoSign(item);
  }
};
// ca授权, 获取授权码 NORMAL-正常， LOCKED-冻结， DELETION-已删除
async function caAuth(item) {
  const { uniqueId } = item;
  // 查询用户信息
  const { success, data, message } = await caApi.getUserInfo({ uniqueId });
  if (!success) {
    return {
      success: false,
      message: message,
    };
  }
  const { status, userId } = data;
  if (status === "NORMAL") {
    // 获取授权码
    const { success, data, message } = await caApi.getAuthCode({
      userId,
    });
    if (!success) {
      return {
        success: false,
        message: message,
      };
    }
    return {
      success: true,
      data: data.authCode,
    };
  }
  return {
    success: false,
    message: "用户状态异常",
  };
}

async function getCaUserInfo({ uniqueId }) {
  const { success, data, message } = await caApi.getUserInfo({ uniqueId });
  if (!success) {
    return {
      success: false,
      message: message,
    };
  }
  if (!success) {
    return {
      success: false,
      message: message,
    };
  }
  const { status, userId } = data;
  if (status === "NORMAL") {
    return {
      success: true,
      data: {
        status,
        userId,
      },
    };
  }
  return {
    success: false,
    message: "用户状态异常",
  };
}

// 查询印章图片
async function getSealImage({ uniqueId }) {
  const res = await caApi.getUserInfo({ uniqueId });
  if (!res.success) {
    return {
      success: false,
      message: res.message,
    };
  }
  const { userId } = res.data;
  const { success, data, message } = await caApi.queryImage({ userId });
  if (!success) {
    return {
      success: false,
      message: message,
    };
  }
  return {
    success: true,
    data: data.image,
  };
}
// 开启时效签
async function startAutoSign({ userId, corpId }) {
  const { caTimeRegion } = await getConfig(corpId);
  const { success, data, message } = await caApi.startAutoSign({
    userId,
    timeRegion: caTimeRegion,
  });
  if (!success) {
    return {
      success: false,
      message: message,
    };
  }
  return {
    success: true,
    data: data,
    caTimeRegion,
  };
}
// 自动签名
async function autoSign({ userId, oriData }) {
  // data 为base64编码过的数据
  const base64Data = Buffer.from(oriData).toString("base64");
  console.log("=========>base64Data", base64Data);
  const { success, data, message } = await caApi.autoSign({
    userId,
    data: base64Data,
  });
  // 如果自动签时效, 采用手动签名
  if (!success) {
    return {
      success: false,
      message: message,
    };
  }
  console.log("签名成功饭后", data);
  const { signCert, signResult } = data;
  // 产生时间戳
  const tsResult = await caApi.createAndGetTssInfo({
    oriData,
    attachCert: true,
  });
  if (!tsResult.success) {
    return {
      success: false,
      message: tsResult.message,
    };
  }
  console.log("产生时间戳", tsResult);

  const { tsResp } = tsResult.data;
  // 验证签名结果 和 时间戳
  const verifyResult = await verifySignAndTS({
    userId,
    oriData,
    signResult,
    tsResp,
    signCert,
    base64Data,
  });
  if (!verifyResult.success) {
    return {
      success: false,
      message: verifyResult.message,
    };
  }
  console.log("验证签名结果 和 时间戳", verifyResult);
  // 保存签名结果到本地数据库
  await saveSignResult({
    oriData,
    tsResp,
    signCert,
    signResult,
    userId,
  });
  return {
    success: true,
    data: data,
  };
}
// 验证签名结果 和 时间戳 verifyTS 和 verifySign 使用 promse.all
async function verifySignAndTS({
  userId,
  oriData,
  signResult,
  tsResp,
  signCert,
  base64Data,
}) {
  console.log("===========>验证签名结果 和 时间戳", {
    userId,
    oriData,
    signResult,
    tsResp,
    signCert,
    base64Data,
  });
  const [verifyTSResult, verifySignResult] = await Promise.all([
    caApi.verifyTS({ userId, oriData, tsResp }),
    caApi.verifySign({
      plain: base64Data,
      signValue: signResult,
      cert: signCert,
    }),
  ]);
  if (!verifyTSResult.success) {
    return {
      success: false,
      message: verifyTSResult.message,
    };
  }
  if (!verifySignResult.success) {
    return {
      success: false,
      message: verifySignResult.message,
    };
  }
  return {
    success: true,
    data: {
      tsData: verifyTSResult.data,
      signData: verifySignResult.data,
    },
  };
}

/**
 * 保存签名结果到本地数据库
 * @param {Object} param
 * @param {String} param.oriData 原始数据
 * @param {String} param.tsResp  签名时间戳
 * @param {String} param.signCert 签名证书
 * @param {String} param.signResult 签名数据
 * @param {String} param.userId 用户ID
 * @returns
 */
async function saveSignResult({
  oriData,
  tsResp,
  signCert,
  signResult,
  userId,
}) {
  const result = await db.collection("ca-sign").insertOne({
    userId,
    oriData,
    tsResp,
    signCert,
    signResult,
    createTime: dayjs().format("YYYY-MM-DD HH:mm:ss"),
  });
  console.log("保存签名结果到本地数据库", result);
  return result;
}

// 验证CA时效 通过 queryAutoSignRegion 接口
async function autoSignVerifyCA(item) {
  const { code } = item;
  const state = useCaState(code);
  if (state) {
    return {
      success: true,
      message: `时效签已开启,有效期至: ${state.endTime}`,
      userId: state.userId,
    };
  }
  const uerInfo = await caApi.getUserInfo({ uniqueId: code });
  if (!uerInfo.success) {
    return {
      success: false,
      message: uerInfo.message,
    };
  }
  const { status, userId } = uerInfo.data;
  if (status != "NORMAL") {
    return {
      success: false,
      message: "用户状态异常",
    };
  }
  const { success, data } = await caApi.queryAutoSignRegion({
    userId,
  });
  if (success && data.autoSignStatus === "STARTED") {
    const state = {
      userId,
      endTime: data.endTime
    }
    keepCaState(code, state);
    return {
      success: true,
      message: "时效签已开启",
      userId,
    };
  }
  removeCaState(code);
  return {
    success: false,
    message: "时效签未开启",
    userId,
  };
}

async function closeAutoSign({ uniqueId }) {
  const uerInfo = await caApi.getUserInfo({ uniqueId });
  if (!uerInfo.success) {
    return {
      success: false,
      message: uerInfo.message,
    };
  }
  const { status, userId } = uerInfo.data;
  if (status != "NORMAL") {
    return {
      success: false,
      message: "用户状态异常",
    };
  }
  const { success, message } = await caApi.closeAutoSign({
    userId,
  });
  if (!success) {
    return {
      success: false,
      message: message,
    };
  }
  return {
    success: true,
    message: "关闭成功",
  };
}


function keepCaState(uniqueId, { userId, endTime }) {
  if (typeof userId === 'string' && userId.trim() && endTime && dayjs(endTime).isValid()) {
    // ca当天有效, 如果有效期超过当天, 则将有效期设置为当天
    const newEndTime = dayjs(endTime).isAfter(dayjs().endOf('day')) ? dayjs().endOf('day').format('YYYY-MM-DD HH:mm') : endTime;
    caState[uniqueId] = { userId, endTime: newEndTime };
  }
}

function removeCaState(uniqueId) {
  caState[uniqueId] = undefined;

}

function useCaState(uniqueId) {
  const info = caState[uniqueId];
  if (!info) return null;
  const { userId, endTime } = info;
  if (endTime && dayjs().isBefore(dayjs(endTime))) {
    return { userId, endTime }
  }
  return null
}