// 薪资 / 工资条（/hr/payroll/*、/hr/ess/*）—— 移动端员工自助查询
//
// 已接入接口：
//   我的工资条列表  GET  /hr/ess/payslips
//     员工自助（EssSelfServiceDetailController），无入参，返回当前登录员工已发布的工资条，
//     列表刻意不返回金额与银行卡（金额在列表里恒为 null），点击进详情再取。
//   查询本人工资条  GET  /hr/payroll/payslips/{payslipId}/mine
//     后端以当前登录用户与工资条归属比对，不接收 userId；
//     未发布、他人或已关闭工资条一律拒绝。
//   确认本人工资条  POST /hr/payroll/payslips/{payslipId}/confirm   无 body
//     确认后记录确认时间与员工主键；已确认或申诉处理中的版本不可重复确认（后端校验）。
//   提交工资条申诉  POST /hr/payroll/payslips/{payslipId}/appeal
//     body = { appealType, appealReason, attachmentJson? }（契约与 PC 端 payslipAction.js 一致）
import { get, postJ } from "@/utils/request";
import { formatDate } from "@/utils/hr/format";
import Vue from "vue";

// 工资条状态字典（后端英文枚举 → 中文展示；枚举口径与 PC 端 salarySlip.js 对齐）
// 未命中的值原样透出，避免静默吞掉后端新增状态
export const PAYSLIP_STATUS_LABEL = {
  PUBLISHED: "已发布",
  VIEWED: "已查看",
  CONFIRMED: "已确认",
  APPEALED: "已申诉",
  CORRECTED: "已更正",
  CLOSED: "已关闭",
  // 兼容旧口径
  DRAFT: "未发布",
  UNPUBLISHED: "未发布",
  RELEASED: "已发布",
  ISSUED: "已发布",
};

// 申诉类型（后端枚举：AMOUNT / ATTENDANCE / TAX / SOCIAL）
export const APPEAL_TYPE_OPTIONS = [
  { value: "AMOUNT", label: "金额差异", desc: "应发、扣款、实发金额与预期不符" },
  { value: "ATTENDANCE", label: "考勤相关", desc: "缺勤、加班、请假等天数或时长有出入" },
  { value: "TAX", label: "个税相关", desc: "个税计算或专项附加扣除有疑问" },
  { value: "SOCIAL", label: "社保公积金", desc: "缴费基数、比例或金额有疑问" },
];

export const APPEAL_TYPE_LABEL = APPEAL_TYPE_OPTIONS.reduce(
  (acc, item) => Object.assign(acc, { [item.value]: item.label }),
  {}
);

// 薪资项目方向（itemDetails.itemType）
export const ITEM_TYPE_LABEL = {
  EARNING: "收入项",
  DEDUCTION: "扣除项",
  WITHHOLDING: "代扣项",
  EMPLOYER_COST: "企业成本",
  STAT: "统计项",
};

// 明细展示顺序
const ITEM_TYPE_ORDER = ["EARNING", "DEDUCTION", "WITHHOLDING", "STAT", "EMPLOYER_COST"];

export function translatePayslipStatus(status) {
  if (!status) return "";
  return PAYSLIP_STATUS_LABEL[status] || String(status);
}

export function translateItemType(type) {
  if (!type) return "其他";
  return ITEM_TYPE_LABEL[type] || String(type);
}

/**
 * 金额是否对当前登录人可见。
 * 后端说明：金额字段仅在「具备金额查看权限且通过法人范围校验」时返回明文，
 * 无权限时字段直接缺席，所以用 undefined / null 判断，而不是判断是否为 0。
 */
export function hasAmount(value) {
  return value !== undefined && value !== null && value !== "";
}

/** 金额格式化：1234.5 → "¥1,234.50"；不可见时返回空串，由调用方决定占位文案 */
export function formatAmount(value) {
  if (!hasAmount(value)) return "";
  const num = Number(value);
  if (isNaN(num)) return String(value);
  const [int, dec] = Math.abs(num).toFixed(2).split(".");
  const withSep = int.replace(/\B(?=(\d{3})+(?!\d))/g, ",");
  return `${num < 0 ? "-" : ""}¥${withSep}.${dec}`;
}

/** 核算月份展示：2026-07 / 202607 → "2026年7月" */
export function formatPayrollMonth(month) {
  if (!month) return "";
  const text = String(month).trim();
  const compact = text.match(/^(\d{4})(\d{2})$/);
  if (compact) return `${compact[1]}年${Number(compact[2])}月`;
  const dashed = text.match(/^(\d{4})[-/.](\d{1,2})/);
  if (dashed) return `${dashed[1]}年${Number(dashed[2])}月`;
  return text;
}

function buildAmountRow(key, label, value) {
  return { key, label, visible: hasAmount(value), value: formatAmount(value) };
}

/** 单条薪资项目明细 */
export function adaptPayslipItem(item = {}) {
  const amount = formatAmount(item.finalAmount);
  return {
    id: item.id,
    itemId: item.itemId,
    itemCode: item.itemCode || "",
    name: item.itemName || item.itemCode || "未命名项目",
    type: item.itemType || "",
    typeLabel: translateItemType(item.itemType),
    amountVisible: hasAmount(item.finalAmount),
    amount,
    // 计算轨迹仅员工本人或具备敏感权限时返回
    trace: item.calculationTrace || "",
  };
}

/**
 * 把 /hr/payroll/payslips/{id}/mine 的响应适配成页面视图模型。
 * 注意：employerCost（企业用工成本）按文档约定默认不在员工工资条展示，这里不透出。
 */
export function adaptMyPayslip(raw = {}) {
  const result = raw.payrollResult || {};
  const items = (Array.isArray(result.itemDetails) ? result.itemDetails : []).map(adaptPayslipItem);

  const groups = ITEM_TYPE_ORDER.map((type) => ({
    type,
    label: translateItemType(type),
    items: items.filter((item) => item.type === type),
  })).filter((group) => group.items.length > 0);

  // 兜底：后端返回了未收录的 itemType 时，单独归到「其他」
  const knownTypes = ITEM_TYPE_ORDER.join("|");
  const others = items.filter((item) => !item.type || !new RegExp(`^(${knownTypes})$`).test(item.type));
  if (others.length) groups.push({ type: "", label: "其他", items: others });

  const netAmountVisible = hasAmount(result.netAmount);

  return {
    id: raw.id,
    month: raw.payrollMonth || "",
    monthLabel: formatPayrollMonth(raw.payrollMonth) || "—",
    status: raw.payslipStatus || "",
    statusLabel: translatePayslipStatus(raw.payslipStatus) || "",
    employeeName: result.employeeName || "",
    // 金额字段策略：具备权限并通过组织范围校验时为 VISIBLE
    fieldPolicy: result.fieldPolicy || "",
    amountVisible: netAmountVisible || hasAmount(result.grossAmount) || hasAmount(result.deductionAmount),
    netAmountVisible,
    summary: [
      buildAmountRow("grossAmount", "应发工资", result.grossAmount),
      buildAmountRow("deductionAmount", "扣款合计", result.deductionAmount),
      buildAmountRow("netAmount", "实发工资", result.netAmount),
    ],
    breakdown: [
      buildAmountRow("basicAmount", "基本工资", result.basicAmount),
      buildAmountRow("positionAmount", "岗位工资", result.positionAmount),
      buildAmountRow("performanceAmount", "绩效工资", result.performanceAmount),
      buildAmountRow("allowanceAmount", "津贴补贴", result.allowanceAmount),
      buildAmountRow("bonusAmount", "奖金", result.bonusAmount),
    ],
    groups,
    itemCount: items.length,
  };
}

/**
 * 查询本人工资条
 * GET /hr/payroll/payslips/{payslipId}/mine
 *
 * @param {number|string} payslipId 工资条主键
 * @param {boolean} loding 是否显示全局 loading
 * @returns {Promise<object>} adaptMyPayslip 适配后的视图模型
 */
export async function getMyPayslipDetail(payslipId, loding = true) {
  if (payslipId === undefined || payslipId === null || payslipId === "") {
    return Promise.reject(new Error("缺少工资条 id"));
  }
  const res = await get(
    Vue.prototype.apiUrl + `/hr/payroll/payslips/${payslipId}/mine`,
    {},
    loding
  );
  if (res && res.code == 0) return adaptMyPayslip(res.data || {});
  return Promise.reject(new Error((res && res.message) || "工资条查询失败"));
}

/**
 * 列表卡片用的轻量视图模型。
 * 兼容两种来源：/hr/ess/payslips（payslipId + publishTime，无金额）
 * 以及 /hr/payroll/payslips/{id}/mine（id + 金额）。
 */
export function adaptPayslipBrief(raw = {}) {
  const month = raw.payrollMonth || raw.month || "";
  const status = raw.payslipStatus || raw.status || "";
  const net = raw.netAmount !== undefined ? raw.netAmount : (raw.payrollResult || {}).netAmount;
  const publishTime = raw.publishTime || raw.issuedAt || raw.payrollDate || "";
  return {
    id: raw.id !== undefined && raw.id !== null ? raw.id : raw.payslipId,
    month,
    monthLabel: formatPayrollMonth(month) || "—",
    status,
    statusLabel: translatePayslipStatus(status),
    issuedAt: publishTime ? formatDate(publishTime) : "",
    amountVisible: hasAmount(net),
    amount: formatAmount(net),
  };
}

/**
 * 我的工资条列表
 * GET /hr/ess/payslips
 *
 * 后端说明：只返回当前登录员工「已发布」的工资条，且列表刻意不带金额与银行卡，
 * 金额需进详情（getMyPayslipDetail）单独获取。
 * @returns {Promise<Array>} 原始数组，调用方可用 adaptPayslipBrief 适配
 */
export async function getMyPayslipList(loding = true) {
  const res = await get(Vue.prototype.apiUrl + "/hr/ess/payslips", {}, loding);
  if (res && res.code == 0) return Array.isArray(res.data) ? res.data : [];
  return Promise.reject(new Error((res && res.message) || "工资条列表查询失败"));
}

/**
 * 归一化工资条状态：统一大写；后端若直接回中文则原样保留，供下面的判定兜底。
 */
export function normalizePayslipStatus(status) {
  const text = String(status == null ? "" : status).trim();
  return /[\u4e00-\u9fa5]/.test(text) ? text : text.toUpperCase();
}

/**
 * 根据工资条状态决定「确认 / 申诉」两个动作是否可用。
 *
 * 后端规则：确认后记录确认时间与员工主键，**已确认或申诉处理中版本不可重复确认**；
 * 因此 CONFIRMED 只能看、APPEALED（申诉处理中）不能再确认、CLOSED 不再有任何动作。
 * 状态值未识别时按可操作处理，交给后端做最终校验，避免前端误拦。
 */
export function resolvePayslipActions(status) {
  const value = normalizePayslipStatus(status);
  const confirmed = value === "CONFIRMED" || value.indexOf("已确认") >= 0;
  const appealed = value === "APPEALED" || value.indexOf("已申诉") >= 0;
  const corrected = value === "CORRECTED" || value.indexOf("已更正") >= 0;
  const closed = value === "CLOSED" || value.indexOf("已关闭") >= 0;

  if (confirmed) {
    return { canConfirm: false, canAppeal: false, hint: "本期工资条已确认" };
  }
  if (appealed) {
    return { canConfirm: false, canAppeal: false, hint: "申诉处理中，暂不能确认" };
  }
  if (corrected) {
    return { canConfirm: false, canAppeal: false, hint: "本期已形成更正版本，无需再次确认" };
  }
  if (closed) {
    return { canConfirm: false, canAppeal: false, hint: "本期工资条已关闭" };
  }
  return { canConfirm: true, canAppeal: true, hint: "" };
}

/**
 * 确认本人工资条
 * POST /hr/payroll/payslips/{payslipId}/confirm   （无 body）
 *
 * 后端以当前登录用户校验工资条归属；重复确认 / 申诉处理中会被后端拒绝，
 * 拒绝信息通过 reject 的 message 回传，页面直接展示即可。
 */
export async function confirmMyPayslip(payslipId, loding = true) {
  if (payslipId === undefined || payslipId === null || payslipId === "") {
    return Promise.reject(new Error("缺少工资条 id"));
  }
  const res = await postJ(
    Vue.prototype.apiUrl + `/hr/payroll/payslips/${payslipId}/confirm`,
    {},
    loding
  );
  if (res && res.code == 0) return true;
  return Promise.reject(new Error((res && res.message) || "工资条确认失败"));
}

/**
 * 提交工资条申诉
 * POST /hr/payroll/payslips/{payslipId}/appeal
 *
 * 契约与 PC 端 src/api/salary/payslipAction.js 的 submitPayslipAppeal 一致：
 *   body = { appealType, appealReason, attachmentJson? }
 *   appealType ∈ AMOUNT | ATTENDANCE | TAX | SOCIAL
 *   attachmentJson = 上传后返回的附件 id，多个用英文逗号拼接（无附件不传）
 */
export function buildAppealPayload({ appealType, appealReason, attachmentIds, attachmentJson } = {}) {
  const payload = {
    appealType: appealType ? String(appealType).trim() : undefined,
    appealReason: appealReason ? String(appealReason).trim() : undefined,
  };
  // 兼容两种入参：直接给拼接串，或给附件 id 数组由这里拼接
  const json =
    attachmentJson ||
    (Array.isArray(attachmentIds) && attachmentIds.length ? attachmentIds.join(",") : "");
  if (json) payload.attachmentJson = json;
  return payload;
}

export async function submitPayslipAppeal(payslipId, form = {}, loding = true) {
  if (payslipId === undefined || payslipId === null || payslipId === "") {
    return Promise.reject(new Error("缺少工资条 id"));
  }
  const payload = buildAppealPayload(form);
  if (!payload.appealType) return Promise.reject(new Error("请选择申诉类型"));
  if (!payload.appealReason) return Promise.reject(new Error("请填写申诉说明"));

  const res = await postJ(
    Vue.prototype.apiUrl + `/hr/payroll/payslips/${payslipId}/appeal`,
    payload,
    loding
  );
  if (res && res.code == 0) return true;
  return Promise.reject(new Error((res && res.message) || "工资条申诉提交失败"));
}