/**
 * 成交指标展示：后端有样本就展示（含真实 0%），无样本不造假。
 * - 成交率/罚款率：有 rate / rate_text 即展示
 * - 均时：有 avg_deal_hours_text 才展示
 */

function parseRate(textOrNum) {
  if (textOrNum == null || textOrNum === '') return null;
  if (typeof textOrNum === 'number') {
    return Number.isFinite(textOrNum) ? textOrNum : null;
  }
  const s = String(textOrNum).trim().replace(/%/g, '');
  const n = Number(s);
  return Number.isFinite(n) ? n : null;
}

function formatRateText(rate, fallbackText) {
  if (fallbackText) return fallbackText;
  const pct = parseRate(rate);
  if (pct == null) return '';
  const asPercent = pct > 1 ? pct : pct * 100;
  return `${asPercent.toFixed(1)}%`;
}

function hasRateValue(rate, text) {
  if (text != null && String(text).trim() !== '') return true;
  return rate != null && rate !== '';
}

/**
 * 把接口 data 收成列表顶栏可用结构；全无可展示则返回 null
 */
export function sanitizeMyDealStat(raw, role = 'merchant') {
  if (!raw || typeof raw !== 'object') return null;
  const out = { role: raw.role || role };
  const chips = [];

  const dealRate = raw.deal_rate != null ? raw.deal_rate : raw.deal_rate_text;
  if (hasRateValue(raw.deal_rate, raw.deal_rate_text)) {
    const pct = parseRate(dealRate);
    out.deal_rate = pct == null ? 0 : (pct > 1 ? pct / 100 : pct);
    out.deal_rate_text = formatRateText(dealRate, raw.deal_rate_text);
    out.deal_label = '成交率';
    chips.push({ k: 'deal', t: `成交率 ${out.deal_rate_text}` });
  }

  const fineKey = role === 'dashou' ? 'fined_rate' : 'fine_rate';
  const fineTextKey = role === 'dashou' ? 'fined_rate_text' : 'fine_rate_text';
  const fineRate = raw[fineKey] != null
    ? raw[fineKey]
    : (raw[fineTextKey] || raw.fine_rate_text || raw.fined_rate_text);
  const fineText = raw[fineTextKey] || raw.fine_rate_text || raw.fined_rate_text;
  if (hasRateValue(raw[fineKey] != null ? raw[fineKey] : raw.fine_rate, fineText)) {
    const finePct = parseRate(fineRate);
    out[fineKey] = finePct == null ? 0 : (finePct > 1 ? finePct / 100 : finePct);
    out[fineTextKey] = formatRateText(fineRate, fineText);
    out.fine_label = role === 'dashou' ? '被罚款率' : '罚款率';
    chips.push({
      k: 'fine',
      t: `${out.fine_label} ${out[fineTextKey]}`,
    });
  }

  if (raw.avg_deal_hours_text) {
    out.avg_deal_hours_text = raw.avg_deal_hours_text;
    out.avg_deal_hours = raw.avg_deal_hours;
    chips.push({ k: 'avg', t: `均时 ${raw.avg_deal_hours_text}`, hl: true });
  }

  if (!chips.length) return null;
  out.chips = chips;
  out.order_count = raw.order_count;
  out.completed_count = raw.completed_count;
  return out;
}

/**
 * 抢单池/组队卡片芯片：后端给了哪个字段就展示哪个（含 0%）
 */
export function buildDealStatChips(stat, opts = {}) {
  if (!stat || typeof stat !== 'object') return [];
  const dealLabel = opts.dealLabel || '成交率';
  const fineLabel = opts.fineLabel || '罚款率';
  const chips = [];

  if (hasRateValue(stat.deal_rate, stat.deal_rate_text)) {
    const text = formatRateText(
      stat.deal_rate != null ? stat.deal_rate : stat.deal_rate_text,
      stat.deal_rate_text,
    );
    chips.push({ k: 'deal', t: `${dealLabel} ${text}` });
  }

  const fineRaw = stat.fine_rate != null
    ? stat.fine_rate
    : (stat.fined_rate != null ? stat.fined_rate : (stat.fine_rate_text || stat.fined_rate_text));
  const fineText = stat.fine_rate_text || stat.fined_rate_text;
  if (hasRateValue(stat.fine_rate != null ? stat.fine_rate : stat.fined_rate, fineText)) {
    chips.push({ k: 'fine', t: `${fineLabel} ${formatRateText(fineRaw, fineText)}` });
  }

  if (stat.avg_deal_hours_text) {
    chips.push({ k: 'avg', t: `均时 ${stat.avg_deal_hours_text}`, hl: true });
  }
  return chips;
}

export const DEAL_STAT_HELP = {
  merchant: '成交率=已结算÷有效单量；罚款率=已缴纳罚单÷有效单量；均时=平均结算耗时。有样本即展示（含 0%）。',
  dashou: '成交率=已结算÷接单量；被罚款率=已缴纳罚单÷接单量。有样本即展示（含 0%）。',
};