import { Prisma, PrismaClient } from '@prisma/client';
import * as fs from 'fs';

const prisma = new PrismaClient();
const DUMP = '/opt/import/prod/oa_flow_finance.json';
const APPLY = process.argv.includes('--apply');

type Row = Record<string, unknown>;
type Bid = {
  id: string;
  bidNo: string;
  name: string;
  externalNo: string | null;
  status: string;
  winnerName: string | null;
  winnerAmount: Prisma.Decimal | null;
  winnerNote: string | null;
};

function str(v: unknown) {
  if (v == null) return '';
  return String(v).trim();
}

function num(v: unknown) {
  if (v == null || v === '') return null;
  const n = Number(String(v).replace(/,/g, ''));
  if (!Number.isFinite(n) || n === 0) return null;
  return n;
}

function compactName(name: string) {
  return str(name)
    .replace(/\s+/g, '')
    .replace(/[（(].*?[）)]/g, '')
    .replace(/招标公告|采购公告|询价公告|竞争性谈判公告|谈判公告|比价公告|需求公示|意向公开/g, '');
}

function isOwnWinner(name: string) {
  return /风影|随行科技|山东鲁兵/.test(name) || name === '隆创';
}

function officialNo(raw: unknown) {
  const n = str(raw).replace(/[)）]+$/, '').trim();
  if (!n || n === '无' || n === '-' || n === '—') return '';
  return n;
}

function pickUnused(cands: Bid[], used: Set<string>) {
  const open = cands.filter((b) => !used.has(b.id));
  if (!open.length) return null;
  const yt = open.find((b) => b.bidNo.startsWith('YT-'));
  return yt || open[0];
}

async function main() {
  if (!fs.existsSync(DUMP)) {
    throw new Error(`找不到 OA 备份 ${DUMP}`);
  }
  const raw = JSON.parse(fs.readFileSync(DUMP, 'utf8')) as Record<string, Row[]>;
  const pres = raw.project_preinvest_apply || [];
  const sources = pres.filter((p) => {
    const deleted = str(p.deleted) === '1';
    const winner = str(p.winning_unit);
    const cat = str(p.screening_category) || str(p.project_type);
    return deleted && winner && cat.includes('软件');
  });

  const bids = await prisma.bidCase.findMany({
    where: { tenantId: '1', status: 'TERMINATED' },
    select: {
      id: true,
      bidNo: true,
      name: true,
      externalNo: true,
      status: true,
      winnerName: true,
      winnerAmount: true,
      winnerNote: true,
    },
  });

  const byNo = new Map<string, Bid[]>();
  const byName = new Map<string, Bid[]>();
  const byCompact = new Map<string, Bid[]>();
  const add = (map: Map<string, Bid[]>, key: string, row: Bid) => {
    if (!key) return;
    const list = map.get(key) || [];
    list.push(row);
    map.set(key, list);
  };
  for (const b of bids) {
    add(byNo, b.bidNo, b);
    add(byNo, str(b.externalNo), b);
    add(byName, b.name, b);
    add(byCompact, compactName(b.name), b);
  }

  const used = new Set<string>();
  const updated: { bidNo: string; name: string; winner: string; amount: number | null; via: string }[] = [];
  const skippedSame: string[] = [];
  const conflicts: { bidNo: string; have: string; want: string }[] = [];
  const unmatched: { applyNo: string; name: string; winner: string }[] = [];
  const ownSkipped: string[] = [];

  for (const p of sources) {
    const applyNo = str(p.apply_no);
    const name = str(p.project_name);
    const official = officialNo(p.project_number);
    const winner = str(p.winning_unit);
    const amount = num(p.winning_amount);
    if (isOwnWinner(winner)) {
      ownSkipped.push(`${applyNo} ${winner}`);
      continue;
    }

    const hit =
      pickUnused(byNo.get(applyNo) || [], used) ||
      pickUnused(byNo.get(official) || [], used) ||
      pickUnused(byName.get(name) || [], used) ||
      pickUnused(byCompact.get(compactName(name)) || [], used);

    if (!hit) {
      unmatched.push({ applyNo, name, winner });
      continue;
    }
    used.add(hit.id);

    const haveName = str(hit.winnerName);
    const haveAmt = hit.winnerAmount != null ? Number(hit.winnerAmount) : null;
    if (haveName) {
      const sameName = haveName === winner;
      const sameAmt = amount == null || haveAmt === amount;
      if (sameName && sameAmt) skippedSame.push(hit.bidNo);
      else conflicts.push({ bidNo: hit.bidNo, have: `${haveName}/${haveAmt}`, want: `${winner}/${amount}` });
      continue;
    }

    const note = str(hit.winnerNote) || 'OA 软件已删除迁入';
    if (APPLY) {
      await prisma.bidCase.update({
        where: { id: hit.id },
        data: {
          winnerName: winner,
          winnerAmount: amount == null ? undefined : new Prisma.Decimal(amount),
          winnerNote: note,
        },
      });
    }
    updated.push({
      bidNo: hit.bidNo,
      name: hit.name,
      winner,
      amount,
      via: hit.bidNo === applyNo ? 'bidNo' : str(hit.externalNo) === applyNo || hit.bidNo === official ? 'official' : 'name',
    });
  }

  console.log(
    JSON.stringify(
      {
        apply: APPLY,
        dumpSources: sources.length,
        terminated: bids.length,
        filled: updated.length,
        skippedSame: skippedSame.length,
        conflicts: conflicts.length,
        unmatched: unmatched.length,
        ownSkipped: ownSkipped.length,
        filledSample: updated.slice(0, 8),
        conflictRows: conflicts,
        unmatchedRows: unmatched.slice(0, 20),
        tinyAmounts: updated.filter((u) => u.amount != null && u.amount < 100),
      },
      null,
      2,
    ),
  );
}

main()
  .catch((e) => {
    console.error(e);
    process.exit(1);
  })
  .finally(() => prisma.$disconnect());