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

const prisma = new PrismaClient();
const DUMP = '/opt/import/prod/oa_clean.json';

type Row = Record<string, unknown>;

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

const CANON = [
  { name: '江苏风影随行科技有限公司', shortName: '随行科技', aliases: ['江苏风影随行科技有限公司', '江苏风影随行', '随行科技'] },
  { name: '江苏风影软件有限公司', shortName: '风影软件', aliases: ['江苏风影软件有限公司', '风影软件'] },
  { name: '江苏风影工程科技有限公司', shortName: '风影工程', aliases: ['江苏风影工程科技有限公司', '风影工程'] },
  { name: '山东鲁兵', shortName: '山东鲁兵', aliases: ['山东鲁兵', '鲁兵'] },
  { name: '隆创', shortName: '隆创', aliases: ['隆创'] },
] as const;

function canonOf(raw: string) {
  const s = str(raw);
  if (!s) return null;
  if (/软件/.test(s) && /风影/.test(s)) return CANON[1];
  if (/工程/.test(s) && /风影/.test(s)) return CANON[2];
  if (/随行/.test(s) || s === '江苏风影' || (s.includes('风影') && !/软件|工程/.test(s))) return CANON[0];
  if (s.includes('鲁兵')) return CANON[3];
  if (s.includes('隆创')) return CANON[4];
  for (const c of CANON) {
    if (c.aliases.some((a) => s === a || s.includes(a))) return c;
  }
  return null;
}

async function main() {
  const ids = new Map<string, string>();
  for (const c of CANON) {
    let row =
      (await prisma.legalEntity.findFirst({ where: { tenantId: '1', name: c.name } })) ||
      (await prisma.legalEntity.findFirst({
        where: { tenantId: '1', OR: c.aliases.map((a) => ({ name: a })) },
      }));
    if (row) {
      row = await prisma.legalEntity.update({
        where: { id: row.id },
        data: { name: c.name, shortName: c.shortName, isDefault: c.name === '江苏风影随行科技有限公司' },
      });
    } else {
      row = await prisma.legalEntity.create({
        data: {
          name: c.name,
          shortName: c.shortName,
          isDefault: c.name === '江苏风影随行科技有限公司',
        },
      });
    }
    ids.set(c.name, row.id);
  }

  const all = await prisma.legalEntity.findMany({ where: { tenantId: '1' } });
  const keep = new Set(ids.values());
  let merged = 0;
  for (const extra of all) {
    if (keep.has(extra.id)) continue;
    const hit = canonOf(extra.name) || canonOf(extra.shortName);
    const target = hit ? ids.get(hit.name) : ids.get('江苏风影随行科技有限公司');
    if (!target || target === extra.id) continue;
    const n = await prisma.bidCase.updateMany({ where: { legalEntityId: extra.id }, data: { legalEntityId: target } });
    await prisma.contract.updateMany({ where: { legalEntityId: extra.id }, data: { legalEntityId: target } }).catch(() => null);
    await prisma.sealItem.updateMany({ where: { legalEntityId: extra.id }, data: { legalEntityId: target } }).catch(() => null);
    await prisma.registeredAsset.updateMany({ where: { legalEntityId: extra.id }, data: { legalEntityId: target } }).catch(() => null);
    await prisma.legalEntity.delete({ where: { id: extra.id } }).catch(() => null);
    merged += 1;
    console.log('merged', extra.name, '->', hit?.name, 'bids', n.count);
  }

  await prisma.legalEntity.updateMany({
    where: { name: { not: '江苏风影随行科技有限公司' } },
    data: { isDefault: false },
  });
  await prisma.legalEntity.updateMany({
    where: { name: '江苏风影随行科技有限公司' },
    data: { isDefault: true },
  });

  let remapped = 0;
  if (fs.existsSync(DUMP)) {
    const raw = JSON.parse(fs.readFileSync(DUMP, 'utf8')) as Record<string, Row[]>;
    const tenders = raw.oa_tender || [];
    const bids = await prisma.bidCase.findMany({ select: { id: true, name: true, bidNo: true, externalNo: true } });
    for (const t of tenders) {
      const name = str(t.project_name);
      const sys = str(t.system_number);
      const official = str(t.project_number);
      const row =
        bids.find((b) => b.name === name) ||
        bids.find((b) => b.bidNo === sys || b.externalNo === official || b.bidNo === official);
      const hit = canonOf(str(t.participating_unit));
      const legalEntityId = hit ? ids.get(hit.name) : undefined;
      const winner = str(t.winning_unit);
      const amtRaw = str(t.winning_amount);
      const status = str(t.winning_status);
      if (!row) continue;
      const data: { legalEntityId?: string; winnerName?: string; winnerAmount?: number } = {};
      if (legalEntityId) data.legalEntityId = legalEntityId;
      if (winner && status && !/中标/.test(status)) {
        data.winnerName = winner;
        if (amtRaw && !Number.isNaN(Number(amtRaw))) data.winnerAmount = Number(amtRaw);
      }
      if (!Object.keys(data).length) continue;
      await prisma.bidCase.update({ where: { id: row.id }, data });
      remapped += 1;
    }
  }

  const leftover = await prisma.legalEntity.findMany({ where: { tenantId: '1' }, orderBy: { name: 'asc' } });
  const grouped = await prisma.bidCase.groupBy({ by: ['legalEntityId'], _count: true });
  console.log(
    JSON.stringify(
      {
        entities: leftover.map((e) => ({ name: e.name, shortName: e.shortName, isDefault: e.isDefault })),
        bids: grouped.map((g) => ({
          id: g.legalEntityId,
          count: g._count,
          name: leftover.find((e) => e.id === g.legalEntityId)?.name || '(空)',
        })),
        merged,
        remapped,
      },
      null,
      2,
    ),
  );
}

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