/**
 * Copy SMS wallet (+ optional history) from one SuperAdmin tenant to another.
 *
 * Example (on SuperAdmin server):
 *   SMS_COPY_FROM_DOMAIN=k.montzar.ir \
 *   SMS_COPY_TO_DOMAIN=app.aygingold.ir \
 *   SMS_COPY_HISTORY=1 \
 *   SMS_COPY_DRY_RUN=1 \
 *   npx ts-node --transpile-only prisma/copy-sms-between-tenants.ts
 */
import { PrismaClient, SmsLedgerType } from '@prisma/client';

const prisma = new PrismaClient();

function env(name: string, fallback = '') {
  return String(process.env[name] ?? fallback).trim();
}

function normalizeHost(value?: string | null) {
  if (!value) return '';
  return String(value)
    .trim()
    .toLowerCase()
    .replace(/^https?:\/\//, '')
    .split('/')[0]
    .split(':')[0];
}

function readDomains(raw: unknown): string[] {
  if (!raw) return [];
  if (Array.isArray(raw)) return raw.map(String);
  if (typeof raw === 'string') {
    try {
      const parsed = JSON.parse(raw);
      return Array.isArray(parsed) ? parsed.map(String) : [];
    } catch {
      return [];
    }
  }
  return [];
}

async function findTenantByDomain(domainRaw: string) {
  const host = normalizeHost(domainRaw);
  if (!host) throw new Error('domain is empty');

  const byId = env('SMS_COPY_TO_TENANT_ID') || env('SMS_COPY_FROM_TENANT_ID');
  // Prefer explicit ids when provided via dedicated envs in main().

  const candidates = new Set<string>([host]);
  if (host.startsWith('app.')) candidates.add(host.slice(4));
  else candidates.add(`app.${host}`);

  const tenants = await prisma.tenant.findMany({ where: { isActive: true } });

  // 1) Exact primary domain
  let hit = tenants.find((t) => candidates.has(normalizeHost(t.domain)));
  if (hit) return hit;

  // 2) Exact match in domains[] only (no nodeServer fuzzy)
  hit = tenants.find((t) => {
    for (const d of readDomains(t.domains)) {
      if (candidates.has(normalizeHost(d))) return true;
    }
    return false;
  });
  if (hit) return hit;

  // 3) Exact appUrl host
  hit = tenants.find((t) => candidates.has(normalizeHost(t.appUrl)));
  if (hit) return hit;

  const sample = tenants
    .filter((t) => /ayg|montzar|آیگ|ایگ/i.test(`${t.domain} ${t.nameFa} ${t.nodeServer} ${t.appUrl}`))
    .map((t) => ({
      id: t.id,
      domain: t.domain,
      nameFa: t.nameFa,
      nodeServer: t.nodeServer,
      appUrl: t.appUrl,
      domains: t.domains,
    }));
  console.error('Nearby tenants:', sample);
  throw new Error(`No active tenant matched domain exactly: ${host}`);
}

async function findTenant(opts: {
  domain?: string;
  tenantId?: string;
  nameFa?: string;
}) {
  if (opts.tenantId) {
    const t = await prisma.tenant.findUnique({ where: { id: opts.tenantId } });
    if (!t) throw new Error(`Tenant id not found: ${opts.tenantId}`);
    return t;
  }
  if (opts.nameFa) {
    const name = opts.nameFa.trim();
    const rows = await prisma.tenant.findMany({
      where: { isActive: true, nameFa: { contains: name } },
    });
    if (rows.length === 1) return rows[0];
    if (rows.length === 0) throw new Error(`No tenant nameFa contains: ${name}`);
    console.error(
      'Multiple name matches:',
      rows.map((t) => ({ id: t.id, nameFa: t.nameFa, domain: t.domain })),
    );
    throw new Error(`Ambiguous nameFa: ${name} (use SMS_COPY_TO_TENANT_ID)`);
  }
  if (!opts.domain) throw new Error('domain/tenantId/nameFa required');
  return findTenantByDomain(opts.domain);
}

async function main() {
  const fromDomain = env('SMS_COPY_FROM_DOMAIN', 'k.montzar.ir');
  const toDomain = env('SMS_COPY_TO_DOMAIN', 'app.aygingold.ir');
  const dryRun = env('SMS_COPY_DRY_RUN') === '1';
  const withHistory = env('SMS_COPY_HISTORY', '1') !== '0';
  const addDomainAlias = env('SMS_COPY_ADD_ALIAS', '1') !== '0';

  // If a previous run wrongly attached app.aygingold.ir onto k.montzar.ir, strip it first
  // unless source and target are intentionally the same.
  const stripWrongAlias = env('SMS_COPY_STRIP_ALIAS_FROM', 'k.montzar.ir');
  if (stripWrongAlias && normalizeHost(stripWrongAlias) !== normalizeHost(toDomain)) {
    const maybe = await prisma.tenant.findFirst({
      where: { domain: normalizeHost(stripWrongAlias) },
    });
    if (maybe) {
      const hostTo = normalizeHost(toDomain);
      const current = readDomains(maybe.domains).map(normalizeHost).filter(Boolean);
      if (current.includes(hostTo)) {
        const next = current.filter((d) => d !== hostTo);
        console.log(`Stripping alias ${hostTo} from ${maybe.domain} domains:`, current, '=>', next);
        if (!dryRun) {
          await prisma.tenant.update({
            where: { id: maybe.id },
            data: { domains: next },
          });
        }
      }
    }
  }

  const fromTenant = await findTenant({
    tenantId: env('SMS_COPY_FROM_TENANT_ID') || undefined,
    domain: fromDomain,
  });
  const toTenant = await findTenant({
    tenantId: env('SMS_COPY_TO_TENANT_ID') || undefined,
    nameFa: env('SMS_COPY_TO_NAME_FA') || undefined,
    domain: env('SMS_COPY_TO_TENANT_ID') || env('SMS_COPY_TO_NAME_FA') ? undefined : toDomain,
  });

  const fromAccount = await prisma.smsAccount.findUnique({
    where: { tenantId: fromTenant.id },
  });
  if (!fromAccount) {
    throw new Error(`Source tenant has no SMS account: ${fromTenant.domain}`);
  }

  const toAccountExisting = await prisma.smsAccount.findUnique({
    where: { tenantId: toTenant.id },
  });

  console.log(
    JSON.stringify(
      {
        dryRun,
        withHistory,
        addDomainAlias,
        from: {
          id: fromTenant.id,
          nameFa: fromTenant.nameFa,
          domain: fromTenant.domain,
          balanceRials: fromAccount.balanceRials,
        },
        to: {
          id: toTenant.id,
          nameFa: toTenant.nameFa,
          domain: toTenant.domain,
          existingBalanceRials: toAccountExisting?.balanceRials ?? null,
        },
      },
      null,
      2,
    ),
  );

  if (fromTenant.id === toTenant.id) {
    console.log('Source and target are the same tenant — nothing to copy.');
    if (addDomainAlias) {
      const host = normalizeHost(toDomain);
      const current = readDomains(fromTenant.domains).map(normalizeHost).filter(Boolean);
      if (!current.includes(host) && normalizeHost(fromTenant.domain) !== host) {
        const next = [...new Set([...current, host])];
        if (!dryRun) {
          await prisma.tenant.update({
            where: { id: fromTenant.id },
            data: { domains: next },
          });
        }
        console.log(`Alias domain added to tenant domains: ${host}`);
      }
    }
    return;
  }

  if (dryRun) {
    console.log('DRY RUN: no writes.');
    return;
  }

  const accountPayload = {
    balanceRials: fromAccount.balanceRials,
    pricePerPartRials: fromAccount.pricePerPartRials,
    isBlocked: fromAccount.isBlocked,
    alertCriticalRials: fromAccount.alertCriticalRials,
    alertWarningRials: fromAccount.alertWarningRials,
    gatewayProvider: fromAccount.gatewayProvider,
    melipayamakUser: fromAccount.melipayamakUser,
    melipayamakPassword: fromAccount.melipayamakPassword,
    melipayamakFrom: fromAccount.melipayamakFrom,
    panelUsername: fromAccount.panelUsername,
    panelPassword: fromAccount.panelPassword,
    panelFrom: fromAccount.panelFrom,
    chargeCard: fromAccount.chargeCard,
    chargeIban: fromAccount.chargeIban,
    chargeHolder: fromAccount.chargeHolder,
    chargeInstruction: fromAccount.chargeInstruction,
    extraSettings: fromAccount.extraSettings ?? undefined,
  };

  const toAccount = await prisma.smsAccount.upsert({
    where: { tenantId: toTenant.id },
    create: { tenantId: toTenant.id, ...accountPayload },
    update: accountPayload,
  });

  let ledgerCount = 0;
  let sendLogCount = 0;

  if (withHistory) {
    await prisma.smsSendLog.deleteMany({ where: { smsAccountId: toAccount.id } });
    await prisma.smsLedger.deleteMany({ where: { smsAccountId: toAccount.id } });

    const ledgers = await prisma.smsLedger.findMany({
      where: { smsAccountId: fromAccount.id },
      orderBy: { createdAt: 'asc' },
    });
    const logs = await prisma.smsSendLog.findMany({
      where: { smsAccountId: fromAccount.id },
      orderBy: { createdAt: 'asc' },
    });

    const chunk = 200;
    for (let i = 0; i < ledgers.length; i += chunk) {
      const slice = ledgers.slice(i, i + chunk);
      await prisma.smsLedger.createMany({
        data: slice.map((row) => ({
          smsAccountId: toAccount.id,
          type: row.type as SmsLedgerType,
          amountRials: row.amountRials,
          balanceAfterRials: row.balanceAfterRials,
          parts: row.parts,
          note: row.note,
          createdById: row.createdById,
          createdAt: row.createdAt,
        })),
      });
    }
    for (let i = 0; i < logs.length; i += chunk) {
      const slice = logs.slice(i, i + chunk);
      await prisma.smsSendLog.createMany({
        data: slice.map((row) => ({
          smsAccountId: toAccount.id,
          receiver: row.receiver,
          body: row.body,
          parts: row.parts,
          pricePerPartRials: row.pricePerPartRials,
          totalAmountRials: row.totalAmountRials,
          provider: row.provider,
          source: row.source,
          isAlert: row.isAlert,
          createdAt: row.createdAt,
        })),
      });
    }
    ledgerCount = ledgers.length;
    sendLogCount = logs.length;
  }

  if (addDomainAlias) {
    // Ensure target tenant also recognizes k.montzar.ir alias if useful
    const aliases = [normalizeHost(fromDomain), normalizeHost(toDomain)].filter(Boolean);
    const current = readDomains(toTenant.domains).map(normalizeHost).filter(Boolean);
    const next = [...new Set([...current, ...aliases.filter((d) => d !== normalizeHost(toTenant.domain))])];
    await prisma.tenant.update({
      where: { id: toTenant.id },
      data: { domains: next },
    });
  }

  await prisma.auditLog.create({
    data: {
      action: 'sms.copy.between_tenants',
      entityType: 'sms_account',
      entityId: toAccount.id,
      tenantId: toTenant.id,
      after: {
        fromTenantId: fromTenant.id,
        fromDomain: fromTenant.domain,
        toDomain: toTenant.domain,
        balanceRials: accountPayload.balanceRials,
        ledgerCount,
        sendLogCount,
      },
    },
  });

  console.log('OK: SMS account copied.', {
    toSmsAccountId: toAccount.id,
    balanceRials: accountPayload.balanceRials,
    ledgerCount,
    sendLogCount,
  });
}

main()
  .catch((err) => {
    console.error(err);
    process.exitCode = 1;
  })
  .finally(async () => {
    await prisma.$disconnect();
  });