// CLI de administración de suscripciones (@OEVC/@EVC1) contra el Service
// Layer configurado en .env. Requiere que las 4 UserTables ya existan
// (`npm run provision`).
//
// Uso:
//   npx tsx scripts/manage-subscriptions.ts subscription:add <webhookId> <webhookUrl> [--hmac-key <secreto>]
//   npx tsx scripts/manage-subscriptions.ts subscription:list
//   npx tsx scripts/manage-subscriptions.ts subscription:update-url <webhookId> <webhookUrl>
//   npx tsx scripts/manage-subscriptions.ts subscription:pause <webhookId>
//   npx tsx scripts/manage-subscriptions.ts subscription:resume <webhookId>
//   npx tsx scripts/manage-subscriptions.ts subscription:delete <webhookId>
//
//   npx tsx scripts/manage-subscriptions.ts filter:add <webhookId> <bizObject> <transType> <objectType>
//   npx tsx scripts/manage-subscriptions.ts filter:remove <webhookId> <bizObject> <transType>
//   npx tsx scripts/manage-subscriptions.ts filter:list

import { config } from '../src/config.ts';
import { ServiceLayerClient } from '../src/service-layer-client.ts';
import * as evn1 from '../src/dispatcher/evn1-repository.ts';
import * as oevn from '../src/dispatcher/oevn-repository.ts';
import { generateCode } from '../src/lib/codes.ts';
import { userTableEntity } from '../src/lib/service-layer-paths.ts';

const client = new ServiceLayerClient(config.serviceLayer);
const OEVC = userTableEntity('OEVC');
const EVC1 = userTableEntity('EVC1');

function fail(message: string): never {
  console.error(`Error: ${message}`);
  process.exit(1);
}

function flag(args: string[], name: string): string | undefined {
  const index = args.indexOf(`--${name}`);
  return index === -1 ? undefined : args[index + 1];
}

async function main() {
  const [command, ...args] = process.argv.slice(2);

  switch (command) {
    case 'subscription:add': {
      const [webhookId, webhookUrl] = args;
      if (!webhookId || !webhookUrl) fail('subscription:add <webhookId> <webhookUrl> [--hmac-key <secreto>]');

      const hmacKey = flag(args, 'hmac-key');
      await client.post(`/${OEVC}`, {
        Code: webhookId,
        Name: webhookId,
        U_WebhookURL: webhookUrl,
        U_AuthType: hmacKey ? 'H' : 'N',
        U_AuthCred: hmacKey ? JSON.stringify({ Key: hmacKey, Algorithm: 'hmacsha256' }) : null,
        U_State: 'A',
        U_WorkMode: 'S',
      });
      console.log(`Suscripción ${webhookId} creada (${webhookUrl}).`);
      break;
    }

    case 'subscription:list': {
      const rows = await client.getAll(`/${OEVC}`);
      console.table(
        rows.map((row) => ({
          webhookId: row.Code,
          url: row.U_WebhookURL,
          authType: row.U_AuthType,
          state: row.U_State,
        })),
      );
      break;
    }

    case 'subscription:update-url': {
      const [webhookId, webhookUrl] = args;
      if (!webhookId || !webhookUrl) fail('subscription:update-url <webhookId> <webhookUrl>');
      await client.patch(`/${OEVC}('${webhookId}')`, { U_WebhookURL: webhookUrl });
      console.log(`Suscripción ${webhookId} actualizada -> ${webhookUrl}.`);
      break;
    }

    case 'subscription:pause': {
      const [webhookId] = args;
      if (!webhookId) fail('subscription:pause <webhookId>');
      await client.patch(`/${OEVC}('${webhookId}')`, { U_State: 'I' });
      console.log(`Suscripción ${webhookId} pausada (State='I').`);
      break;
    }

    case 'subscription:resume': {
      const [webhookId] = args;
      if (!webhookId) fail('subscription:resume <webhookId>');
      await client.patch(`/${OEVC}('${webhookId}')`, { U_State: 'A' });
      const reset = await evn1.resetRetries(client, webhookId);
      console.log(`Suscripción ${webhookId} reactivada (State='A'); ${reset} entrega(s) con U_Retry reiniciado a 0.`);
      break;
    }

    case 'subscription:delete': {
      const [webhookId] = args;
      if (!webhookId) fail('subscription:delete <webhookId>');

      // 1) Entregas fallidas/pendientes (Status='F') de esta suscripción. Las ya
      //    entregadas (Status='D') se conservan como historial.
      const failed = await evn1.listPendingForWebhook(client, webhookId);
      for (const row of failed) await evn1.deleteRow(client, row.code);

      // 2) Eventos de @OEVN que quedaron sin ninguna entrega asociada (solo
      //    existían para esta suscripción) se borran; los demás se recalculan.
      let eventsDeleted = 0;
      for (const eventId of new Set(failed.map((r) => r.eventId))) {
        const remaining = await evn1.listForEvent(client, eventId);
        if (remaining.length === 0) {
          await oevn.deleteEvent(client, eventId);
          eventsDeleted++;
        } else {
          await oevn.setEventStatus(client, eventId, remaining.every((r) => r.status === 'D') ? 'D' : 'P');
        }
      }

      // 3) Filtros de @EVC1.
      const filters = await client.getAll(`/${EVC1}?$filter=${encodeURIComponent(`U_WebhookID eq '${webhookId}'`)}`);
      for (const f of filters) await client.delete(`/${EVC1}('${f.Code}')`);

      // 4) La suscripción en sí.
      await client.delete(`/${OEVC}('${webhookId}')`);
      console.log(
        `Suscripción ${webhookId} eliminada: ${filters.length} filtro(s), ${failed.length} entrega(s) fallida(s), ` +
          `${eventsDeleted} evento(s) huérfano(s) de @OEVN.`,
      );
      break;
    }

    case 'filter:add': {
      const [webhookId, bizObject, transType, objectType] = args;
      if (!webhookId || !bizObject || !transType || !objectType) {
        fail('filter:add <webhookId> <bizObject> <transType> <objectType>');
      }
      await client.post(`/${EVC1}`, {
        Code: generateCode(),
        Name: `${webhookId}/${bizObject}/${transType}`,
        U_WebhookID: webhookId,
        U_BizObject: bizObject,
        U_TransType: transType,
        U_ObjectType: objectType,
      });
      console.log(`Filtro agregado: ${webhookId} -> ${bizObject}/${transType} (ObjectType ${objectType}).`);
      break;
    }

    case 'filter:remove': {
      const [webhookId, bizObject, transType] = args;
      if (!webhookId || !bizObject || !transType) {
        fail('filter:remove <webhookId> <bizObject> <transType>');
      }
      const filter = encodeURIComponent(
        `U_WebhookID eq '${webhookId}' and U_BizObject eq '${bizObject}' and U_TransType eq '${transType}'`,
      );
      const res = await client.get(`/${EVC1}?$filter=${filter}`);
      const rows = (res.data?.value as { Code: string }[]) ?? [];
      if (rows.length === 0) fail(`no existe el filtro ${webhookId} -> ${bizObject}/${transType}`);
      await client.delete(`/${EVC1}('${rows[0].Code}')`);
      console.log(`Filtro eliminado: ${webhookId} -> ${bizObject}/${transType}.`);
      break;
    }

    case 'filter:list': {
      const rows = await client.getAll(`/${EVC1}`);
      console.table(
        rows.map((row) => ({
          webhookId: row.U_WebhookID,
          bizObject: row.U_BizObject,
          transType: row.U_TransType,
          objectType: row.U_ObjectType,
        })),
      );
      break;
    }

    default:
      fail(
        `comando desconocido: ${command ?? '(ninguno)'}\nComandos disponibles: subscription:add, subscription:list, ` +
          'subscription:update-url, subscription:pause, subscription:resume, subscription:delete, filter:add, filter:remove, filter:list',
      );
  }
}

main().catch((err) => {
  console.error(err);
  process.exitCode = 1;
});