// Builds n8n/W2-customerproduct-sync.json — the CustomerProduct webhook.
// Single source of truth: shared/effective-grants.js (inlined) + w2-body.js.
// Run: node n8n/gen_w2.js
const fs = require('fs');
const path = require('path');
const { sharedSource } = require('./inline_shared');

let body = fs.readFileSync(path.join(__dirname, 'w2-body.js'), 'utf8');
body = body.replace('// __SHARED_INLINE__  (replaced by shared/effective-grants.js source at build)', sharedSource());

const workflow = {
  name: 'W2 - CustomerProduct Sync (Effective Grants)',
  nodes: [
    {
      parameters: {
        httpMethod: 'POST',
        path: 'alist-customerproduct-sync',
        responseMode: 'onReceived',
        options: {}
      },
      id: 'trigger-webhook',
      name: 'NocoDB: CustomerProduct Webhook',
      type: 'n8n-nodes-base.webhook',
      typeVersion: 2,
      position: [0, 0],
      webhookId: 'customerproduct-sync'
    },
    {
      parameters: {
        jsCode: "const body = $input.item.json.body ?? $input.item.json;\nconst data = body.data ?? {};\nconst rows = data.rows?.[0] ?? data.rows_new?.[0] ?? data.rows_old?.[0] ?? {};\nconst id = rows.Id ?? data.data?.rows?.[0]?.Id;\nif (!id) throw new Error('no CustomerProduct Id in webhook');\nreturn { json: { customerProductId: Number(id), eventType: body.type ?? '' } };\n"
      },
      id: 'extract-id',
      name: 'Extract CustomerProduct Id',
      type: 'n8n-nodes-base.code',
      typeVersion: 2,
      position: [220, 0]
    },
    {
      parameters: {
        jsCode: "// pass-through env + webhook fields (Code node reads $env reliably only here)\nconst prev = $input.item.json;\nreturn { json: {\n  customerProductId: prev.customerProductId,\n  eventType: prev.eventType,\n  NOCODB_URL: $env.NOCODB_URL,\n  NOCODB_TOKEN: $env.NOCODB_TOKEN,\n  NOCODB_TABLE_CUSTOMERPRODUCTS: $env.NOCODB_TABLE_CUSTOMERPRODUCTS,\n  NOCODB_TABLE_CUSTOMERS: $env.NOCODB_TABLE_CUSTOMERS,\n  NOCODB_TABLE_PRODUCTS: $env.NOCODB_TABLE_PRODUCTS,\n  NOCODB_TABLE_RESOURCES: $env.NOCODB_TABLE_RESOURCES,\n  NOCODB_TABLE_ACCESSGRANTS: $env.NOCODB_TABLE_ACCESSGRANTS,\n  NOCODB_LINK_PROD_RESOURCES: $env.NOCODB_LINK_PROD_RESOURCES,\n  ALIST_URL: $env.ALIST_URL,\n  ALIST_ADMIN_USERNAME: $env.ALIST_ADMIN_USERNAME,\n  ALIST_ADMIN_PASSWORD: $env.ALIST_ADMIN_PASSWORD,\n} };\n"
      },
      id: 'load-env',
      name: 'Load Env',
      type: 'n8n-nodes-base.code',
      typeVersion: 2,
      position: [220, 0]
    },
    {
      parameters: { jsCode: body },
      id: 'compute-apply',
      name: 'Compute Effective Grants & Apply',
      type: 'n8n-nodes-base.code',
      typeVersion: 2,
      position: [440, 0]
    },
    {
      parameters: {
        conditions: {
          options: { caseSensitive: true, leftValue: '', typeName: 'boolean', ignoreCase: true },
          conditions: [
            {
              id: 'cond-skip',
              leftValue: "={{ $('Compute Effective Grants & Apply').item.json.skipWriteBack }}",
              rightValue: true,
              operator: { type: 'boolean', operation: 'equals', singleValue: true, rightType: 'boolean' }
            }
          ],
          combinator: 'and'
        },
        options: {}
      },
      id: 'if-skip',
      name: 'Skip if no change',
      type: 'n8n-nodes-base.if',
      typeVersion: 2,
      position: [660, 0]
    },
    {
      parameters: {
        jsCode: "return { json: { skipped: true, customerId: $('Compute Effective Grants & Apply').item.json.customerId } };"
      },
      id: 'skip-echo',
      name: 'Skip Echo (No-op)',
      type: 'n8n-nodes-base.code',
      typeVersion: 2,
      position: [660, -200]
    }
  ],
  connections: {
    'NocoDB: CustomerProduct Webhook': { main: [[{ node: 'Extract CustomerProduct Id', type: 'main', index: 0 }]] },
    'Extract CustomerProduct Id': { main: [[{ node: 'Load Env', type: 'main', index: 0 }]] },
    'Load Env': { main: [[{ node: 'Compute Effective Grants & Apply', type: 'main', index: 0 }]] },
    'Compute Effective Grants & Apply': { main: [[{ node: 'Skip if no change', type: 'main', index: 0 }]] },
    'Skip if no change': {
      main: [
        [{ node: 'Skip Echo (No-op)', type: 'main', index: 0 }],
        [] // no-change path terminates silently (nothing to do)
      ]
    },
    'Skip Echo (No-op)': { main: [] }
  },
  settings: { executionOrder: 'v1' },
  pinData: {}
};

fs.writeFileSync(path.join(__dirname, 'W2-customerproduct-sync.json'), JSON.stringify(workflow, null, 2) + '\n');
console.log('wrote W2-customerproduct-sync.json (' + body.length + ' chars body)');