import type {
  IExecuteFunctions,
  ILoadOptionsFunctions,
  INodeExecutionData,
  INodeType,
  INodeTypeDescription,
} from 'n8n-workflow';
import { NodeConnectionTypes, NodeOperationError } from 'n8n-workflow';

import {
  FOUNDRY_BINDING_PATH,
  FOUNDRY_BASE_URL_ENV,
  FOUNDRY_CATALOG_PATH,
  FOUNDRY_DEFAULT_BASE_URL,
  NDC_FOUNDRY_BINDING_CREDENTIAL,
  NDC_NODE_ICON,
} from '../shared/constants';
import { buildFoundryBindingPayload } from '../shared/contracts';
import { safeHttpError, safeInputError } from '../shared/errors';
import { loadDataProductOptions, ndcRequest, serviceBaseUrl } from '../shared/http';

export class NdcFoundryBinding implements INodeType {
  description: INodeTypeDescription = {
    displayName: 'NDC Foundry Binding',
    name: 'ndcFoundryBinding',
    icon: NDC_NODE_ICON,
    group: ['output'],
    version: 1,
    subtitle: '={{$parameter["dataProductId"]}}',
    description: 'Bind an approved Data Product to a Foundry page slot through the control plane',
    defaults: { name: 'NDC Foundry Binding' },
    inputs: [NodeConnectionTypes.Main],
    outputs: [NodeConnectionTypes.Main],
    credentials: [{ name: NDC_FOUNDRY_BINDING_CREDENTIAL, required: true }],
    properties: [
      {
        displayName: 'Uses the dedicated Foundry control-plane endpoint and a separate scoped workload grant. It fails closed if either is unavailable and never sends runtime facts or provider credentials to Foundry.',
        name: 'availabilityNotice',
        type: 'notice',
        default: '',
      },
      {
        displayName: 'Application ID',
        name: 'applicationId',
        type: 'string',
        default: '',
        required: true,
      },
      {
        displayName: 'Page ID',
        name: 'pageId',
        type: 'string',
        default: '',
        required: true,
      },
      {
        displayName: 'Binding ID',
        name: 'bindingId',
        type: 'string',
        default: '',
        required: true,
      },
      {
        displayName: 'Data Product Name or ID',
        name: 'dataProductId',
        type: 'options',
        typeOptions: { loadOptionsMethod: 'getDataProducts' },
        default: '',
        required: true,
      },
      {
        displayName: 'Slot ID',
        name: 'slotId',
        type: 'string',
        default: 'points',
        required: true,
      },
      {
        displayName: 'Semantic Types',
        name: 'semanticTypes',
        type: 'string',
        typeOptions: { multipleValues: true, multipleValueButtonText: 'Add Semantic Type' },
        default: [],
        required: true,
      },
      {
        displayName: 'Field Projection',
        name: 'fieldProjection',
        type: 'string',
        typeOptions: { multipleValues: true, multipleValueButtonText: 'Add Field' },
        default: [],
      },
    ],
  };

  methods = {
    loadOptions: {
      async getDataProducts(this: ILoadOptionsFunctions) {
        return loadDataProductOptions(
          this,
          NDC_FOUNDRY_BINDING_CREDENTIAL,
          FOUNDRY_BASE_URL_ENV,
          FOUNDRY_DEFAULT_BASE_URL,
          FOUNDRY_CATALOG_PATH,
        );
      },
    },
  };

  async execute(this: IExecuteFunctions): Promise<INodeExecutionData[][]> {
    let body;
    try {
      body = buildFoundryBindingPayload({
        applicationId: this.getNodeParameter('applicationId', 0) as string,
        pageId: this.getNodeParameter('pageId', 0) as string,
        binding: {
          id: this.getNodeParameter('bindingId', 0) as string,
          dataProductId: this.getNodeParameter('dataProductId', 0) as string,
          slotId: this.getNodeParameter('slotId', 0) as string,
          semanticTypes: this.getNodeParameter('semanticTypes', 0, []) as string[],
          fieldProjection: this.getNodeParameter('fieldProjection', 0, []) as string[],
        },
      });
    } catch (error) {
      throw new NodeOperationError(this.getNode(), safeInputError(error, 'ndc_foundry_binding_input_invalid'));
    }

    try {
      const baseUrl = serviceBaseUrl(FOUNDRY_BASE_URL_ENV, FOUNDRY_DEFAULT_BASE_URL);
      const response = await ndcRequest(this, NDC_FOUNDRY_BINDING_CREDENTIAL, {
        method: 'POST',
        url: `${baseUrl}${FOUNDRY_BINDING_PATH}`,
        body,
      });
      return [[{ json: response as INodeExecutionData['json'], pairedItem: { item: 0 } }]];
    } catch (error) {
      throw new NodeOperationError(this.getNode(), safeHttpError(error, 'ndc_foundry_binding_unavailable'));
    }
  }
}