{
  "version": 3,
  "sources": ["../../../src/cdc/handler.ts"],
  "sourcesContent": ["import snakeCase from 'lodash/snakeCase.js';\n\nimport type {\n  ChangeDataCaptureConfig,\n  Model,\n} from '@code-like-a-carpenter/foundation-intermediate-representation';\n\nimport type {\n  AWSIAMPolicy,\n  Resource7,\n} from '../__generated__/json-schemas/serverless-application-model.ts';\nimport type {Config} from '../config.ts';\nimport {combineFragments} from '../fragments/combine-fragments.ts';\nimport {makeKmsKey} from '../fragments/kms-key.ts';\nimport {writeLambda} from '../fragments/lambda.ts';\nimport {filterNull} from '../helpers.ts';\nimport {makeHandlerStack, makeHandlerStackName} from '../stacks/handler.ts';\nimport type {ServerlessApplicationModel} from '../types.ts';\n\n/** generate the dispatcher lambda function */\nexport function makeHandler(\n  config: Config,\n  model: Model,\n  cdc: ChangeDataCaptureConfig,\n  template: string\n): {\n  fragment: ServerlessApplicationModel;\n  stack: ServerlessApplicationModel;\n} {\n  const {\n    table: {tableName},\n  } = model;\n\n  const {\n    directory,\n    event,\n    filename,\n    functionName,\n    memorySize,\n    readableTables,\n    sourceModelName,\n    timeout,\n    nestedStackLocation,\n    writableTables,\n  } = cdc;\n\n  writeLambda(directory, template);\n\n  const stackName = makeHandlerStackName(model, cdc);\n  const qKeyName = 'SharedKmsKey';\n\n  const stack: Resource7 = {\n    Properties: {\n      Location: nestedStackLocation,\n      Parameters: {\n        ...(config.singleQueueKey\n          ? {\n              ExternalKmsMasterKeyId: {\n                'Fn::If': [\n                  'DefineSharedKmsKey',\n                  {Ref: qKeyName},\n                  'AWS::NoValue',\n                ],\n              },\n            }\n          : {}),\n        CodeUri: filename,\n        DetailType: event === 'UPSERT' ? 'INSERT,MODIFY' : event,\n        MemorySize: memorySize,\n        SourceModelName: sourceModelName,\n        StageName: {Ref: 'StageName'},\n        TableArn: {'Fn::GetAtt': [tableName, 'Arn']},\n        // This is the table logical name, not the table name\n        TableName: tableName,\n        TableNames: {\n          'Fn::ToJsonString': Object.fromEntries(\n            [...readableTables, ...writableTables].map((t) => [\n              snakeCase(t).toUpperCase(),\n              {Ref: t},\n            ])\n          ),\n        },\n        Timeout: timeout,\n      },\n    },\n    Type: 'AWS::Serverless::Application',\n  };\n\n  const tableAccessPolicy: AWSIAMPolicy = {\n    Properties: {\n      PolicyDocument: {\n        Statement: [\n          readableTables.length && {\n            Action: [\n              'dynamodb:GetItem',\n              'dynamodb:Scan',\n              'dynamodb:Query',\n              'dynamodb:BatchGetItem',\n              'dynamodb:DescribeTable',\n            ],\n            Effect: 'Allow',\n            Resource: [\n              ...readableTables.map((name) => ({\n                'Fn::GetAtt': [name, 'Arn'],\n              })),\n              ...readableTables.map((name) => ({\n                'Fn::Sub': [\n                  // eslint-disable-next-line no-template-curly-in-string\n                  '${tableArn}/index/*',\n                  {tableArn: {'Fn::GetAtt': [name, 'Arn']}},\n                ],\n              })),\n            ],\n          },\n          writableTables.length && {\n            Action: [\n              'dynamodb:GetItem',\n              'dynamodb:DeleteItem',\n              'dynamodb:PutItem',\n              'dynamodb:Scan',\n              'dynamodb:Query',\n              'dynamodb:UpdateItem',\n              'dynamodb:BatchWriteItem',\n              'dynamodb:BatchGetItem',\n              'dynamodb:DescribeTable',\n              'dynamodb:ConditionCheckItem',\n            ],\n            Effect: 'Allow',\n            Resource: [\n              ...writableTables.map((name) => ({\n                'Fn::GetAtt': [name, 'Arn'],\n              })),\n              ...writableTables.map((name) => ({\n                'Fn::Sub': [\n                  // eslint-disable-next-line no-template-curly-in-string\n                  '${tableArn}/index/*',\n                  {tableArn: {'Fn::GetAtt': [name, 'Arn']}},\n                ],\n              })),\n            ],\n          },\n        ].filter(filterNull),\n        Version: '2012-10-17',\n      },\n      PolicyName: `${functionName}TableAccessPolicy`,\n      Roles: [\n        // @ts-expect-error typedef doesn't include intrinsic functions\n        {'Fn::GetAtt': [stackName, 'Outputs.Role']},\n      ],\n    },\n    Type: 'AWS::IAM::Policy',\n  };\n\n  const tableAccessPolicyName = `${functionName}TableAccessPolicy`;\n\n  const fragment = combineFragments({\n    Conditions: config.singleQueueKey\n      ? {DefineSharedKmsKey: {Condition: 'IsProd'}}\n      : {},\n    Resources: {\n      ...(config.singleQueueKey\n        ? {[qKeyName]: {...makeKmsKey(), Condition: 'DefineSharedKmsKey'}}\n        : {}),\n      [stackName]: stack,\n      ...(readableTables.length || writableTables.length\n        ? {[tableAccessPolicyName]: tableAccessPolicy}\n        : {}),\n    },\n    Transform: ['AWS::LanguageExtensions'],\n  });\n  const handlerStack = makeHandlerStack(config);\n\n  return {fragment, stack: handlerStack};\n}\n"],
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