import * as cdk from 'aws-cdk-lib';
import { Construct } from 'constructs';
import { ConversationLogConstruct } from './constructs/conversation-log';
import { KnowledgeBaseConstruct } from './constructs/knowledge-base';
import { BedrockAgentConstruct } from './constructs/bedrock-agent';
import { SlackHandlerConstruct } from './constructs/slack-handler';

export class SeahavenSlackBotStack extends cdk.Stack {
  constructor(scope: Construct, id: string, props?: cdk.StackProps) {
    super(scope, id, props);

    // Wildcard cert ARN (*.seahaven.com) — set in cdk.json or via --context
    const wildcardCertArn = this.node.tryGetContext('wildcardCertArn') as string | undefined;
    if (!wildcardCertArn || wildcardCertArn.includes('CHANGE-ME')) {
      throw new Error(
        'Set wildcardCertArn in cdk.json or pass --context wildcardCertArn=arn:aws:acm:...\n' +
        'Run: aws acm list-certificates --region us-east-1 to find your cert ARN.',
      );
    }

    // ── Conversation history (DynamoDB) ───────────────────────────────────────
    const conversationLog = new ConversationLogConstruct(this, 'ConversationLog');

    // ── Bedrock Knowledge Base (OpenSearch Serverless + S3) ───────────────────
    const knowledgeBase = new KnowledgeBaseConstruct(this, 'KnowledgeBase', {
      accountId: this.account,
      region: this.region,
    });

    // ── Bedrock Agent (Claude Sonnet + QBO + Google Maps action groups) ───────
    const bedrockAgent = new BedrockAgentConstruct(this, 'BedrockAgent', {
      accountId: this.account,
      region: this.region,
      knowledgeBaseId: knowledgeBase.knowledgeBase.knowledgeBaseId,
      knowledgeBaseArn: knowledgeBase.knowledgeBase.knowledgeBaseArn,
    });

    // ── Slack webhook handler (API Gateway + Lambda) ───────────────────────────
    new SlackHandlerConstruct(this, 'SlackHandler', {
      accountId: this.account,
      region: this.region,
      agentId: bedrockAgent.agent.attrAgentId,
      agentAliasId: bedrockAgent.agentAlias.attrAgentAliasId,
      conversationTable: conversationLog.table,
      wildcardCertArn,
    });

    // ── Stack outputs ─────────────────────────────────────────────────────────
    new cdk.CfnOutput(this, 'KBDocsBucketName', {
      value: knowledgeBase.docsBucket.bucketName,
      description: 'Upload SA8000 docs, SOPs, and employee handbook here to populate the KB',
    });

    new cdk.CfnOutput(this, 'AgentId', {
      value: bedrockAgent.agent.attrAgentId,
      description: 'Bedrock Agent ID',
    });

  }
}