import { Controller, Post, Body, Headers, HttpException, HttpStatus, Logger } from '@nestjs/common';
import { CallerResolutionService } from './caller-resolution.service';
import { CallerContextService } from './caller-context.service';

@Controller('api/caller')
export class CallerResolutionController {
    private readonly logger = new Logger(CallerResolutionController.name);

    constructor(
        private readonly resolution: CallerResolutionService,
        private readonly callerContext: CallerContextService,
    ) {}

    @Post('resolve')
    async resolve(
        @Body('phone') phone: string,
        @Headers('authorization') auth: string,
    ) {
        if (!phone) {
            throw new HttpException('phone is required', HttpStatus.BAD_REQUEST);
        }
        if (!auth) {
            throw new HttpException('Authorization header required', HttpStatus.UNAUTHORIZED);
        }

        this.logger.log(`[RESOLVE] Resolving caller: ${phone}`);
        const result = await this.resolution.resolve(phone, auth);

        // Pre-warm caller context cache so the AI chat has it ready
        if (result.leadId) {
            this.callerContext.prewarm(result.leadId, result.patientId, auth);
        }

        return result;
    }

    @Post('invalidate-context')
    async invalidateContext(@Body('leadId') leadId: string) {
        if (!leadId) {
            throw new HttpException('leadId is required', HttpStatus.BAD_REQUEST);
        }
        await this.callerContext.invalidateCache(leadId);
        return { status: 'ok' };
    }
}