package controllers

import (
	"context"
	"encoding/json"
	"queryorchestration/internal/document"
	"queryorchestration/internal/queue"

	"github.com/go-playground/validator/v10"

	"github.com/aws/aws-sdk-go-v2/aws"
	"github.com/aws/aws-sdk-go-v2/service/sqs/types"
	"github.com/google/uuid"
)

type QueryRunner struct {
	validator *validator.Validate
	document  *document.Service
}

func NewQueryRunner(svc *document.Service, validator *validator.Validate) QueryRunner {
	return QueryRunner{
		validator: validator,
		document:  svc,
	}
}

type DocumentQueryEvent struct {
	ID uuid.UUID `json:"id"`
}

func (s QueryRunner) Process(ctx context.Context, config *queue.Config, msg *types.Message) error {
	var body document.Document
	err := json.Unmarshal([]byte(*msg.Body), &body)
	if err != nil {
		return err
	}

	err = s.validator.Struct(body)
	if err != nil {
		return err
	}

	err = s.document.Sync(ctx, &body)
	if err != nil {
		return err
	}

	queryEvent := DocumentQueryEvent{
		ID: body.ID,
	}

	err = queue.Send(ctx, config, queryEvent, map[string]types.MessageAttributeValue{
		"type": {
			DataType:    aws.String("String"),
			StringValue: aws.String("DOCQUERY"),
		},
	})
	if err != nil {
		return err
	}

	return nil
}