package routes

import (
	"context"
	"encoding/binary"
	rest_api_stuff "enshi/REST_API_stuff"
	db_repo "enshi/db/go_queries"
	"enshi/db_connection"
	"enshi/middleware/getters"

	"github.com/gin-gonic/gin"
	"github.com/google/uuid"
)

func CreateComment(c *gin.Context) {
	var CommentParams db_repo.CreateCommentParams
	if err := c.BindJSON(&CommentParams); err != nil {
		rest_api_stuff.BadRequestAnswer(c, err)
		return
	}

	userId, err := getters.GetUserIdFromContext(c)
	if err != nil {
		rest_api_stuff.BadRequestAnswer(c, err)
		return
	}

	if commentId, err := uuid.NewV7(); err != nil {
		rest_api_stuff.InternalErrorAnswer(c, err)
		return
	} else {
		CommentParams.CommentID = -int64(binary.BigEndian.Uint64(commentId[8:]))
	}

	CommentParams.UserID = userId

	postId, err := getters.GetInt64Param(c, "post-id")
	if err != nil {
		rest_api_stuff.BadRequestAnswer(c, err)
		return
	}
	CommentParams.PostID = postId

	transaction, err := db_connection.Dbx.Begin(context.Background())
	if err != nil {
		rest_api_stuff.InternalErrorAnswer(c, err)
		return
	}
	defer transaction.Rollback(context.Background())

	_, err = db_repo.New(transaction).CreateComment(
		context.Background(),
		CommentParams,
	)

	if err != nil {
		rest_api_stuff.InternalErrorAnswer(c, err)
		return
	}

	transaction.Commit(context.Background())
	rest_api_stuff.OkAnswer(c, "comment has been created")
}