// Code generated by sqlc. DO NOT EDIT.
// versions:
//   sqlc v1.31.1
// source: comments.sql

package store

import (
	"context"
	"time"

	"github.com/google/uuid"
)

const createComment = `-- name: CreateComment :one
INSERT INTO comments
(post_id, parent_id, author_id, body)
SELECT $1, $2, $3, $4     -- creates a custom row here
WHERE $2::BIGINT IS NULL  -- stop here if parent comment
OR EXISTS (
    SELECT 1              -- discard, returns true if succeeds
    FROM comments
    WHERE id = $2::BIGINT --  check if the parent comment exists on the post
        AND post_id = $1
)
RETURNING id, post_id, parent_id, author_id, body, created_at, deleted_at
`

type CreateCommentParams struct {
	PostID   int64
	ParentID *int64
	AuthorID uuid.UUID
	Body     string
}

func (q *Queries) CreateComment(ctx context.Context, arg CreateCommentParams) (Comment, error) {
	row := q.db.QueryRow(ctx, createComment,
		arg.PostID,
		arg.ParentID,
		arg.AuthorID,
		arg.Body,
	)
	var i Comment
	err := row.Scan(
		&i.ID,
		&i.PostID,
		&i.ParentID,
		&i.AuthorID,
		&i.Body,
		&i.CreatedAt,
		&i.DeletedAt,
	)
	return i, err
}

const getCommentsByPost = `-- name: GetCommentsByPost :many
SELECT c.id, c.post_id, c.parent_id, c.author_id, c.body, c.created_at, c.deleted_at, u.username AS author_username
FROM comments c
JOIN users u ON u.id = c.author_id
WHERE c.post_id = $1
ORDER BY c.created_at DESC, c.id ASC
`

type GetCommentsByPostRow struct {
	ID             int64
	PostID         int64
	ParentID       *int64
	AuthorID       uuid.UUID
	Body           string
	CreatedAt      time.Time
	DeletedAt      *time.Time
	AuthorUsername string
}

func (q *Queries) GetCommentsByPost(ctx context.Context, postID int64) ([]GetCommentsByPostRow, error) {
	rows, err := q.db.Query(ctx, getCommentsByPost, postID)
	if err != nil {
		return nil, err
	}
	defer rows.Close()
	var items []GetCommentsByPostRow
	for rows.Next() {
		var i GetCommentsByPostRow
		if err := rows.Scan(
			&i.ID,
			&i.PostID,
			&i.ParentID,
			&i.AuthorID,
			&i.Body,
			&i.CreatedAt,
			&i.DeletedAt,
			&i.AuthorUsername,
		); err != nil {
			return nil, err
		}
		items = append(items, i)
	}
	if err := rows.Err(); err != nil {
		return nil, err
	}
	return items, nil
}