// Code generated by sqlc. DO NOT EDIT.
// versions:
//   sqlc v1.30.0
// source: lms_courses.sql

package dbgen

import (
	"context"

	"github.com/jackc/pgx/v5/pgtype"
)

const CreateCourse = `-- name: CreateCourse :one
INSERT INTO courses (program_id, name, description, thumbnail)
VALUES ($1, $2, $3, $4)
RETURNING id, program_id, name, description, thumbnail, created_at, updated_at
`

type CreateCourseParams struct {
	ProgramID   int64       `json:"program_id"`
	Name        string      `json:"name"`
	Description pgtype.Text `json:"description"`
	Thumbnail   pgtype.Text `json:"thumbnail"`
}

func (q *Queries) CreateCourse(ctx context.Context, arg CreateCourseParams) (Course, error) {
	row := q.db.QueryRow(ctx, CreateCourse,
		arg.ProgramID,
		arg.Name,
		arg.Description,
		arg.Thumbnail,
	)
	var i Course
	err := row.Scan(
		&i.ID,
		&i.ProgramID,
		&i.Name,
		&i.Description,
		&i.Thumbnail,
		&i.CreatedAt,
		&i.UpdatedAt,
	)
	return i, err
}

const DeleteCourse = `-- name: DeleteCourse :exec
DELETE FROM courses
WHERE id = $1
`

func (q *Queries) DeleteCourse(ctx context.Context, id int64) error {
	_, err := q.db.Exec(ctx, DeleteCourse, id)
	return err
}

const GetCourseByID = `-- name: GetCourseByID :one
SELECT id, program_id, name, description, thumbnail, created_at, updated_at
FROM courses
WHERE id = $1
`

func (q *Queries) GetCourseByID(ctx context.Context, id int64) (Course, error) {
	row := q.db.QueryRow(ctx, GetCourseByID, id)
	var i Course
	err := row.Scan(
		&i.ID,
		&i.ProgramID,
		&i.Name,
		&i.Description,
		&i.Thumbnail,
		&i.CreatedAt,
		&i.UpdatedAt,
	)
	return i, err
}

const ListCoursesByProgramID = `-- name: ListCoursesByProgramID :many
SELECT
    COUNT(*) OVER () AS total_count,
    c.id,
    c.program_id,
    c.name,
    c.description,
    c.thumbnail,
    c.created_at,
    c.updated_at
FROM courses c
WHERE c.program_id = $1
ORDER BY c.created_at DESC
LIMIT $2 OFFSET $3
`

type ListCoursesByProgramIDParams struct {
	ProgramID int64 `json:"program_id"`
	Limit     int32 `json:"limit"`
	Offset    int32 `json:"offset"`
}

type ListCoursesByProgramIDRow struct {
	TotalCount  int64              `json:"total_count"`
	ID          int64              `json:"id"`
	ProgramID   int64              `json:"program_id"`
	Name        string             `json:"name"`
	Description pgtype.Text        `json:"description"`
	Thumbnail   pgtype.Text        `json:"thumbnail"`
	CreatedAt   pgtype.Timestamptz `json:"created_at"`
	UpdatedAt   pgtype.Timestamptz `json:"updated_at"`
}

func (q *Queries) ListCoursesByProgramID(ctx context.Context, arg ListCoursesByProgramIDParams) ([]ListCoursesByProgramIDRow, error) {
	rows, err := q.db.Query(ctx, ListCoursesByProgramID, arg.ProgramID, arg.Limit, arg.Offset)
	if err != nil {
		return nil, err
	}
	defer rows.Close()
	var items []ListCoursesByProgramIDRow
	for rows.Next() {
		var i ListCoursesByProgramIDRow
		if err := rows.Scan(
			&i.TotalCount,
			&i.ID,
			&i.ProgramID,
			&i.Name,
			&i.Description,
			&i.Thumbnail,
			&i.CreatedAt,
			&i.UpdatedAt,
		); err != nil {
			return nil, err
		}
		items = append(items, i)
	}
	if err := rows.Err(); err != nil {
		return nil, err
	}
	return items, nil
}

const UpdateCourse = `-- name: UpdateCourse :one
UPDATE courses
SET
    name = COALESCE($1::varchar, name),
    description = COALESCE($2::text, description),
    thumbnail = COALESCE($3::text, thumbnail),
    updated_at = CURRENT_TIMESTAMP
WHERE id = $4
RETURNING id, program_id, name, description, thumbnail, created_at, updated_at
`

type UpdateCourseParams struct {
	Name        pgtype.Text `json:"name"`
	Description pgtype.Text `json:"description"`
	Thumbnail   pgtype.Text `json:"thumbnail"`
	ID          int64       `json:"id"`
}

func (q *Queries) UpdateCourse(ctx context.Context, arg UpdateCourseParams) (Course, error) {
	row := q.db.QueryRow(ctx, UpdateCourse,
		arg.Name,
		arg.Description,
		arg.Thumbnail,
		arg.ID,
	)
	var i Course
	err := row.Scan(
		&i.ID,
		&i.ProgramID,
		&i.Name,
		&i.Description,
		&i.Thumbnail,
		&i.CreatedAt,
		&i.UpdatedAt,
	)
	return i, err
}