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

package dbgen

import (
	"context"

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

const CreateCourse = `-- name: CreateCourse :one
INSERT INTO courses (
    category_id,
    title,
    description,
    is_active
)
VALUES (
    $1, -- category_id
    $2, -- title
    $3, -- description
    $4  -- is_active
)
RETURNING
    id,
    category_id,
    title,
    description,
    is_active
`

type CreateCourseParams struct {
	CategoryID  int64       `json:"category_id"`
	Title       string      `json:"title"`
	Description pgtype.Text `json:"description"`
	IsActive    bool        `json:"is_active"`
}

func (q *Queries) CreateCourse(ctx context.Context, arg CreateCourseParams) (Course, error) {
	row := q.db.QueryRow(ctx, CreateCourse,
		arg.CategoryID,
		arg.Title,
		arg.Description,
		arg.IsActive,
	)
	var i Course
	err := row.Scan(
		&i.ID,
		&i.CategoryID,
		&i.Title,
		&i.Description,
		&i.IsActive,
	)
	return i, err
}

const DeactivateCourse = `-- name: DeactivateCourse :exec
UPDATE courses
SET is_active = FALSE
WHERE id = $1
`

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

const GetCourseByID = `-- name: GetCourseByID :one
SELECT
    id,
    category_id,
    title,
    description,
    is_active
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.CategoryID,
		&i.Title,
		&i.Description,
		&i.IsActive,
	)
	return i, err
}

const ListActiveCourses = `-- name: ListActiveCourses :many
SELECT
    id,
    category_id,
    title,
    description,
    is_active
FROM courses
WHERE is_active = TRUE
ORDER BY id DESC
`

func (q *Queries) ListActiveCourses(ctx context.Context) ([]Course, error) {
	rows, err := q.db.Query(ctx, ListActiveCourses)
	if err != nil {
		return nil, err
	}
	defer rows.Close()
	var items []Course
	for rows.Next() {
		var i Course
		if err := rows.Scan(
			&i.ID,
			&i.CategoryID,
			&i.Title,
			&i.Description,
			&i.IsActive,
		); err != nil {
			return nil, err
		}
		items = append(items, i)
	}
	if err := rows.Err(); err != nil {
		return nil, err
	}
	return items, nil
}

const ListCoursesByCategory = `-- name: ListCoursesByCategory :many
SELECT
    id,
    category_id,
    title,
    description,
    is_active
FROM courses
WHERE category_id = $1
  AND is_active = TRUE
ORDER BY id DESC
`

func (q *Queries) ListCoursesByCategory(ctx context.Context, categoryID int64) ([]Course, error) {
	rows, err := q.db.Query(ctx, ListCoursesByCategory, categoryID)
	if err != nil {
		return nil, err
	}
	defer rows.Close()
	var items []Course
	for rows.Next() {
		var i Course
		if err := rows.Scan(
			&i.ID,
			&i.CategoryID,
			&i.Title,
			&i.Description,
			&i.IsActive,
		); 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
    category_id = $2,
    title = $3,
    description = $4,
    is_active = $5
WHERE id = $1
RETURNING
    id,
    category_id,
    title,
    description,
    is_active
`

type UpdateCourseParams struct {
	ID          int64       `json:"id"`
	CategoryID  int64       `json:"category_id"`
	Title       string      `json:"title"`
	Description pgtype.Text `json:"description"`
	IsActive    bool        `json:"is_active"`
}

func (q *Queries) UpdateCourse(ctx context.Context, arg UpdateCourseParams) (Course, error) {
	row := q.db.QueryRow(ctx, UpdateCourse,
		arg.ID,
		arg.CategoryID,
		arg.Title,
		arg.Description,
		arg.IsActive,
	)
	var i Course
	err := row.Scan(
		&i.ID,
		&i.CategoryID,
		&i.Title,
		&i.Description,
		&i.IsActive,
	)
	return i, err
}