-- name: CreateProgram :one
INSERT INTO programs (
    course_id,
    title,
    description,
    thumbnail,
    display_order,
    is_active
)
VALUES ($1, $2, $3, $4, COALESCE($5, 0), COALESCE($6, true))
RETURNING *;


-- name: GetProgramsByCourse :many
SELECT
    COUNT(*) OVER () AS total_count,
    id,
    course_id,
    title,
    description,
    thumbnail,
    display_order,
    is_active
FROM programs
WHERE course_id = $1
ORDER BY display_order ASC;

-- name: UpdateProgramPartial :exec
UPDATE programs
SET
    title = COALESCE($1, title),
    description = COALESCE($2, description),
    thumbnail = COALESCE($3, thumbnail),
    display_order = COALESCE($4, display_order),
    is_active = COALESCE($5, is_active)
WHERE id = $6;

-- name: DeleteProgram :one
DELETE FROM programs
WHERE id = $1
RETURNING
    id,
    course_id,
    title,
    description,
    thumbnail,
    display_order,
    is_active;


-- name: GetProgramByID :one
SELECT
    id,
    course_id,
    title,
    description,
    thumbnail,
    display_order,
    is_active
FROM programs
WHERE id = $1;

-- name: ListProgramsByCourse :many
SELECT
    id,
    course_id,
    title,
    description,
    thumbnail,
    display_order,
    is_active
FROM programs
WHERE course_id = $1
  AND is_active = TRUE
ORDER BY display_order ASC, id ASC;

-- name: ListActivePrograms :many
SELECT
    id,
    course_id,
    title,
    description,
    thumbnail,
    display_order,
    is_active
FROM programs
WHERE is_active = TRUE
ORDER BY display_order ASC;

-- name: UpdateProgramFull :one
UPDATE programs
SET
    course_id = $2,
    title = $3,
    description = $4,
    thumbnail = $5,
    display_order = $6,
    is_active = $7
WHERE id = $1
RETURNING
    id,
    course_id,
    title,
    description,
    thumbnail,
    display_order,
    is_active;
    

-- name: DeactivateProgram :exec
UPDATE programs
SET is_active = FALSE
WHERE id = $1;