-- name: GetFile :one
SELECT * FROM files
WHERE id = $1 LIMIT 1;

-- name: ListFiles :many
SELECT * FROM files
WHERE parent_file_id IS NULL
ORDER BY is_folder DESC, created_at DESC;

-- name: ListFolders :many
SELECT * FROM files
WHERE is_folder = true
ORDER BY created_at DESC;

-- name: ListFilesByID :many
SELECT * FROM files
WHERE id = ANY($1::text[])
ORDER BY created_at DESC;

-- name: CreateFile :one
INSERT INTO files (name, mime_type, size, storage_key, checksum, created_at, updated_at)
VALUES ($1, $2, $3, $4, $5, CURRENT_TIMESTAMP, CURRENT_TIMESTAMP)
RETURNING *;

-- name: CreateFolder :one
INSERT INTO files (name, is_folder, created_at, updated_at)
VALUES ($1, true, CURRENT_TIMESTAMP, CURRENT_TIMESTAMP)
RETURNING *;

-- name: ListFilesByParentID :many
SELECT * FROM files
WHERE parent_file_id = $1
ORDER BY is_folder DESC, created_at DESC;

-- name: MoveFiles :exec
UPDATE files
SET parent_file_id = $1, updated_at = CURRENT_TIMESTAMP
WHERE id = ANY($2::text[]);

-- name: UpdateFile :exec
UPDATE files
SET name = $1, mime_type = $2, ocr_text = $3, updated_at = CURRENT_TIMESTAMP
WHERE id = $4;

-- name: DeleteFile :exec
DELETE FROM files
WHERE id = $1;

-- name: FindDuplicatesByNameSize :many
SELECT id, name, mime_type, size, checksum, created_at FROM files
WHERE name = $1 AND size = $2 AND is_folder = false
ORDER BY created_at DESC;

-- name: FindDuplicateByChecksum :one
SELECT * FROM files
WHERE checksum = $1 AND is_folder = false
LIMIT 1;