wip files

internal/db/sql/files.sql

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+-- name: GetFile :one
+SELECT *
+FROM files
+WHERE id = ? LIMIT 1;
+
+-- name: GetFileByPathAndSession :one
+SELECT *
+FROM files
+WHERE path = ? AND session_id = ? LIMIT 1;
+
+-- name: ListFilesBySession :many
+SELECT *
+FROM files
+WHERE session_id = ?
+ORDER BY created_at ASC;
+
+-- name: ListFilesByPath :many
+SELECT *
+FROM files
+WHERE path = ?
+ORDER BY created_at DESC;
+
+-- name: CreateFile :one
+INSERT INTO files (
+    id,
+    session_id,
+    path,
+    content,
+    version,
+    created_at,
+    updated_at
+) VALUES (
+    ?, ?, ?, ?, ?, strftime('%s', 'now'), strftime('%s', 'now')
+)
+RETURNING *;
+
+-- name: UpdateFile :one
+UPDATE files
+SET
+    content = ?,
+    version = ?,
+    updated_at = strftime('%s', 'now')
+WHERE id = ?
+RETURNING *;
+
+-- name: DeleteFile :exec
+DELETE FROM files
+WHERE id = ?;
+
+-- name: DeleteSessionFiles :exec
+DELETE FROM files
+WHERE session_id = ?;
+
+-- name: ListLatestSessionFiles :many
+SELECT f.*
+FROM files f
+INNER JOIN (
+    SELECT path, MAX(created_at) as max_created_at
+    FROM files
+    GROUP BY path
+) latest ON f.path = latest.path AND f.created_at = latest.max_created_at
+WHERE f.session_id = ?
+ORDER BY f.path;
+
+-- name: ListNewFiles :many
+SELECT *
+FROM files
+WHERE is_new = 1
+ORDER BY created_at DESC;