refactor(desktop): organize lib modules by domain

apps/desktop/src/lib/sql/sqlDiagnostics.ts

@@ -0,0 +1,44 @@
+export interface SqlErrorLocation {
+  line: number;
+  column: number;
+}
+
+function toZeroBased(value: string | undefined): number | null {
+  if (!value) return null;
+  const parsed = Number.parseInt(value, 10);
+  if (!Number.isFinite(parsed) || parsed < 1) return null;
+  return parsed - 1;
+}
+
+export function parseSqlErrorLocation(message: string): SqlErrorLocation | null {
+  const lineColumn = /\bline\s+(\d+)\s*[,:\s]\s*column\s+(\d+)\b/i.exec(message) ?? /\bline\s+(\d+)\b[\s\S]{0,80}?\bcol(?:umn)?\s+(\d+)\b/i.exec(message);
+  if (lineColumn) {
+    const line = toZeroBased(lineColumn[1]);
+    const column = toZeroBased(lineColumn[2]);
+    if (line != null && column != null) return { line, column };
+  }
+
+  const lines = message.split(/\r?\n/);
+  for (let index = 0; index < lines.length; index++) {
+    const lineMatch = /^LINE\s+(\d+):/i.exec(lines[index] ?? "");
+    if (!lineMatch) continue;
+    const caretLine = lines.slice(index + 1).find((line) => line.includes("^"));
+    const line = toZeroBased(lineMatch[1]);
+    const caretIndex = caretLine?.indexOf("^") ?? -1;
+    if (line != null && caretIndex >= 0) return { line, column: caretIndex };
+  }
+
+  return null;
+}
+
+export function lineColumnToOffset(sql: string, location: SqlErrorLocation): number | null {
+  const lines = sql.split(/\r?\n/);
+  if (location.line < 0 || location.line >= lines.length) return null;
+
+  let offset = 0;
+  for (let index = 0; index < location.line; index++) {
+    offset += lines[index].length + 1;
+  }
+
+  return Math.min(offset + location.column, offset + lines[location.line].length);
+}