feat: add timer CRUD and DML helpers

client/src/db/crud/timerCrud.ts

@@ -1,5 +1,6 @@
+import { QueryResult } from "@tauri-apps/plugin-sql";
 import { getDb } from "@/db/initDb";
-import { SELECT_TIMERS, SELECT_TIMER } from "@/db/dml/timerDML";
+import { SELECT_TIMERS, SELECT_TIMER, INSERT_TIMER, UPDATE_TIMER, DELETE_TIMER } from "@/db/dml/timerDML";
 import { TimersRow, TimerRow } from "@/types/timerType";
 
 
@@ -9,8 +10,58 @@ export async function getTimers(): Promise<TimersRow[]> {
   return await db.select<TimersRow[]>(SELECT_TIMERS);
 }
 
-/* Получает таймер по его id **/
+/** Получает таймер по его id */
 export async function getTimer(TimerId: number): Promise<TimerRow> {
   const db = await getDb();
-  return await db.select<TimerRow>(SELECT_TIMER, [TimerId]);
+  const rows = await db.select<TimerRow[]>(SELECT_TIMER, [TimerId]);
+
+  if (!Array.isArray(rows) || rows.length === 0) {
+    throw new Error('Таймер не найден');
+  }
+
+  return rows[0];
+}
+
+/** Создаёт новый таймер */
+export async function createTimer(
+  title: string, 
+  pomodoroTime: number, 
+  breakTime: number, 
+  breakLongTime: number, 
+  countPomodoro: number
+): Promise<QueryResult> {
+  const db = await getDb();
+  return await db.execute(INSERT_TIMER, [
+    title, 
+    pomodoroTime, 
+    breakTime, 
+    breakLongTime, 
+    countPomodoro
+  ]);
+}
+
+/** Обновляет таймер */
+export async function updateTimer(
+  TimerId: number,
+  title: string,
+  pomodoroTime: number,
+  breakTime: number,
+  breakLongTime: number,
+  countPomodoro: number
+): Promise<QueryResult> {
+  const db = await getDb();
+  return await db.execute(UPDATE_TIMER, [
+    title,
+    pomodoroTime,
+    breakTime,
+    breakLongTime,
+    countPomodoro,
+    TimerId
+  ]);
+}
+
+/** Удаляет таймер */
+export async function deleteTimer(TimerId: number): Promise<QueryResult> {
+  const db = await getDb();
+  return await db.execute(DELETE_TIMER, [TimerId]);
 }