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import { TodoEntity } from "./todo.entity";
import { RedisService } from "../redis/redis.service";
import type { RedisPipeline } from "../common/types/redis.types";
import { UserScopedRedisRepository } from "../common/repositories/user-scoped-redis.repository";
@Injectable()
export class TodoRepository extends UserScopedRedisRepository<TodoEntity> {
protected entityName = "todo";
constructor(redisService: RedisService) {
super(redisService);
}
protected serialize(todo: TodoEntity): Record<string, string> {
return {
id: todo.id,
title: todo.title,
description: todo.description || "",
completed: todo.completed.toString(),
priority: todo.priority,
categoryId: todo.categoryId,
dueDate: todo.dueDate.toISOString(),
createdAt: todo.createdAt.toISOString(),
updatedAt: todo.updatedAt.toISOString(),
userId: todo.userId,
};
}
protected deserialize(data: Record<string, string>): TodoEntity {
return new TodoEntity({
id: data.id,
title: data.title,
description: data.description,
completed: data.completed === "true",
priority: data.priority as "high" | "medium" | "low",
categoryId: data.categoryId || "default",
dueDate: new Date(data.dueDate),
createdAt: new Date(data.createdAt),
updatedAt: new Date(data.updatedAt),
userId: data.userId,
});
}
protected createEntity(data: Partial<TodoEntity>): TodoEntity {
return new TodoEntity(data);
}
protected updateEntity(
existing: TodoEntity,
updates: Partial<TodoEntity>,
): TodoEntity {
return new TodoEntity({
...existing,
...updates,
updatedAt: new Date(),
});
}
protected updateUserIndexes(
pipeline: RedisPipeline,
newTodo: TodoEntity,
oldTodo: TodoEntity | null,
): void {
const userId = newTodo.userId;
// 날짜별 인덱스
const dateKey = this.generateUserIndexKey(
userId,
"date",
newTodo.dueDate.toISOString().split("T")[0],
);
pipeline.sadd(dateKey, newTodo.id);
// 카테고리별 인덱스
const categoryKey = this.generateUserIndexKey(
userId,
"category",
newTodo.categoryId,
);
pipeline.sadd(categoryKey, newTodo.id);
// 완료 상태별 인덱스
const completedKey = this.generateUserIndexKey(
userId,
"completed",
newTodo.completed.toString(),
);
pipeline.sadd(completedKey, newTodo.id);
// 우선순위별 인덱스
const priorityKey = this.generateUserIndexKey(
userId,
"priority",
newTodo.priority,
);
pipeline.sadd(priorityKey, newTodo.id);
// 기존 인덱스에서 제거 (업데이트인 경우)
if (oldTodo) {
Iif (
oldTodo.dueDate.toISOString().split("T")[0] !==
newTodo.dueDate.toISOString().split("T")[0]
) {
const oldDateKey = this.generateUserIndexKey(
userId,
"date",
oldTodo.dueDate.toISOString().split("T")[0],
);
pipeline.srem(oldDateKey, newTodo.id);
}
Iif (oldTodo.categoryId !== newTodo.categoryId) {
const oldCategoryKey = this.generateUserIndexKey(
userId,
"category",
oldTodo.categoryId,
);
pipeline.srem(oldCategoryKey, newTodo.id);
}
if (oldTodo.completed !== newTodo.completed) {
const oldCompletedKey = this.generateUserIndexKey(
userId,
"completed",
oldTodo.completed.toString(),
);
pipeline.srem(oldCompletedKey, newTodo.id);
}
if (oldTodo.priority !== newTodo.priority) {
const oldPriorityKey = this.generateUserIndexKey(
userId,
"priority",
oldTodo.priority,
);
pipeline.srem(oldPriorityKey, newTodo.id);
}
}
}
protected removeUserEntityIndexes(
pipeline: RedisPipeline,
todo: TodoEntity,
): void {
const userId = todo.userId;
// 모든 인덱스에서 제거
const dateKey = this.generateUserIndexKey(
userId,
"date",
todo.dueDate.toISOString().split("T")[0],
);
const categoryKey = this.generateUserIndexKey(
userId,
"category",
todo.categoryId,
);
const completedKey = this.generateUserIndexKey(
userId,
"completed",
todo.completed.toString(),
);
const priorityKey = this.generateUserIndexKey(
userId,
"priority",
todo.priority,
);
pipeline.srem(dateKey, todo.id);
pipeline.srem(categoryKey, todo.id);
pipeline.srem(completedKey, todo.id);
pipeline.srem(priorityKey, todo.id);
}
protected async removeUserIndexes(
pipeline: RedisPipeline,
userId: string,
): Promise<void> {
// 사용자의 모든 인덱스 제거 (패턴 매칭 사용)
const pattern = this.redisService.generateKey(
this.entityName,
"user",
userId,
"index",
"*",
);
const keys = await this.redisService.keys(pattern);
keys.forEach((key) => {
pipeline.del(key);
});
}
// 특화된 검색 메서드들
async findByUserIdAndCategory(
userId: string,
categoryId: string,
): Promise<TodoEntity[]> {
const categoryKey = this.generateUserIndexKey(
userId,
"category",
categoryId,
);
const todoIds = await this.redisService.smembers(categoryKey);
return this.findByIds(todoIds);
}
async findByUserIdAndCompleted(
userId: string,
completed: boolean,
): Promise<TodoEntity[]> {
const completedKey = this.generateUserIndexKey(
userId,
"completed",
completed.toString(),
);
const todoIds = await this.redisService.smembers(completedKey);
return this.findByIds(todoIds);
}
async findByUserIdAndPriority(
userId: string,
priority: string,
): Promise<TodoEntity[]> {
const priorityKey = this.generateUserIndexKey(userId, "priority", priority);
const todoIds = await this.redisService.smembers(priorityKey);
return this.findByIds(todoIds);
}
async findByUserIdAndDate(userId: string, date: Date): Promise<TodoEntity[]> {
const dateKey = this.generateUserIndexKey(
userId,
"date",
date.toISOString().split("T")[0],
);
const todoIds = await this.redisService.smembers(dateKey);
return this.findByIds(todoIds);
}
async toggle(id: string): Promise<TodoEntity | null> {
const existing = await this.findById(id);
Iif (!existing) {
return null;
}
return this.update(id, { completed: !existing.completed });
}
async updateCategoryForUser(
userId: string,
oldCategoryId: string,
newCategoryId: string,
): Promise<number> {
const todos = await this.findByUserIdAndCategory(userId, oldCategoryId);
let updatedCount = 0;
// Pipeline을 사용하여 배치 업데이트
const pipeline = this.redisService.pipeline();
for (const todo of todos) {
const updated = this.updateEntity(todo, { categoryId: newCategoryId });
const key = this.generateKey(todo.id);
const serializedData = this.serialize(updated);
pipeline.hmset(key, serializedData);
// 인덱스 업데이트
this.updateUserIndexes(pipeline, updated, todo);
updatedCount++;
}
await pipeline.exec();
return updatedCount;
}
async countByUserIdAndCompleted(
userId: string,
completed: boolean,
): Promise<number> {
const completedKey = this.generateUserIndexKey(
userId,
"completed",
completed.toString(),
);
return await this.redisService.scard(completedKey);
}
// 통계를 위한 효율적인 카운트 메서드들
async getStatsForUser(userId: string): Promise<{
total: number;
completed: number;
incomplete: number;
byPriority: { high: number; medium: number; low: number };
}> {
const [total, completed, high, medium, low] = await Promise.all([
this.countByUserId(userId),
this.countByUserIdAndCompleted(userId, true),
this.countByUserIdAndPriority(userId, "high"),
this.countByUserIdAndPriority(userId, "medium"),
this.countByUserIdAndPriority(userId, "low"),
]);
return {
total,
completed,
incomplete: total - completed,
byPriority: { high, medium, low },
};
}
private async countByUserIdAndPriority(
userId: string,
priority: string,
): Promise<number> {
const priorityKey = this.generateUserIndexKey(userId, "priority", priority);
return await this.redisService.scard(priorityKey);
}
}
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