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import { TRPCError } from "@trpc/server";
import { and, eq } from "drizzle-orm";
import { z } from "zod";
import { rssFeedsTable } from "@karakeep/db/schema";
import {
zFeedSchema,
zNewFeedSchema,
zUpdateFeedSchema,
} from "@karakeep/shared/types/feeds";
import { AuthedContext } from "..";
import { PrivacyAware } from "./privacy";
export class Feed implements PrivacyAware {
constructor(
protected ctx: AuthedContext,
private feed: typeof rssFeedsTable.$inferSelect,
) {}
static async fromId(ctx: AuthedContext, id: string): Promise<Feed> {
const feed = await ctx.db.query.rssFeedsTable.findFirst({
where: eq(rssFeedsTable.id, id),
});
if (!feed) {
throw new TRPCError({
code: "NOT_FOUND",
message: "Feed not found",
});
}
// If it exists but belongs to another user, throw forbidden error
if (feed.userId !== ctx.user.id) {
throw new TRPCError({
code: "FORBIDDEN",
message: "User is not allowed to access resource",
});
}
return new Feed(ctx, feed);
}
static async create(
ctx: AuthedContext,
input: z.infer<typeof zNewFeedSchema>,
): Promise<Feed> {
const [result] = await ctx.db
.insert(rssFeedsTable)
.values({
name: input.name,
url: input.url,
userId: ctx.user.id,
enabled: input.enabled,
importTags: input.importTags ?? false,
})
.returning();
return new Feed(ctx, result);
}
static async getAll(ctx: AuthedContext): Promise<Feed[]> {
const feeds = await ctx.db.query.rssFeedsTable.findMany({
where: eq(rssFeedsTable.userId, ctx.user.id),
});
return feeds.map((f) => new Feed(ctx, f));
}
ensureCanAccess(ctx: AuthedContext): void {
if (this.feed.userId !== ctx.user.id) {
throw new TRPCError({
code: "FORBIDDEN",
message: "User is not allowed to access resource",
});
}
}
async delete(): Promise<void> {
const res = await this.ctx.db
.delete(rssFeedsTable)
.where(
and(
eq(rssFeedsTable.id, this.feed.id),
eq(rssFeedsTable.userId, this.ctx.user.id),
),
);
if (res.changes === 0) {
throw new TRPCError({ code: "NOT_FOUND" });
}
}
async update(input: z.infer<typeof zUpdateFeedSchema>): Promise<void> {
const result = await this.ctx.db
.update(rssFeedsTable)
.set({
name: input.name,
url: input.url,
enabled: input.enabled,
importTags: input.importTags,
})
.where(
and(
eq(rssFeedsTable.id, this.feed.id),
eq(rssFeedsTable.userId, this.ctx.user.id),
),
)
.returning();
if (result.length === 0) {
throw new TRPCError({ code: "NOT_FOUND" });
}
this.feed = result[0];
}
asPublicFeed(): z.infer<typeof zFeedSchema> {
return this.feed;
}
}
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