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import { SB1_FIN_INST, SB1_ID, SB1_REDIRECT_URI, SB1_SECRET } from "$env/static/private";
import { randomUUID } from "node:crypto";
import { db } from "../lib/server/db";
import { syncSession } from "../lib/server/db/schema";
import * as v from "valibot"
import { command, query } from "$app/server";
import { eq } from "drizzle-orm";
import { Temporal } from "temporal-polyfill";
export const createSb1SyncSessionAndReturnLoginUrl = command(async () => {
return createSb1Auth()
})
async function createSb1Auth() {
const state = randomUUID()
await db.insert(syncSession).values({
authzState: state
})
const authorizeUrl = new URL("https://api.sparebank1.no/oauth/authorize");
authorizeUrl.searchParams.set("client_id", SB1_ID);
authorizeUrl.searchParams.set("state", state);
authorizeUrl.searchParams.set("redirect_uri", SB1_REDIRECT_URI);
authorizeUrl.searchParams.set("finInst", SB1_FIN_INST);
authorizeUrl.searchParams.set("response_type", "code");
return authorizeUrl.toString()
}
export const getAccounts = query(async () => {
const token = await getSb1AccessToken()
if (!token) return undefined
const url = new URL(
"https://api.sparebank1.no/personal/banking/accounts",
);
const response = await fetch(url, {
headers: {
Authorization: `Bearer ${token}`
},
});
if (response.ok) {
return await response.json() as { accounts: Array<any> }
}
else console.error(await response.text())
})
export const getTransactions = query(v.string(), async (accountKey: string) => {
const token = await getSb1AccessToken()
if (token) return undefined
const url = new URL(
"https://api.sparebank1.no/personal/banking/transactions",
);
url.searchParams.set("accountKey", accountKey);
const response = await fetch(url, {
headers: {
Authorization: `Bearer ${token}`,
},
});
return (await response.json()) as TransactionsResponse;
})
async function getSb1AccessToken() {
const entity = await db.select({
tokens: syncSession.tokens
}).from(syncSession)
const { tokens } = entity[0]
if (!tokens) return null
const parsed = JSON.parse(tokens)
return parsed.access_token as string
}
export const clearTokens = query(async () => {
await db.delete(syncSession)
})
export const getTokenExpires = query(async () => {
const entity = await db.select({
refreshTokenCreated: syncSession.refreshTokenCreated,
accessTokenCreated: syncSession.accessTokenCreated,
tokens: syncSession.tokens
}).from(syncSession)
if (!entity[0]) return undefined
const { tokens, accessTokenCreated, refreshTokenCreated } = entity[0]
const tokensParsed = JSON.parse(tokens ?? "")
return {
accessToken: {
expires: tokensParsed?.expires_in ?? 0,
created: Temporal.Instant.fromEpochMilliseconds(Number(accessTokenCreated))
},
refreshToken: {
expires: tokensParsed?.refresh_token_expires_in ?? 0,
created: Temporal.Instant.fromEpochMilliseconds(Number(refreshTokenCreated))
},
}
})
type Sb1Tokens = {
access_token: string,
expires_in: number,
refresh_token_expires_in: number,
refresh_token_absolute_expires_in: number,
token_type: string,
refresh_token: string
}
type TokenAction = "Empty"
const auth = {
async ready(): Promise<boolean> {
const token = await this.tokenOrAction()
const ping = await fetch("https://developer.sparebank1.no/helloworld/ping", {
headers: {
"Authorization": "Bearer " + token
}
})
return ping.ok
},
async tokenOrAction(): Promise<TokenAction | string> {
const entity = await db.select({
refreshTokenCreated: syncSession.refreshTokenCreated,
accessTokenCreated: syncSession.accessTokenCreated,
tokens: syncSession.tokens
}).from(syncSession)
const { tokens, accessTokenCreated, refreshTokenCreated } = entity[0]
if (!tokens) return "Empty"
const json = JSON.parse(tokens) as Sb1Tokens
if (!Object.hasOwn(json, "access_token")) return TokenAction.Empty
return json.access_token
},
getAccessToken() { },
async getRefreshToken() {
const entity = await db.select({
tokens: syncSession.tokens,
id: syncSession.id
}).from(syncSession)
const { tokens, id } = entity[0]
if (!tokens) return null
const parsed = JSON.parse(tokens)
if (!parsed.refresh_token) throw new Error("No refresh token");
const fd = new URLSearchParams();
fd.set("client_id", SB1_ID);
fd.set("client_secret", SB1_SECRET);
fd.set("refresh_token", parsed.refresh_token);
fd.set("grant_type", "refresh_token");
const res = await fetch("https://api.sparebank1.no/oauth/token", {
headers: {
"Content-Type": "application/x-www-form-urlencoded",
},
method: "post",
body: fd,
});
const text = await res.text();
const epoch = Temporal.Now.instant().epochMilliseconds
await db.update(syncSession).set({ tokens: text, accessTokenCreated: epoch, refreshTokenCreated: epoch }).where(eq(syncSession.id, id))
}
}
export const refreshSB1Token = command(async () => {
auth.getRefreshToken()
});
export type Transaction = {
description: string;
amount: number;
date: string;
mcc: string;
}
export type TransactionsResponse = {
transactions: Array<Transaction>;
}
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