1 files changed, 339 insertions, 0 deletions
diff --git a/src/lib/utils.ts b/src/lib/utils.ts
new file mode 100644
index 00000000..d6238842
--- /dev/null
+++ b/src/lib/utils.ts
@@ -0,0 +1,339 @@
+import { browser } from "$app/environment";
+import { toast } from "@zerodevx/svelte-toast";
+import { goto } from "$app/navigation";
+import { PUBLIC_COINOS_URL } from "$env/static/public";
+import { page } from "$app/stores";
+import { get as getStore } from "svelte/store";
+
+export function scroll(section) {
+  if (getStore(page).url.pathname !== "/") goto("/");
+  setTimeout(() => section.scrollIntoView({ behavior: "smooth" }), 500);
+}
+
+let base = browser ? "" : PUBLIC_COINOS_URL;
+
+export let punk = (k) =>
+  Math.floor((parseInt(k.slice(-2), 16) / 256) * 64) + 1 + ".webp";
+
+export let g = (url, fetch, headers) =>
+  fetch(base + url, { headers })
+    .then((r) => r.text())
+    .then((body) => {
+      try {
+        return JSON.parse(body);
+      } catch (e) {
+        throw new Error(body);
+      }
+    });
+
+export let get = (url, headers = {}) => {
+  return fetch(base + url, { headers })
+    .then(async (r) => {
+      if (r.ok) return r.text();
+      throw new Error(await r.text());
+    })
+    .then((body) => {
+      try {
+        return JSON.parse(body);
+      } catch (e) {
+        return body;
+      }
+    });
+};
+
+export let post = async (url, body, headers) => {
+  headers = {
+    "content-type": "application/json",
+    accept: "application/json",
+    ...headers,
+  };
+
+  let response = await fetch(base + url, {
+    method: "POST",
+    body: JSON.stringify(body),
+    headers,
+  })
+    .then(async (r) => {
+      if (r.ok) return r.text();
+      let text = await r.text();
+
+      let message;
+      try {
+        ({ message } = JSON.parse(text));
+      } catch (e) {}
+
+      if (message) throw new Error(message);
+      throw new Error(text);
+    })
+    .then((body) => {
+      try {
+        body = JSON.parse(body);
+      } catch (e) {
+        throw new Error(body);
+      }
+
+      if (body.error instanceof Error) throw body.error;
+      if (body instanceof Error) throw body;
+      if (body.name === "Error") throw new Error(body.message);
+
+      return body;
+    });
+
+  return response;
+};
+
+export let copy = (text) => {
+  navigator.clipboard.writeText(text);
+  success("Copied!");
+};
+
+export let copyNoNewlines = (text) => {
+  let stripped = text.replace(/\n/g, " ").replace(/\s+/g, " ");
+  navigator.clipboard.writeText(stripped);
+  success("Copied!");
+};
+
+export function reverseFormat(val, locale) {
+  let parts = new Intl.NumberFormat(locale).formatToParts(1111.1);
+  let group = parts.find((part) => part.type === "group").value;
+  let decimal = parts.find((part) => part.type === "decimal").value;
+  let reversedVal = val.replace(new RegExp("\\" + group, "g"), "");
+  reversedVal = reversedVal.replace(new RegExp("\\" + decimal, "g"), ".");
+  return Number.isNaN(reversedVal) ? 0 : +reversedVal;
+}
+
+export let protectedRoutes = [/customers/, /settings/, /payments/];
+
+let recent = [];
+export let success = (m, clear = true) => {
+  if (recent.includes(m)) return;
+  recent.push(m);
+  setTimeout(() => (recent = []), 5000);
+  if (clear) toast.pop();
+  toast.push(m, {
+    theme: {
+      "--toastBarBackground": "#F5F7FA",
+    },
+  });
+};
+
+export let warning = (m, clear = true) => {
+  if (clear) toast.pop();
+  toast.push(m, {
+    theme: {
+      "--toastBarBackground": "#FFCE22",
+    },
+  });
+};
+export let fail = (m, clear = true) => {
+  if (clear) toast.pop();
+  toast.push(m, {
+    theme: {
+      "--toastBarBackground": "#E93535",
+    },
+  });
+};
+export let info = (m) => {
+  toast.pop();
+  toast.push(m, {
+    theme: {
+      "--toastBarBackground": "white",
+    },
+  });
+};
+
+export let login = async (user, cookies, ip) => {
+  let maxAge = 380 * 24 * 60 * 60;
+
+  let res = await fetch(base + "/login", {
+    method: "POST",
+    body: JSON.stringify(user),
+    headers: {
+      "content-type": "application/json",
+      accept: "application/json",
+      "cf-connecting-ip": ip,
+    },
+  });
+  if (res.status === 401) {
+    let text = await res.text();
+    if (text.startsWith("2fa")) throw new Error("2fa");
+  }
+
+  let { user: u, token } = await res.json();
+  if (!token) throw new Error("Login failed");
+
+  let expires = new Date();
+  expires.setSeconds(expires.getSeconds() + maxAge);
+
+  let opts = { path: "/", expires };
+  if (u.language) cookies.set("lang", u.language, opts);
+  cookies.set("username", user.username, opts);
+  cookies.set("token", token, opts);
+};
+
+export let auth = (cookies) => ({
+  authorization: `Bearer ${cookies.get("token")}`,
+});
+
+export let btc = (fiat, rate) => Math.round((fiat * sats) / rate);
+export let fiat = (amount, rate) => (amount * rate) / sats;
+export let fd = async (req) => {
+  let obj = Object.fromEntries(await req.formData());
+  for (let k in obj)
+    (obj[k] === "undefined" && (obj[k] = undefined)) ||
+      (obj[k] === "false" && (obj[k] = false));
+  return obj;
+};
+
+export let f = (s, currency) => {
+  try {
+    return new Intl.NumberFormat("en-US", {
+      style: "currency",
+      currency,
+    })
+      .format(s)
+      .replace("CA", "");
+  } catch (e) {
+    return "";
+  }
+};
+
+export let s = (s) =>
+  new Intl.NumberFormat("en-US", { maximumFractionDigits: 0 }).format(s);
+
+export let sat = (s) => {
+  s = Math.abs(s);
+  let p = Math.floor(Math.log(s) / Math.LN10 + 0.000000001);
+  let d = Math.floor((p + 1) / 3);
+
+  return (
+    "⚡️" +
+    (parseInt(s) > 0
+      ? new Intl.NumberFormat("en-US", { maximumFractionDigits: 2 }).format(
+          s / Math.pow(1000, d)
+        ) + ["", "K", "M", "G", "T", "P", "E", "Z"][d]
+      : 0
+    ).toString()
+  );
+};
+
+export let sats = 100000000;
+
+export let back = () =>
+  browser && (history.length ? history.go(-1) : goto("/"));
+
+export let focus = (el) =>
+  browser && screen.width > 1280 && setTimeout(() => el.focus(), 1);
+
+export let select = (el) =>
+  browser && screen.width > 1280 && setTimeout(() => el.select(), 1);
+
+export let sleep = (n) => new Promise((r) => setTimeout(r, n));
+export let wait = async (f, n = 100, s = 300) => {
+  let i = 0;
+  while (!(await f()) && i < s) (await sleep(n)) && i++;
+  if (i >= s) throw new Error("timeout");
+  return f();
+};
+
+export let stretch = async (password, salt) =>
+  crypto.subtle.deriveKey(
+    {
+      name: "PBKDF2",
+      salt,
+      iterations: 100000,
+      hash: "SHA-256",
+    },
+    await crypto.subtle.importKey(
+      "raw",
+      new TextEncoder().encode(password),
+      { name: "PBKDF2" },
+      false,
+      ["deriveBits", "deriveKey"]
+    ),
+    { name: "AES-GCM", length: 256 },
+    true,
+    ["encrypt", "decrypt"]
+  );
+
+function get_bigrams(string) {
+  var s = string.toLowerCase();
+  var v = s.split("");
+  for (var i = 0; i < v.length; i++) {
+    v[i] = s.slice(i, i + 2);
+  }
+  return v;
+}
+
+export function ss(str1, str2) {
+  if (str1.length > 0 && str2.length > 0) {
+    var pairs1 = get_bigrams(str1);
+    var pairs2 = get_bigrams(str2);
+    var union = pairs1.length + pairs2.length;
+    var hits = 0;
+    for (var x = 0; x < pairs1.length; x++) {
+      for (var y = 0; y < pairs2.length; y++) {
+        if (pairs1[x] == pairs2[y]) hit_count++;
+      }
+    }
+    if (hits > 0) return (2.0 * hits) / union;
+  }
+
+  return 0.0;
+}
+
+export let types = {
+  bitcoin: "bitcoin",
+  liquid: "liquid",
+  lightning: "lightning",
+  internal: "internal",
+  fund: "fund",
+  ecash: "ecash",
+};
+
+export let ease = (t) =>
+  t < 0.5 ? 8 * t * t * t * t : 1 - 8 * --t * t * t * t;
+
+export function shuffleArray(array) {
+  for (let i = array.length - 1; i > 0; i--) {
+    const j = Math.floor(Math.random() * (i + 1));
+    [array[i], array[j]] = [array[j], array[i]];
+  }
+}
+
+export let closest = (a, n) =>
+  a.reduce((prev, curr) =>
+    Math.abs(curr - n) < Math.abs(prev - n) ? curr : prev
+  );
+
+export let isLiquid = (text) =>
+  text.startsWith("Az") ||
+  text.startsWith("lq1") ||
+  text.startsWith("VJL") ||
+  text.startsWith("VT") ||
+  text.startsWith("XR") ||
+  text.startsWith("XC") ||
+  ((text.startsWith("H") || text.startsWith("G") || text.startsWith("Q")) &&
+    text.length === 34) ||
+  (text.startsWith("ert1q") && text.length === 43) ||
+  (text.startsWith("ex1q") && text.length === 42) ||
+  text.startsWith("el1qq") ||
+  text.startsWith("lq1qq");
+
+export function getCookie(name) {
+  let nameEQ = name + "=";
+  let ca = document.cookie.split(";");
+  for (let i = 0; i < ca.length; i++) {
+    let c = ca[i];
+    while (c.charAt(0) === " ") c = c.substring(1);
+    if (c.indexOf(nameEQ) === 0) return c.substring(nameEQ.length, c.length);
+  }
+  return null;
+}
+
+export function setCookie(name, value, seconds) {
+  const now = new Date();
+  now.setTime(now.getTime() + seconds * 1000);
+  const expires = "expires=" + now.toUTCString();
+  document.cookie = name + "=" + value + ";" + expires + ";path=/";
+}