visionary-url/dist/visionary-url.js

A lightweight library for generating image URLs with baked-in blurhash placeholders.

var he = Object.defineProperty;
var pe = (r, n, o) => n in r ? he(r, n, { enumerable: !0, configurable: !0, writable: !0, value: o }) : r[n] = o;
var Y = (r, n, o) => pe(r, typeof n != "symbol" ? n + "" : n, o);
import { I as C, B as M, V as J, U, a as K, D as ge } from "./constants-DSuy6aJs.js";
var I = typeof globalThis < "u" ? globalThis : typeof window < "u" ? window : typeof global < "u" ? global : typeof self < "u" ? self : {}, _ = {}, Q = { exports: {} };
(function(r, n) {
  (function(o, a) {
    r.exports = a();
  })(typeof self < "u" ? self : typeof window < "u" ? window : I, function() {
    var o = "3.7.7", a = o, i = typeof Buffer == "function", f = typeof TextDecoder == "function" ? new TextDecoder() : void 0, d = typeof TextEncoder == "function" ? new TextEncoder() : void 0, m = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=", h = Array.prototype.slice.call(m), l = function(e) {
      var t = {};
      return e.forEach(function(s, c) {
        return t[s] = c;
      }), t;
    }(h), F = /^(?:[A-Za-z\d+\/]{4})*?(?:[A-Za-z\d+\/]{2}(?:==)?|[A-Za-z\d+\/]{3}=?)?$/, u = String.fromCharCode.bind(String), B = typeof Uint8Array.from == "function" ? Uint8Array.from.bind(Uint8Array) : function(e) {
      return new Uint8Array(Array.prototype.slice.call(e, 0));
    }, v = function(e) {
      return e.replace(/=/g, "").replace(/[+\/]/g, function(t) {
        return t == "+" ? "-" : "_";
      });
    }, x = function(e) {
      return e.replace(/[^A-Za-z0-9\+\/]/g, "");
    }, y = function(e) {
      for (var t, s, c, b, p = "", R = e.length % 3, D = 0; D < e.length; ) {
        if ((s = e.charCodeAt(D++)) > 255 || (c = e.charCodeAt(D++)) > 255 || (b = e.charCodeAt(D++)) > 255)
          throw new TypeError("invalid character found");
        t = s << 16 | c << 8 | b, p += h[t >> 18 & 63] + h[t >> 12 & 63] + h[t >> 6 & 63] + h[t & 63];
      }
      return R ? p.slice(0, R - 3) + "===".substring(R) : p;
    }, g = typeof btoa == "function" ? function(e) {
      return btoa(e);
    } : i ? function(e) {
      return Buffer.from(e, "binary").toString("base64");
    } : y, E = i ? function(e) {
      return Buffer.from(e).toString("base64");
    } : function(e) {
      for (var t = 4096, s = [], c = 0, b = e.length; c < b; c += t)
        s.push(u.apply(null, e.subarray(c, c + t)));
      return g(s.join(""));
    }, T = function(e, t) {
      return t === void 0 && (t = !1), t ? v(E(e)) : E(e);
    }, ie = function(e) {
      if (e.length < 2) {
        var t = e.charCodeAt(0);
        return t < 128 ? e : t < 2048 ? u(192 | t >>> 6) + u(128 | t & 63) : u(224 | t >>> 12 & 15) + u(128 | t >>> 6 & 63) + u(128 | t & 63);
      } else {
        var t = 65536 + (e.charCodeAt(0) - 55296) * 1024 + (e.charCodeAt(1) - 56320);
        return u(240 | t >>> 18 & 7) + u(128 | t >>> 12 & 63) + u(128 | t >>> 6 & 63) + u(128 | t & 63);
      }
    }, ue = /[\uD800-\uDBFF][\uDC00-\uDFFFF]|[^\x00-\x7F]/g, k = function(e) {
      return e.replace(ue, ie);
    }, z = i ? function(e) {
      return Buffer.from(e, "utf8").toString("base64");
    } : d ? function(e) {
      return E(d.encode(e));
    } : function(e) {
      return g(k(e));
    }, A = function(e, t) {
      return t === void 0 && (t = !1), t ? v(z(e)) : z(e);
    }, N = function(e) {
      return A(e, !0);
    }, se = /[\xC0-\xDF][\x80-\xBF]|[\xE0-\xEF][\x80-\xBF]{2}|[\xF0-\xF7][\x80-\xBF]{3}/g, fe = function(e) {
      switch (e.length) {
        case 4:
          var t = (7 & e.charCodeAt(0)) << 18 | (63 & e.charCodeAt(1)) << 12 | (63 & e.charCodeAt(2)) << 6 | 63 & e.charCodeAt(3), s = t - 65536;
          return u((s >>> 10) + 55296) + u((s & 1023) + 56320);
        case 3:
          return u((15 & e.charCodeAt(0)) << 12 | (63 & e.charCodeAt(1)) << 6 | 63 & e.charCodeAt(2));
        default:
          return u((31 & e.charCodeAt(0)) << 6 | 63 & e.charCodeAt(1));
      }
    }, P = function(e) {
      return e.replace(se, fe);
    }, V = function(e) {
      if (e = e.replace(/\s+/g, ""), !F.test(e))
        throw new TypeError("malformed base64.");
      e += "==".slice(2 - (e.length & 3));
      for (var t, s = "", c, b, p = 0; p < e.length; )
        t = l[e.charAt(p++)] << 18 | l[e.charAt(p++)] << 12 | (c = l[e.charAt(p++)]) << 6 | (b = l[e.charAt(p++)]), s += c === 64 ? u(t >> 16 & 255) : b === 64 ? u(t >> 16 & 255, t >> 8 & 255) : u(t >> 16 & 255, t >> 8 & 255, t & 255);
      return s;
    }, S = typeof atob == "function" ? function(e) {
      return atob(x(e));
    } : i ? function(e) {
      return Buffer.from(e, "base64").toString("binary");
    } : V, W = i ? function(e) {
      return B(Buffer.from(e, "base64"));
    } : function(e) {
      return B(S(e).split("").map(function(t) {
        return t.charCodeAt(0);
      }));
    }, Z = function(e) {
      return W($(e));
    }, le = i ? function(e) {
      return Buffer.from(e, "base64").toString("utf8");
    } : f ? function(e) {
      return f.decode(W(e));
    } : function(e) {
      return P(S(e));
    }, $ = function(e) {
      return x(e.replace(/[-_]/g, function(t) {
        return t == "-" ? "+" : "/";
      }));
    }, O = function(e) {
      return le($(e));
    }, ce = function(e) {
      if (typeof e != "string")
        return !1;
      var t = e.replace(/\s+/g, "").replace(/={0,2}$/, "");
      return !/[^\s0-9a-zA-Z\+/]/.test(t) || !/[^\s0-9a-zA-Z\-_]/.test(t);
    }, G = function(e) {
      return {
        value: e,
        enumerable: !1,
        writable: !0,
        configurable: !0
      };
    }, H = function() {
      var e = function(t, s) {
        return Object.defineProperty(String.prototype, t, G(s));
      };
      e("fromBase64", function() {
        return O(this);
      }), e("toBase64", function(t) {
        return A(this, t);
      }), e("toBase64URI", function() {
        return A(this, !0);
      }), e("toBase64URL", function() {
        return A(this, !0);
      }), e("toUint8Array", function() {
        return Z(this);
      });
    }, X = function() {
      var e = function(t, s) {
        return Object.defineProperty(Uint8Array.prototype, t, G(s));
      };
      e("toBase64", function(t) {
        return T(this, t);
      }), e("toBase64URI", function() {
        return T(this, !0);
      }), e("toBase64URL", function() {
        return T(this, !0);
      });
    }, de = function() {
      H(), X();
    }, w = {
      version: o,
      VERSION: a,
      atob: S,
      atobPolyfill: V,
      btoa: g,
      btoaPolyfill: y,
      fromBase64: O,
      toBase64: A,
      encode: A,
      encodeURI: N,
      encodeURL: N,
      utob: k,
      btou: P,
      decode: O,
      isValid: ce,
      fromUint8Array: T,
      toUint8Array: Z,
      extendString: H,
      extendUint8Array: X,
      extendBuiltins: de
    };
    return w.Base64 = {}, Object.keys(w).forEach(function(e) {
      return w.Base64[e] = w[e];
    }), w;
  });
})(Q);
var be = Q.exports;
Object.defineProperty(_, "__esModule", { value: !0 });
var ee = _.decodeBase64Url = te = _.encodeBase64Url = void 0;
const re = be, me = (r) => {
  if (typeof r != "string")
    throw new Error("encodeBase64Url: input must be a string");
  return (0, re.encode)(r).replace(/\+/g, "-").replace(/\//g, "_").replace(/=+$/, "");
};
var te = _.encodeBase64Url = me;
const ve = (r) => {
  if (typeof r != "string")
    throw new Error("decodeBase64Url: input must be a string");
  return (0, re.decode)(r.replace(/-/g, "+").replace(/_/g, "/"));
};
ee = _.decodeBase64Url = ve;
const xe = (r) => r.filter(Boolean), q = (r) => {
  try {
    return new URL(r);
  } catch {
    return null;
  }
}, Se = (r) => {
  switch (r) {
    case C.AVIF:
      return { contentType: "image/avif", extension: "avif" };
    case C.JPEG:
      return { contentType: "image/jpeg", extension: "jpg" };
    case C.WEBP:
      return { contentType: "image/webp", extension: "webp" };
    default:
      throw new Error(`formatToContentType: unknown format ${r}`);
  }
}, j = (r = "") => /^[A-Za-z0-9_-]*$/.test(r), Oe = (r, n) => {
  const o = r / n, a = M;
  let i = M;
  return o >= 1.6 && (i = 3), [a, i];
}, ye = (r) => {
  const { altText: n, bcc: o, blurhash: a, blurhashX: i, blurhashY: f, sourceHeight: d, sourceWidth: m, url: h } = r;
  if (!h || !m || !d)
    return new Error("Cannot construct visionary code: missing required url/width/height");
  const l = [h, m, d];
  return !o || (l.push(o), !a || !i || !f) || (l.push(a, i, f), n && n.length && l.push(n)), L(l);
}, L = (r) => te(r.join(J)), ne = (r) => {
  if (typeof r != "string")
    return null;
  const n = r.trim();
  if (!n.length || !j(n))
    return null;
  const o = ee(n);
  if (!o)
    return null;
  const a = o.split(J);
  if (a.length < 3)
    return null;
  const [i, f, d, m, h, l, F, u] = a, B = i.trim();
  if (!B.length)
    return console.error("Cannot parse code, empty file id"), null;
  const v = Number(f.trim()), x = Number(d.trim());
  if (isNaN(v) || isNaN(x) || !v || !x)
    return console.error("Cannot parse Visionary Code: invalid image dimensions", f, d), null;
  const y = Number(l) ?? 0, g = Number(F) ?? 0;
  return y < 1 || g < 1 ? (console.error(
    "Cannot parse Visionary Code: invalid blurhash x, y component dimensions",
    y,
    g
  ), null) : {
    altText: u,
    bcc: m,
    blurhash: h,
    blurhashX: y,
    blurhashY: g,
    sourceHeight: x,
    sourceWidth: v,
    url: B
  };
};
class Ae extends Error {
  constructor() {
    super(...arguments);
    Y(this, "message", "invalid endpoint URL (does it contain http/https?)");
  }
}
const Ue = (r) => r === U.DEBUG, Be = (r) => r === U.DOWNLOAD, we = (r) => r === U.FOLLOW, Ce = (r) => Object.values(C).includes(r), oe = (r) => Object.values(K).includes(r), ae = (r = []) => {
  const n = {};
  for (const o of r)
    oe(o) ? n.size = K[o] : Ue(o) ? n.debug = !0 : Be(o) ? n.download = !0 : we(o) ? n.follow = !0 : Ce(o) && (n.format = o);
  return n;
}, _e = (r) => {
  if (!r || typeof r != "object")
    return null;
  const n = [];
  return r.debug && n.push(U.DEBUG), r.download && n.push(U.DOWNLOAD), r.follow && n.push(U.FOLLOW), r.format && r.format !== C.AUTO && n.push(r.format), r.size && oe(r.size) && n.push(r.size), n.length ? n.sort().join(",") : null;
}, Re = (r = "") => ae(r.split(",")), Ie = (r) => {
  if (j(r)) {
    const o = ne(r);
    if (o)
      return {
        fields: o,
        options: {}
      };
  }
  return Ee(r);
}, Ee = (r) => {
  if (!r)
    return null;
  const n = r.trim();
  if (!n)
    return null;
  try {
    const o = Te(n);
    if (!o)
      return null;
    const { code: a, optionTokens: i } = o, f = ne(a);
    if (!f)
      return null;
    const d = ae(i);
    return {
      fields: f,
      options: d
    };
  } catch (o) {
    o instanceof Error ? console.error(`Error parsing URL: ${o.message}`, o) : console.error("uncaught error", o);
  }
  return null;
}, Le = (r, n) => {
  const o = ye(r);
  if (o instanceof Error)
    return null;
  let a = null;
  if (n != null && n.endpoint && (a = q(n == null ? void 0 : n.endpoint), !a))
    throw new Ae(
      "Cannot construct URL: bad endpoint. Ensure endpoint starts with http:// or https://"
    );
  a || (a = q(ge));
  const i = [a.origin, "image", o], f = n ? _e(n) : null;
  return f && i.push(f), n != null && n.filename ? i.push(n.filename) : i.push("image.jpg"), i.join("/");
}, Te = (r) => {
  try {
    const n = new URL(r), o = xe(n.pathname.split("/"));
    if (o[0] !== "image" || ![3, 4].includes(o.length))
      throw new Error("Unrecognized URL");
    const a = o[1].trim();
    if (!a.length || !j(a))
      throw new Error("URL is not formatted as base64url");
    if (o.length === 4) {
      const i = o[2].split(",");
      return {
        code: a,
        optionTokens: i
      };
    }
    if (o.length === 3)
      return {
        code: a,
        optionTokens: []
      };
  } catch {
    return null;
  }
  return null;
};
export {
  C as ImageFormatToken,
  K as ImageSizeToken,
  U as UrlOptionToken,
  Se as formatToContentType,
  ye as generateVisionaryCode,
  Le as generateVisionaryUrl,
  j as isBase64UrlEncoded,
  Ue as isDebugToken,
  Be as isDownloadToken,
  we as isFollowToken,
  Ce as isImageFormatToken,
  oe as isImageSizeToken,
  Re as parseOptionsString,
  ne as parseVisionaryCode,
  Ie as parseVisionaryString,
  Ee as parseVisionaryUrl,
  Oe as suggestedBlurhashComponentDimensions
};