"use strict";
(function (e, a) {
  "object" === typeof exports && "undefined" !== typeof module
    ? (module.exports = a())
    : "function" === typeof define && define.amd
    ? define(a)
    : ((e = "undefined" !== typeof globalThis ? globalThis : e || self),
      (e.QrScanner = a()));
})(this, function () {
  class e {
    constructor(a, b, c, d, f) {
      this._legacyCanvasSize = e.DEFAULT_CANVAS_SIZE;
      this._preferredCamera = "environment";
      this._maxScansPerSecond = 25;
      this._lastScanTimestamp = -1;
      this._destroyed = this._flashOn = this._paused = this._active = !1;
      this.$video = a;
      this.$canvas = document.createElement("canvas");
      c && "object" === typeof c
        ? (this._onDecode = b)
        : (c || d || f
            ? console.warn(
                "You're using a deprecated version of the QrScanner constructor which will be removed in the future"
              )
            : console.warn(
                "Note that the type of the scan result passed to onDecode will change in the future. To already switch to the new api today, you can pass returnDetailedScanResult: true."
              ),
          (this._legacyOnDecode = b));
      b = "object" === typeof c ? c : {};
      this._onDecodeError =
        b.onDecodeError || ("function" === typeof c ? c : this._onDecodeError);
      this._calculateScanRegion =
        b.calculateScanRegion ||
        ("function" === typeof d ? d : this._calculateScanRegion);
      this._preferredCamera = b.preferredCamera || f || this._preferredCamera;
      this._legacyCanvasSize =
        "number" === typeof c
          ? c
          : "number" === typeof d
          ? d
          : this._legacyCanvasSize;
      this._maxScansPerSecond = b.maxScansPerSecond || this._maxScansPerSecond;
      this._onPlay = this._onPlay.bind(this);
      this._onLoadedMetaData = this._onLoadedMetaData.bind(this);
      this._onVisibilityChange = this._onVisibilityChange.bind(this);
      this._updateOverlay = this._updateOverlay.bind(this);
      a.disablePictureInPicture = !0;
      a.playsInline = !0;
      a.muted = !0;
      let h = !1;
      a.hidden && ((a.hidden = !1), (h = !0));
      document.body.contains(a) || (document.body.appendChild(a), (h = !0));
      c = a.parentElement;
      if (b.highlightScanRegion || b.highlightCodeOutline) {
        d = !!b.overlay;
        this.$overlay = b.overlay || document.createElement("div");
        f = this.$overlay.style;
        f.position = "absolute";
        f.display = "none";
        f.pointerEvents = "none";
        this.$overlay.classList.add("scan-region-highlight");
        if (!d && b.highlightScanRegion) {
          this.$overlay.innerHTML =
            '<svg class="scan-region-highlight-svg" viewBox="0 0 238 238" preserveAspectRatio="none" style="position:absolute;width:100%;height:100%;left:0;top:0;fill:none;stroke:#e9b213;stroke-width:4;stroke-linecap:round;stroke-linejoin:round"><path d="M31 2H10a8 8 0 0 0-8 8v21M207 2h21a8 8 0 0 1 8 8v21m0 176v21a8 8 0 0 1-8 8h-21m-176 0H10a8 8 0 0 1-8-8v-21"/></svg>';
          try {
            this.$overlay.firstElementChild.animate(
              { transform: ["scale(.98)", "scale(1.01)"] },
              {
                duration: 400,
                iterations: Infinity,
                direction: "alternate",
                easing: "ease-in-out",
              }
            );
          } catch (m) {}
          c.insertBefore(this.$overlay, this.$video.nextSibling);
        }
        b.highlightCodeOutline &&
          (this.$overlay.insertAdjacentHTML(
            "beforeend",
            '<svg class="code-outline-highlight" preserveAspectRatio="none" style="display:none;width:100%;height:100%;fill:none;stroke:#e9b213;stroke-width:5;stroke-dasharray:25;stroke-linecap:round;stroke-linejoin:round"><polygon/></svg>'
          ),
          (this.$codeOutlineHighlight = this.$overlay.lastElementChild));
      }
      this._scanRegion = this._calculateScanRegion(a);
      requestAnimationFrame(() => {
        let m = window.getComputedStyle(a);
        "none" === m.display &&
          (a.style.setProperty("display", "block", "important"), (h = !0));
        "visible" !== m.visibility &&
          (a.style.setProperty("visibility", "visible", "important"), (h = !0));
        h &&
          (console.warn(
            "QrScanner has overwritten the video hiding style to avoid Safari stopping the playback."
          ),
          (a.style.opacity = "0"),
          (a.style.width = "0"),
          (a.style.height = "0"),
          this.$overlay &&
            this.$overlay.parentElement &&
            this.$overlay.parentElement.removeChild(this.$overlay),
          delete this.$overlay,
          delete this.$codeOutlineHighlight);
        this.$overlay && this._updateOverlay();
      });
      a.addEventListener("play", this._onPlay);
      a.addEventListener("loadedmetadata", this._onLoadedMetaData);
      document.addEventListener("visibilitychange", this._onVisibilityChange);
      window.addEventListener("resize", this._updateOverlay);
      this._qrEnginePromise = e.createQrEngine();
    }
    static set WORKER_PATH(a) {
      console.warn(
        "Setting QrScanner.WORKER_PATH is not required and not supported anymore. Have a look at the README for new setup instructions."
      );
    }
    static async hasCamera() {
      try {
        return !!(await e.listCameras(!1)).length;
      } catch (a) {
        return !1;
      }
    }
    static async listCameras(a = !1) {
      if (!navigator.mediaDevices) return [];
      let b = async () =>
          (await navigator.mediaDevices.enumerateDevices()).filter(
            (d) => "videoinput" === d.kind
          ),
        c;
      try {
        a &&
          (await b()).every((d) => !d.label) &&
          (c = await navigator.mediaDevices.getUserMedia({
            audio: !1,
            video: !0,
          }));
      } catch (d) {}
      try {
        return (await b()).map((d, f) => ({
          id: d.deviceId,
          label: d.label || (0 === f ? "Default Camera" : `Camera ${f + 1}`),
        }));
      } finally {
        c &&
          (console.warn(
            "Call listCameras after successfully starting a QR scanner to avoid creating a temporary video stream"
          ),
          e._stopVideoStream(c));
      }
    }
    async hasFlash() {
      let a;
      try {
        if (this.$video.srcObject) {
          if (!(this.$video.srcObject instanceof MediaStream)) return !1;
          a = this.$video.srcObject;
        } else a = (await this._getCameraStream()).stream;
        return "torch" in a.getVideoTracks()[0].getSettings();
      } catch (b) {
        return !1;
      } finally {
        a &&
          a !== this.$video.srcObject &&
          (console.warn(
            "Call hasFlash after successfully starting the scanner to avoid creating a temporary video stream"
          ),
          e._stopVideoStream(a));
      }
    }
    isFlashOn() {
      return this._flashOn;
    }
    async toggleFlash() {
      this._flashOn ? await this.turnFlashOff() : await this.turnFlashOn();
    }
    async turnFlashOn() {
      if (
        !this._flashOn &&
        !this._destroyed &&
        ((this._flashOn = !0), this._active && !this._paused)
      )
        try {
          if (!(await this.hasFlash())) throw "No flash available";
          await this.$video.srcObject
            .getVideoTracks()[0]
            .applyConstraints({ advanced: [{ torch: !0 }] });
        } catch (a) {
          throw ((this._flashOn = !1), a);
        }
    }
    async turnFlashOff() {
      this._flashOn && ((this._flashOn = !1), await this._restartVideoStream());
    }
    destroy() {
      this.$video.removeEventListener("loadedmetadata", this._onLoadedMetaData);
      this.$video.removeEventListener("play", this._onPlay);
      document.removeEventListener(
        "visibilitychange",
        this._onVisibilityChange
      );
      window.removeEventListener("resize", this._updateOverlay);
      this._destroyed = !0;
      this._flashOn = !1;
      this.stop();
      e._postWorkerMessage(this._qrEnginePromise, "close");
    }
    async start() {
      if (this._destroyed)
        throw Error(
          "The QR scanner can not be started as it had been destroyed."
        );
      if (!this._active || this._paused)
        if (
          ("https:" !== window.location.protocol &&
            console.warn(
              "The camera stream is only accessible if the page is transferred via https."
            ),
          (this._active = !0),
          !document.hidden)
        )
          if (((this._paused = !1), this.$video.srcObject))
            await this.$video.play();
          else
            try {
              let { stream: a, facingMode: b } = await this._getCameraStream();
              !this._active || this._paused
                ? e._stopVideoStream(a)
                : (this._setVideoMirror(b),
                  (this.$video.srcObject = a),
                  await this.$video.play(),
                  this._flashOn &&
                    ((this._flashOn = !1), this.turnFlashOn().catch(() => {})));
            } catch (a) {
              if (!this._paused) throw ((this._active = !1), a);
            }
    }
    stop() {
      this.pause();
      this._active = !1;
    }
    async pause(a = !1) {
      this._paused = !0;
      if (!this._active) return !0;
      this.$video.pause();
      this.$overlay && (this.$overlay.style.display = "none");
      let b = () => {
        this.$video.srcObject instanceof MediaStream &&
          (e._stopVideoStream(this.$video.srcObject),
          (this.$video.srcObject = null));
      };
      if (a) return b(), !0;
      await new Promise((c) => setTimeout(c, 300));
      if (!this._paused) return !1;
      b();
      return !0;
    }
    async setCamera(a) {
      a !== this._preferredCamera &&
        ((this._preferredCamera = a), await this._restartVideoStream());
    }
    static async scanImage(a, b, c, d, f = !1, h = !1) {
      let m,
        n = !1;
      b &&
      ("scanRegion" in b ||
        "qrEngine" in b ||
        "canvas" in b ||
        "disallowCanvasResizing" in b ||
        "alsoTryWithoutScanRegion" in b ||
        "returnDetailedScanResult" in b)
        ? ((m = b.scanRegion),
          (c = b.qrEngine),
          (d = b.canvas),
          (f = b.disallowCanvasResizing || !1),
          (h = b.alsoTryWithoutScanRegion || !1),
          (n = !0))
        : b || c || d || f || h
        ? console.warn(
            "You're using a deprecated api for scanImage which will be removed in the future."
          )
        : console.warn(
            "Note that the return type of scanImage will change in the future. To already switch to the new api today, you can pass returnDetailedScanResult: true."
          );
      b = !!c;
      try {
        let p, k;
        [c, p] = await Promise.all([c || e.createQrEngine(), e._loadImage(a)]);
        [d, k] = e._drawToCanvas(p, m, d, f);
        let q;
        if (c instanceof Worker) {
          let g = c;
          b || e._postWorkerMessageSync(g, "inversionMode", "both");
          q = await new Promise((l, v) => {
            let w,
              u,
              r,
              y = -1;
            u = (t) => {
              t.data.id === y &&
                (g.removeEventListener("message", u),
                g.removeEventListener("error", r),
                clearTimeout(w),
                null !== t.data.data
                  ? l({
                      data: t.data.data,
                      cornerPoints: e._convertPoints(t.data.cornerPoints, m),
                    })
                  : v(e.NO_QR_CODE_FOUND));
            };
            r = (t) => {
              g.removeEventListener("message", u);
              g.removeEventListener("error", r);
              clearTimeout(w);
              v("Scanner error: " + (t ? t.message || t : "Unknown Error"));
            };
            g.addEventListener("message", u);
            g.addEventListener("error", r);
            w = setTimeout(() => r("timeout"), 1e4);
            let x = k.getImageData(0, 0, d.width, d.height);
            y = e._postWorkerMessageSync(g, "decode", x, [x.data.buffer]);
          });
        } else
          q = await Promise.race([
            new Promise((g, l) =>
              window.setTimeout(() => l("Scanner error: timeout"), 1e4)
            ),
            (async () => {
              try {
                var [g] = await c.detect(d);
                if (!g) throw e.NO_QR_CODE_FOUND;
                return {
                  data: g.rawValue,
                  cornerPoints: e._convertPoints(g.cornerPoints, m),
                };
              } catch (l) {
                g = l.message || l;
                if (/not implemented|service unavailable/.test(g))
                  return (
                    (e._disableBarcodeDetector = !0),
                    e.scanImage(a, {
                      scanRegion: m,
                      canvas: d,
                      disallowCanvasResizing: f,
                      alsoTryWithoutScanRegion: h,
                    })
                  );
                throw `Scanner error: ${g}`;
              }
            })(),
          ]);
        return n ? q : q.data;
      } catch (p) {
        if (!m || !h) throw p;
        let k = await e.scanImage(a, {
          qrEngine: c,
          canvas: d,
          disallowCanvasResizing: f,
        });
        return n ? k : k.data;
      } finally {
        b || e._postWorkerMessage(c, "close");
      }
    }
    setGrayscaleWeights(a, b, c, d = !0) {
      e._postWorkerMessage(this._qrEnginePromise, "grayscaleWeights", {
        red: a,
        green: b,
        blue: c,
        useIntegerApproximation: d,
      });
    }
    setInversionMode(a) {
      e._postWorkerMessage(this._qrEnginePromise, "inversionMode", a);
    }
    static async createQrEngine(a) {
      a &&
        console.warn(
          "Specifying a worker path is not required and not supported anymore."
        );
      a = () =>
        import("./qr-scanner-worker.min.js").then((c) => c.createWorker());
      if (
        !(
          !e._disableBarcodeDetector &&
          "BarcodeDetector" in window &&
          BarcodeDetector.getSupportedFormats &&
          (await BarcodeDetector.getSupportedFormats()).includes("qr_code")
        )
      )
        return a();
      let b = navigator.userAgentData;
      return b &&
        b.brands.some(({ brand: c }) => /Chromium/i.test(c)) &&
        /mac ?OS/i.test(b.platform) &&
        (await b
          .getHighEntropyValues(["architecture", "platformVersion"])
          .then(
            ({ architecture: c, platformVersion: d }) =>
              /arm/i.test(c || "arm") && 13 <= parseInt(d || "13")
          )
          .catch(() => !0))
        ? a()
        : new BarcodeDetector({ formats: ["qr_code"] });
    }
    _onPlay() {
      this._scanRegion = this._calculateScanRegion(this.$video);
      this._updateOverlay();
      this.$overlay && (this.$overlay.style.display = "");
      this._scanFrame();
    }
    _onLoadedMetaData() {
      this._scanRegion = this._calculateScanRegion(this.$video);
      this._updateOverlay();
    }
    _onVisibilityChange() {
      document.hidden ? this.pause() : this._active && this.start();
    }
    _calculateScanRegion(a) {
      let b = Math.round((2 / 3) * Math.min(a.videoWidth, a.videoHeight));
      return {
        x: Math.round((a.videoWidth - b) / 2),
        y: Math.round((a.videoHeight - b) / 2),
        width: b,
        height: b,
        downScaledWidth: this._legacyCanvasSize,
        downScaledHeight: this._legacyCanvasSize,
      };
    }
    _updateOverlay() {
      requestAnimationFrame(() => {
        if (this.$overlay) {
          var a = this.$video,
            b = a.videoWidth,
            c = a.videoHeight,
            d = a.offsetWidth,
            f = a.offsetHeight,
            h = a.offsetLeft,
            m = a.offsetTop,
            n = window.getComputedStyle(a),
            p = n.objectFit,
            k = b / c,
            q = d / f;
          switch (p) {
            case "none":
              var g = b;
              var l = c;
              break;
            case "fill":
              g = d;
              l = f;
              break;
            default:
              ("cover" === p ? k > q : k < q)
                ? ((l = f), (g = l * k))
                : ((g = d), (l = g / k)),
                "scale-down" === p &&
                  ((g = Math.min(g, b)), (l = Math.min(l, c)));
          }
          var [v, w] = n.objectPosition.split(" ").map((r, y) => {
            const x = parseFloat(r);
            return r.endsWith("%") ? ((y ? f - l : d - g) * x) / 100 : x;
          });
          n = this._scanRegion.width || b;
          q = this._scanRegion.height || c;
          p = this._scanRegion.x || 0;
          var u = this._scanRegion.y || 0;
          k = this.$overlay.style;
          k.width = `${(n / b) * g}px`;
          k.height = `${(q / c) * l}px`;
          k.top = `${m + w + (u / c) * l}px`;
          c = /scaleX\(-1\)/.test(a.style.transform);
          k.left = `${
            h + (c ? d - v - g : v) + ((c ? b - p - n : p) / b) * g
          }px`;
          k.transform = a.style.transform;
        }
      });
    }
    static _convertPoints(a, b) {
      if (!b) return a;
      let c = b.x || 0,
        d = b.y || 0,
        f = b.width && b.downScaledWidth ? b.width / b.downScaledWidth : 1;
      b = b.height && b.downScaledHeight ? b.height / b.downScaledHeight : 1;
      for (let h of a) (h.x = h.x * f + c), (h.y = h.y * b + d);
      return a;
    }
    _scanFrame() {
      !this._active ||
        this.$video.paused ||
        this.$video.ended ||
        ("requestVideoFrameCallback" in this.$video
          ? this.$video.requestVideoFrameCallback.bind(this.$video)
          : requestAnimationFrame)(async () => {
          if (!(1 >= this.$video.readyState)) {
            var a = Date.now() - this._lastScanTimestamp,
              b = 1e3 / this._maxScansPerSecond;
            a < b && (await new Promise((d) => setTimeout(d, b - a)));
            this._lastScanTimestamp = Date.now();
            try {
              var c = await e.scanImage(this.$video, {
                scanRegion: this._scanRegion,
                qrEngine: this._qrEnginePromise,
                canvas: this.$canvas,
              });
            } catch (d) {
              if (!this._active) return;
              this._onDecodeError(d);
            }
            !e._disableBarcodeDetector ||
              (await this._qrEnginePromise) instanceof Worker ||
              (this._qrEnginePromise = e.createQrEngine());
            c
              ? (this._onDecode
                  ? this._onDecode(c)
                  : this._legacyOnDecode && this._legacyOnDecode(c.data),
                this.$codeOutlineHighlight &&
                  (clearTimeout(this._codeOutlineHighlightRemovalTimeout),
                  (this._codeOutlineHighlightRemovalTimeout = void 0),
                  this.$codeOutlineHighlight.setAttribute(
                    "viewBox",
                    `${this._scanRegion.x || 0} ` +
                      `${this._scanRegion.y || 0} ` +
                      `${this._scanRegion.width || this.$video.videoWidth} ` +
                      `${this._scanRegion.height || this.$video.videoHeight}`
                  ),
                  this.$codeOutlineHighlight.firstElementChild.setAttribute(
                    "points",
                    c.cornerPoints
                      .map(({ x: d, y: f }) => `${d},${f}`)
                      .join(" ")
                  ),
                  (this.$codeOutlineHighlight.style.display = "")))
              : this.$codeOutlineHighlight &&
                !this._codeOutlineHighlightRemovalTimeout &&
                (this._codeOutlineHighlightRemovalTimeout = setTimeout(
                  () => (this.$codeOutlineHighlight.style.display = "none"),
                  100
                ));
          }
          this._scanFrame();
        });
    }
    _onDecodeError(a) {
      a !== e.NO_QR_CODE_FOUND && console.log(a);
    }
    async _getCameraStream() {
      if (!navigator.mediaDevices) throw "Camera not found.";
      let a = /^(environment|user)$/.test(this._preferredCamera)
          ? "facingMode"
          : "deviceId",
        b = [{ width: { min: 1024 } }, { width: { min: 768 } }, {}],
        c = b.map((d) =>
          Object.assign({}, d, { [a]: { exact: this._preferredCamera } })
        );
      for (let d of [...c, ...b])
        try {
          let f = await navigator.mediaDevices.getUserMedia({
              video: d,
              audio: !1,
            }),
            h =
              this._getFacingMode(f) ||
              (d.facingMode
                ? this._preferredCamera
                : "environment" === this._preferredCamera
                ? "user"
                : "environment");
          return { stream: f, facingMode: h };
        } catch (f) {}
      throw "Camera not found.";
    }
    async _restartVideoStream() {
      let a = this._paused;
      (await this.pause(!0)) && !a && this._active && (await this.start());
    }
    static _stopVideoStream(a) {
      for (let b of a.getTracks()) b.stop(), a.removeTrack(b);
    }
    _setVideoMirror(a) {
      this.$video.style.transform = "scaleX(" + ("user" === a ? -1 : 1) + ")";
    }
    _getFacingMode(a) {
      return (a = a.getVideoTracks()[0])
        ? /rear|back|environment/i.test(a.label)
          ? "environment"
          : /front|user|face/i.test(a.label)
          ? "user"
          : null
        : null;
    }
    static _drawToCanvas(a, b, c, d = !1) {
      c = c || document.createElement("canvas");
      let f = b && b.x ? b.x : 0,
        h = b && b.y ? b.y : 0,
        m = b && b.width ? b.width : a.videoWidth || a.width,
        n = b && b.height ? b.height : a.videoHeight || a.height;
      d ||
        ((d = b && b.downScaledWidth ? b.downScaledWidth : m),
        (b = b && b.downScaledHeight ? b.downScaledHeight : n),
        c.width !== d && (c.width = d),
        c.height !== b && (c.height = b));
      b = c.getContext("2d", { alpha: !1 });
      b.imageSmoothingEnabled = !1;
      b.drawImage(a, f, h, m, n, 0, 0, c.width, c.height);
      return [c, b];
    }
    static async _loadImage(a) {
      if (a instanceof Image) return await e._awaitImageLoad(a), a;
      if (
        a instanceof HTMLVideoElement ||
        a instanceof HTMLCanvasElement ||
        a instanceof SVGImageElement ||
        ("OffscreenCanvas" in window && a instanceof OffscreenCanvas) ||
        ("ImageBitmap" in window && a instanceof ImageBitmap)
      )
        return a;
      if (
        a instanceof File ||
        a instanceof Blob ||
        a instanceof URL ||
        "string" === typeof a
      ) {
        let b = new Image();
        b.src =
          a instanceof File || a instanceof Blob
            ? URL.createObjectURL(a)
            : a.toString();
        try {
          return await e._awaitImageLoad(b), b;
        } finally {
          (a instanceof File || a instanceof Blob) &&
            URL.revokeObjectURL(b.src);
        }
      } else throw "Unsupported image type.";
    }
    static async _awaitImageLoad(a) {
      (a.complete && 0 !== a.naturalWidth) ||
        (await new Promise((b, c) => {
          let d = (f) => {
            a.removeEventListener("load", d);
            a.removeEventListener("error", d);
            f instanceof ErrorEvent ? c("Image load error") : b();
          };
          a.addEventListener("load", d);
          a.addEventListener("error", d);
        }));
    }
    static async _postWorkerMessage(a, b, c, d) {
      return e._postWorkerMessageSync(await a, b, c, d);
    }
    static _postWorkerMessageSync(a, b, c, d) {
      if (!(a instanceof Worker)) return -1;
      let f = e._workerMessageId++;
      a.postMessage({ id: f, type: b, data: c }, d);
      return f;
    }
  }
  e.DEFAULT_CANVAS_SIZE = 400;
  e.NO_QR_CODE_FOUND = "No QR code found";
  e._disableBarcodeDetector = !1;
  e._workerMessageId = 0;
  return e;
});
//# sourceMappingURL=qr-scanner.umd.min.js.map