const log$b = new Logger("http"); class Http extends EventEmitter { async get({url: e, useIndexedDb: t=!1, timeout: r=15e3, key: n, isOutPutObjectURL: o=!0}) { if (Xverse$1.NO_CACHE !== void 0 && (t = !Xverse$1.NO_CACHE), t) if (isIndexedDbSupported()) { window.performance.now(); let a = null; try { a = await modelTable.query("url", e) } catch (s) { return log$b.debug(s), log$b.warn("cache query error", e), Promise.resolve(e) } if (a && a.model) { const s = dataURItoBlob(a.model) , l = Promise.resolve(o ? URL.createObjectURL(s) : s); return window.performance.now(), l } else return this.request({ url: e, timeout: r, contentType: "blob", key: n }).then(async s=>{ const l = await blobToDataURI(s.response); try { await modelTable.put({ url: e, model: l }) } catch (u) { log$b.warn("unable to add data to indexedDB", u) } return Promise.resolve(o ? URL.createObjectURL(s.response) : s.response) } ) } else return this.request({ url: e, timeout: r, contentType: "blob", key: n }).then(a=>{ const s = a.response; return Promise.resolve(o ? URL.createObjectURL(s) : s) } ).catch(a=>Promise.reject(a)); else return this.request({ url: e, timeout: r, key: n }).then(a=>a.getResponseHeader("content-type") === "application/json" ? Promise.resolve(JSON.parse(a.responseText)) : Promise.resolve(a.responseText)) } request(e) { const {timeout: t=3e4, contentType: r, key: n, onRequestStart: o} = e , {url: a} = e; return new Promise((s,l)=>{ window.performance.now(); const u = new XMLHttpRequest; r && (u.responseType = r), u.timeout = t, u.addEventListener("readystatechange", ()=>{ if (u.readyState == 4) { if (u.status == 200) return window.performance.now(), this.emit("loadend", { message: `request ${a} load success` }), s(u); { const c = `Unable to load the request ${a}`; return this.emit("error", { message: c }), log$b.error(c), l(c) } } } ), o && o(u), u.open("GET", a), u.send() } ) } } const http = new Http , isIndexedDbSupported = ()=>(window.indexedDB || window.mozIndexedDB || window.webkitIndexedDB || window.msIndexedDB) !== void 0 , blobToDataURI = async i=>new Promise((e,t)=>{ const r = new FileReader; r.readAsDataURL(i), r.onload = function(n) { var o; e((o = n.target) == null ? void 0 : o.result) } , r.onerror = function(n) { t(n) } } ) , dataURItoBlob = i=>{ let e; i.split(",")[0].indexOf("base64") >= 0 ? e = atob(i.split(",")[1]) : e = unescape(i.split(",")[1]); const t = i.split(",")[0].split(":")[1].split(";")[0] , r = new Uint8Array(e.length); for (let o = 0; o < e.length; o++) r[o] = e.charCodeAt(o); return new Blob([r],{ type: t }) } , urlMap = new Map , urlTransformer = async(i,e=!1)=>typeof i != "string" ? (console.warn("url transformer error", i), i) : i.startsWith("blob:") ? i : e ? http.get({ url: i, useIndexedDb: !0, key: "url", isOutPutObjectURL: !1 }) : urlMap.has(i) ? urlMap.get(i) : http.get({ url: i, useIndexedDb: !0, key: "url" }).then(t=>(urlMap.set(i, t), t));