fixe chat message

src/app/services/functions/file.service.ts

@@ -169,9 +169,85 @@ export class FileService {
   }
 
 
+  
+
+  getFileFromDeviceBase64(types: typeof FileType[]) {
+    const input = this.fileLoaderService.createInput({
+      accept: types
+    })
+
+    return new Promise((resolve, reject)=>{
+      input.onchange = async () => {
+        const file = this.fileLoaderService.getFirstFile(input)
+
+        resolve(await this.getBase64(file));
+      };
+    })
+  }
+
+
+  getBase64(file) {
+    return new Promise((resolve, reject) => {
+      var reader = new FileReader();
+      reader.readAsDataURL(file);
+      reader.onload = function () {
+        resolve(reader.result)
+      };
+      reader.onerror = function (error) {
+        console.log('Error: ', error);
+      };
+    })
+
+ }
+ 
+
   viewDocumentByUrl(url) {
     const browser = this.iab.create(url,"_parent");
     browser.show();
   }
 
+
+  blobToBase64 = blob => {
+    const reader = new FileReader();
+    reader.readAsDataURL(blob);
+    return new Promise(resolve => {
+      reader.onloadend = () => {
+        resolve(reader.result);
+      };
+    });
+  }
+
+
+  base64toBlob(base64Data, contentType) {
+    contentType = contentType || '';
+    var sliceSize = 1024;
+    var byteCharacters = atob(base64Data);
+    var bytesLength = byteCharacters.length;
+    var slicesCount = Math.ceil(bytesLength / sliceSize);
+    var byteArrays = new Array(slicesCount);
+
+    for (var sliceIndex = 0; sliceIndex < slicesCount; ++sliceIndex) {
+      var begin = sliceIndex * sliceSize;
+      var end = Math.min(begin + sliceSize, bytesLength);
+
+      var bytes = new Array(end - begin);
+      for (var offset = begin, i = 0; offset < end; ++i, ++offset) {
+        bytes[i] = byteCharacters[offset].charCodeAt(0);
+      }
+      byteArrays[sliceIndex] = new Uint8Array(bytes);
+    }
+    return new Blob(byteArrays, { type: contentType });
+  }
+
+
+  base64StringToBlob(base64Data) {
+    return new Promise((resolve, reject) => {
+
+      fetch(base64Data)
+      .then(res => resolve(res.blob()))
+      .then(console.log)
+
+    })
+  }
+
 }