Restructure omni services and add Chatwoot research snapshot

research/chatwoot/app/javascript/dashboard/mixins/fileUploadMixin.js

@@ -0,0 +1,111 @@
+import { mapGetters } from 'vuex';
+import { useAlert } from 'dashboard/composables';
+import { checkFileSizeLimit } from 'shared/helpers/FileHelper';
+import { getMaxUploadSizeByChannel } from '@chatwoot/utils';
+import { DirectUpload } from 'activestorage';
+import {
+  DEFAULT_MAXIMUM_FILE_UPLOAD_SIZE,
+  resolveMaximumFileUploadSize,
+} from 'shared/helpers/FileHelper';
+import { INBOX_TYPES } from 'dashboard/helper/inbox';
+
+export default {
+  computed: {
+    ...mapGetters({
+      accountId: 'getCurrentAccountId',
+    }),
+    installationLimit() {
+      return resolveMaximumFileUploadSize(
+        this.globalConfig.maximumFileUploadSize
+      );
+    },
+  },
+
+  methods: {
+    maxSizeFor(mime) {
+      // Use default/installation limit for private notes
+      if (this.isOnPrivateNote) {
+        return this.installationLimit;
+      }
+
+      const channelType = this.inbox?.channel_type;
+
+      if (!channelType || channelType === INBOX_TYPES.WEB) {
+        return this.installationLimit;
+      }
+
+      const channelLimit = getMaxUploadSizeByChannel({
+        channelType,
+        medium: this.inbox?.medium, // e.g. 'sms' | 'whatsapp'
+        mime, // e.g. 'image/png'
+      });
+
+      if (channelLimit === DEFAULT_MAXIMUM_FILE_UPLOAD_SIZE) {
+        return this.installationLimit;
+      }
+
+      return Math.min(channelLimit, this.installationLimit);
+    },
+    alertOverLimit(maxSizeMB) {
+      useAlert(
+        this.$t('CONVERSATION.FILE_SIZE_LIMIT', {
+          MAXIMUM_SUPPORTED_FILE_UPLOAD_SIZE: maxSizeMB,
+        })
+      );
+    },
+    onFileUpload(file) {
+      if (this.globalConfig.directUploadsEnabled) {
+        this.onDirectFileUpload(file);
+      } else {
+        this.onIndirectFileUpload(file);
+      }
+    },
+
+    onDirectFileUpload(file) {
+      if (!file) return;
+
+      const mime = file.file?.type || file.type;
+      const maxSizeMB = this.maxSizeFor(mime);
+
+      if (!checkFileSizeLimit(file, maxSizeMB)) {
+        this.alertOverLimit(maxSizeMB);
+        return;
+      }
+
+      const upload = new DirectUpload(
+        file.file,
+        `/api/v1/accounts/${this.accountId}/conversations/${this.currentChat.id}/direct_uploads`,
+        {
+          directUploadWillCreateBlobWithXHR: xhr => {
+            xhr.setRequestHeader(
+              'api_access_token',
+              this.currentUser.access_token
+            );
+          },
+        }
+      );
+
+      upload.create((error, blob) => {
+        if (error) {
+          useAlert(error);
+        } else {
+          this.attachFile({ file, blob });
+        }
+      });
+    },
+
+    onIndirectFileUpload(file) {
+      if (!file) return;
+
+      const mime = file.file?.type || file.type;
+      const maxSizeMB = this.maxSizeFor(mime);
+
+      if (!checkFileSizeLimit(file, maxSizeMB)) {
+        this.alertOverLimit(maxSizeMB);
+        return;
+      }
+
+      this.attachFile({ file });
+    },
+  },
+};