content CLI: add updateChannel command

cli/src/commands/content/createChannel.ts

@@ -48,9 +48,16 @@ export default class CreateChannelCommand extends ContentDirectoryCommandBase {
       channelMetadata.setAvatarPhoto(channelCreationParametersInput.meta.avatarPhoto!)
       channelMetadata.setCategory(channelCreationParametersInput.meta.category!)
 
+      const serialized = channelMetadata.serializeBinary();
+
+      const api = await this.getOriginalApi()
+      
+      const metaRaw = api.createType('Raw', serialized)
+      const meta = new Bytes(api.registry, metaRaw)
+
       let channelCreationParameters: ChannelCreationParameters = {
         assets: channelCreationParametersInput.assets,
-        meta: channelMetadata.serializeBinary() as Bytes,
+        meta,
         reward_account: channelCreationParametersInput.reward_account,
       }
 
@@ -61,7 +68,7 @@ export default class CreateChannelCommand extends ContentDirectoryCommandBase {
         saveOutputJson(output, `${channelCreationParametersInput.meta.title}Channel.json`, channelCreationParametersInput)
         this.log('Sending the extrinsic...')
 
-        await this.sendAndFollowNamedTx(currentAccount, 'content', 'createChannel', [actor, channelCreationParametersInput])
+        await this.sendAndFollowNamedTx(currentAccount, 'content', 'createChannel', [actor, channelCreationParameters])
 
       }
     } else {

cli/src/commands/content/updateChannel.ts

@@ -0,0 +1,89 @@
+import ContentDirectoryCommandBase from '../../base/ContentDirectoryCommandBase'
+import { IOFlags, getInputJson, saveOutputJson } from '../../helpers/InputOutput'
+import { NewAsset} from '@joystream/types/content'
+import {ChannelMetadata} from '@joystream/content-metadata-protobuf'
+import { Vec, Option} from '@polkadot/types';
+import AccountId from '@polkadot/types/generic/AccountId';
+import { Bytes, Raw } from '@polkadot/types/primitive';
+
+type ChannelUpdateParametersInput = {
+  assets: Option<Vec<NewAsset>>,
+  new_meta: ChannelMetadata.AsObject,
+  reward_account: Option<AccountId>,
+}
+
+type ChannelUpdateParameters = {
+  assets: Option<Vec<NewAsset>>,
+  new_meta: Bytes,
+  reward_account: Option<AccountId>,
+}
+
+export default class UpdateChannelCommand extends ContentDirectoryCommandBase {
+  static description = 'Update existing content directory channel.'
+  static flags = {
+    context: ContentDirectoryCommandBase.contextFlag,
+    ...IOFlags,
+  }
+
+  static args = [
+    {
+      name: 'channelId',
+      required: true,
+      description: 'ID of the Channel',
+    },
+  ]
+
+  async run() {
+
+    let { context, input, output } = this.parse(UpdateChannelCommand).flags
+
+    const { channelId } = this.parse(UpdateChannelCommand).args
+
+    if (!context) {
+      context = await this.promptForContext()
+    }
+
+    const currentAccount = await this.getRequiredSelectedAccount()
+    await this.requestAccountDecoding(currentAccount)
+
+    const actor = await this.getActor(context)
+
+    if (input) {
+      let channelUpdateParametersInput = await getInputJson<ChannelUpdateParametersInput>(input)
+      let channelMetadata = new ChannelMetadata()
+      channelMetadata.setTitle(channelUpdateParametersInput.new_meta.title!)
+      channelMetadata.setDescription(channelUpdateParametersInput.new_meta.description!)
+      channelMetadata.setIsPublic(channelUpdateParametersInput.new_meta.isPublic!)
+      channelMetadata.setLanguage(channelUpdateParametersInput.new_meta.language!)
+      channelMetadata.setCoverPhoto(channelUpdateParametersInput.new_meta.coverPhoto!)
+      channelMetadata.setAvatarPhoto(channelUpdateParametersInput.new_meta.avatarPhoto!)
+      channelMetadata.setCategory(channelUpdateParametersInput.new_meta.category!)
+
+      const serialized = channelMetadata.serializeBinary();
+
+      const api = await this.getOriginalApi()
+      
+      const metaRaw = api.createType('Raw', serialized)
+      const meta = new Bytes(api.registry, metaRaw)
+
+      let channelUpdateParameters: ChannelUpdateParameters = {
+        assets: channelUpdateParametersInput.assets,
+        new_meta: meta,
+        reward_account: channelUpdateParametersInput.reward_account,
+      }
+
+      this.jsonPrettyPrint(JSON.stringify(channelUpdateParameters))
+      const confirmed = await this.simplePrompt({ type: 'confirm', message: 'Do you confirm the provided input?' })
+
+      if (confirmed && channelUpdateParameters)  {
+        saveOutputJson(output, `${channelUpdateParametersInput.new_meta.title}Channel.json`, channelUpdateParametersInput)
+        this.log('Sending the extrinsic...')
+
+        await this.sendAndFollowNamedTx(currentAccount, 'content', 'updateChannel', [actor, channelId, channelUpdateParameters])
+
+      }
+    } else {
+      this.log('Input invalid or was not provided...')
+    }
+  }
+}