added command with interactive dialog

server/commands.go

@@ -0,0 +1,66 @@
+package main
+
+import (
+	"strings"
+
+	"github.com/mattermost/mattermost/server/public/model"
+	"github.com/mattermost/mattermost/server/public/plugin"
+)
+
+func (p *Plugin) getCommand() *model.Command {
+	return &model.Command{
+		Trigger:      "removeattachments",
+		DisplayName:  "Remove Attachments",
+		Description:  "Remove all attachments from a post",
+		AutoComplete: false, // Hide from autocomplete
+	}
+}
+
+func (p *Plugin) createCommandResponse(message string) *model.CommandResponse {
+	return &model.CommandResponse{
+		Text: message,
+	}
+}
+
+func (p *Plugin) createErrorCommandResponse(errorMessage string) *model.CommandResponse {
+	return &model.CommandResponse{
+		Text: "Can't remove attachments: " + errorMessage,
+	}
+}
+
+func (p *Plugin) ExecuteCommand(c *plugin.Context, args *model.CommandArgs) (*model.CommandResponse, *model.AppError) {
+	commandSplit := strings.Split(args.Command, " ")
+
+	// Do not provide command output since it's going to be triggered from the frontend
+	if len(commandSplit) != 2 {
+		return p.createErrorCommandResponse("Invalid number of arguments, use `/removeattachments [postID]`."), nil
+	}
+
+	postID := commandSplit[1]
+
+	// Check if the post ID is a valid ID
+	if !model.IsValidId(postID) {
+		return p.createErrorCommandResponse("Invalid post ID"), nil
+	}
+
+	// Check if the user has permissions to remove attachments from the post
+	if errReason := p.userHasRemovePermissionsToPost(args.UserId, args.ChannelId, postID); errReason != "" {
+		return p.createErrorCommandResponse(errReason), nil
+	}
+
+	// Create an interactive dialog to confirm the action
+	if err := p.API.OpenInteractiveDialog(model.OpenDialogRequest{
+		TriggerId: args.TriggerId,
+		URL:       "/plugins/" + manifest.Id + "/api/v1/remove_attachments?post_id=" + postID,
+		Dialog: model.Dialog{
+			Title:            "Remove Attachments",
+			IntroductionText: "Are you sure you want to remove all attachments from this post?",
+			SubmitLabel:      "Remove",
+		},
+	}); err != nil {
+		return p.createCommandResponse(err.Error()), nil
+	}
+
+	// Return nothing, let the dialog/api handle the response
+	return &model.CommandResponse{}, nil
+}