Add basic token canister parsing

app/assets/stylesheets/application.css.sass

@@ -114,8 +114,9 @@ header
 
 *, *:before, *:after
   box-sizing: inherit
-  font-family: Impact, Anton, fantasy, sans-serif
   font-weight: lighter
+body
+  font-family: Impact, Anton, fantasy, sans-serif
 .eyecandy
   display: block
   left: 0
@@ -224,5 +225,11 @@ textarea
   padding: 0 1em
   margin: 0 auto
 
+.table-container
+  max-width: 100%
+  overflow-x: auto
+  align-self: start
+
 @import doodads
 @import profiles
+@import tokens

app/assets/stylesheets/tokens.sass

@@ -0,0 +1,5 @@
+.token-index
+  font-family: "monospace"
+
+.token-logo
+  max-width: 100%

app/assets/stylesheets/tokens.scss

@@ -1,3 +0,0 @@
-// Place all the styles related to the Tokens controller here.
-// They will automatically be included in application.css.
-// You can use Sass (SCSS) here: https://sass-lang.com/

app/controllers/tokens_controller.rb

@@ -1,5 +1,5 @@
 class TokensController < ApplicationController
-  before_action :set_token, only: %i[ show edit update destroy ]
+  before_action :set_token, only: %i[ show edit update destroy refresh ]
 
   # GET /tokens or /tokens.json
   def index
@@ -21,6 +21,36 @@ class TokensController < ApplicationController
     authorize @token
   end
 
+  def refresh
+    authorize @token
+    # if call icrc1_metadata #icrc1
+    metadata = `dfx canister --network ic call #{@token.canister_id} icrc1_metadata 2>&1`
+    if metadata.scan(/no update method/).present?
+      metadata = `dfx canister --network ic call #{@token.canister_id} getMetadata 2>&1`
+      if metadata.scan(/no update method/).present?
+        @token.standard = :unknown
+      else
+        @token.standard = :dip20
+        @token.transfer_fee = metadata.lines[2].split[2]
+        @token.decimals = metadata.lines[3].split[2]
+        # @token.owner = metadata.lines[4].split[3]
+        @token.logo_url = metadata.lines[5].split[2]
+      end
+    else
+        @token.standard = :icrc1
+    end
+    # elsif call getMetadata #dip20
+    respond_to do |format|
+      if @token.save
+        format.html { redirect_to token_url(@token), notice: "Token was successfully refreshed." }
+        format.json { render :show, status: :created, location: @token }
+      else
+        format.html { render :new, status: :unprocessable_entity }
+        format.json { render json: @token.errors, status: :unprocessable_entity }
+      end
+    end
+  end
+
   # POST /tokens or /tokens.json
   def create
     authorize @token = Token.new(token_params)

app/models/token.rb

@@ -1,3 +1,4 @@
 class Token < ActiveRecord::Base
+  enum standard: [:dip20, :icrc1, :unknown]
   validates :canister_id, presence: true, uniqueness: true
 end

app/policies/token_policy.rb

@@ -53,4 +53,7 @@ class TokenPolicy
     @user.admin?
   end
 
+  def refresh?
+    true
+  end
 end

app/views/tokens/index.html.haml

@@ -1,37 +1,40 @@
-%h1 Listing tokens
+.contain
+  %h1 Listing tokens
 
-- if policy(Token).new?
-  = link_to 'Add Token', new_token_path
+  %div{style: "align-self: start;"}
+    - if policy(Token).new?
+      = link_to 'Add Token', new_token_path
 
-%table
-  %thead
-    %tr
-      %th Logo
-      %th Canister
-      %th Standard
-      %th Symbol
-      %th Name
-      %th Total supply
-      %th Decimals
-      %th Transfer fee
-      - if policy(@tokens).update?
-        %th
-        %th
-        %th
-
-  %tbody
-    - @tokens.each do |token|
+.table-container
+  %table.token-index
+    %thead
       %tr
-        %td= token.logo_url
-        %td= token.canister_id
-        %td= token.standard
-        %td= token.symbol
-        %td= token.name
-        %td= token.total_supply
-        %td= token.decimals
-        %td= token.transfer_fee
-        - if policy(token).update?
-          %td= link_to 'Show', token
-          %td= link_to 'Edit', edit_token_path(token)
-          %td= link_to 'Destroy', token, method: :delete, data: { confirm: 'Are you sure?' }
+        %th Logo
+        %th Canister
+        %th Standard
+        %th Symbol
+        %th Name
+        %th Total supply
+        %th Decimals
+        %th Transfer fee
+        - if policy(@tokens).update?
+          %th
+          %th
+          %th
+
+    %tbody
+      - @tokens.each do |token|
+        %tr
+          %td= raw "<img class='token-logo' src=#{token.logo_url} />"
+          %td= link_to token.canister_id, token
+          %td= token.standard
+          %td= token.symbol
+          %td= token.name
+          %td= token.total_supply
+          %td= token.decimals
+          %td= token.transfer_fee
+          - if policy(token).update?
+            %td= link_to 'Show', token
+            %td= link_to 'Edit', edit_token_path(token)
+            %td= link_to 'Destroy', token, method: :delete, data: { confirm: 'Are you sure?' }
 

app/views/tokens/show.html.haml

@@ -1,11 +1,18 @@
-%p#notice= notice
 
-%p
-  %b Canister:
-  = @token.logo_url
+- if policy(@token).edit?
+  = link_to 'Edit', edit_token_path(@token)
+
+= link_to "Refresh Data", refresh_token_path(@token)
+
 %p
   %b Canister:
   = @token.canister_id
+%p
+  %b Logo:
+  - if @token.logo_url.present?
+    -# %img{src: @token.logo_url}
+    -# :escaped
+    =raw "<img class='token-logo' src=#{@token.logo_url} />"
 %p
   %b Standard:
   = @token.standard
@@ -25,6 +32,3 @@
   %b Transfer fee:
   = @token.transfer_fee
 
-= link_to 'Edit', edit_token_path(@token)
-\|
-= link_to 'Back', tokens_path

config/routes.rb

@@ -1,7 +1,11 @@
 Rails.application.routes.draw do
   resources :social_links
   resources :profiles
-  resources :tokens
+  resources :tokens do
+    member do
+      get 'refresh'
+    end
+  end
   resources :projects
   resources :doodads
   resources :canisters