hotfix: seeds and added env variables

.env

@@ -1,6 +1,10 @@
 FIRST_CHAIN_NAME=YOUR_CHAIN_NAME
 FIRST_CHAIN_MAINTAINER=YOUR_NAME
+FIRST_USER_NAME=YOUR_FIRST_USERNAME
+FIRST_USER_EMAIL=firstuser@email.com
+FIRST_USER_PASSWORD=YOUR_FIRST_USER_PASSWORD
 CONTRACTS_LIMIT=2
 SIGNATURES_LIMIT=5
 REDIS_URL=redis://redis:6379
 ENV_MACHINE=docker
+

app/models/chain.rb

@@ -1,10 +1,11 @@
 # frozen_string_literal: true
 
 class Chain < ApplicationRecord
-  validates :name, presence: true, uniqueness: true, length: { maximum: 20 }
+  validates :name, presence: true, uniqueness: true, length: { maximum: 40 }
   validates :maintainer, presence: true, length: { maximum: 50 }
   validates :chain_version, presence: true, length: { maximum: 20 }
   validates :description, presence: true, length: { maximum: 1000 }
 
   has_many :blocks, dependent: :destroy
 end
+

db/seeds.rb

@@ -4,6 +4,7 @@ def seed_exec
   create_first_chain
   create_acceptable_word_lists
   create_first_block
+  create_first_user
 end
 
 def dev_seed_exec
@@ -19,24 +20,21 @@ def dev_seed_exec
 end
 
 def create_first_chain
-  Chain.create(
+  chain = Chain.find_or_create_by(
     name: ENV["FIRST_CHAIN_NAME"],
     maintainer: ENV["FIRST_CHAIN_MAINTAINER"],
     chain_version: "0.0.1",
     description: "This is a blockchain project generated with outerspace-blockchain."
   )
-
-  puts "Chain created"
-  puts "Chain name: #{ENV["FIRST_CHAIN_NAME"]}"
-  puts "Chain maintainer: #{ENV["FIRST_CHAIN_MAINTAINER"]}"
+  chain.present? ? puts("First chain OK") : puts("Chain seed error")
 end
 
 def create_acceptable_word_lists
   create_acceptable_words
   create_acceptable_symbol_sequences
   create_acceptable_number_sequences
 end
-
+ 
 def create_acceptable_words
   word_list = %w[the of and to a in
                  is you that it he
@@ -93,18 +91,16 @@ def create_acceptable_number_sequences
 
 
 def create_first_block
-  Block.create(
+  block = Block.find_or_create_by(
     chain: Chain.first,
     previous_hash: "0000000000000000000000000000000000000000000000000000000000000000",
     block_data: "This is the first block of the blockchain.",
     nonce: 0,
     connections: 0,
     contracts_count: 0,
     contracts_limit: ENV["CONTRACTS_LIMIT"].to_i,
-    # timestamp: Time.now
   )
-
-  puts "First block created"
+  block.present? ? puts("First block OK") : puts("Block seed error")
 end
 
 def create_test_users
@@ -127,6 +123,17 @@ def create_test_users
   end
 end
 
+def create_first_user
+  if User.find_by(email: ENV["FIRST_USER_EMAIL"], username: ENV["FIRST_USER_USERNAME"])
+    puts "First user already exists"
+  else
+    User.create(
+      email: ENV["FIRST_USER_EMAIL"], username: ENV["FIRST_USER_USERNAME"], password: ENV["FIRST_USER_PASSWORD"], password_confirmation: ENV["FIRST_USER_PASSWORD"]
+    )
+    puts "First user created"
+  end
+end
+
 if Rails.env.development?
   dev_seed_exec
 else