feat: add basic support for command line

src/cli.cr

@@ -1,24 +1,71 @@
 
+require "option_parser"
 require "./config"
 require "./fzf"
 
 module GX
   class Cli
-    @home_dir : String
+
     @config : Config
 
     def initialize()
       # Main execution starts here
-      if !ENV["HOME"]?
-        raise "Home directory not found"
-      end
-      @home_dir = ENV["HOME"]
-      @config = Config.new(File.join(@home_dir, ".config/gx-vault.yml"))
+      @config = Config.new
 
       ## FIXME: check that FZF is installed
     end
 
+    def parse_command_line(args)
+      # update 
+      add_args = { name: "", path: "" }
+      delete_args = { name: "" }
+      pparser = OptionParser.new do |parser|
+        parser.banner = "Usage: gx-vault [options]\n\nGlobal options"
+
+        parser.on("-c", "--config FILE", "Set configuration file") do |path|
+          @config.path = path
+        end
+        parser.on("-h", "--help", "Show this help") do |flag|
+          STDOUT.puts parser
+          exit(0)
+        end
+
+        parser.separator("\nCommands")
+        parser.on("create", "Create vault") do 
+          @config.mode = Config::Mode::Add
+
+          parser.banner = "Usage: gx-vault create [options]\n\nGlobal options"
+          parser.separator("\nCommand options")
+
+          parser.on("-n", "--name", "Set vault name") do |name|
+            add_args = add_args.merge({ name: name })
+          end
+          parser.on("-p", "--path", "Set vault encrypted path") do |path|
+            add_args = add_args.merge({ path: path })
+          end
+        end
+
+        parser.on("delete", "Delete vault") do 
+          @config.mode = Config::Mode::Add
+
+          parser.banner = "Usage: gx-vault delete [options]\n\nGlobal options"
+          parser.separator("\nCommand options")
+
+          parser.on("-n", "--name", "Set vault name") do |name|
+            delete_args = delete_args.merge({ name: name })
+          end
+        end
+
+        parser.on("edit", "Edit configuration") do |flag|
+          @config.mode = Config::Mode::Edit
+        end
+
+      end
+      pparser.parse(args)
+    end
+
     def run()
+      @config.load_from_file
       # Correcting the fzf interaction part
       names_display = @config.vaults.map do |vault|
         vault.mounted? ? "#{vault.name} [#{ "open".colorize(:green) }]" : vault.name
@@ -34,9 +81,6 @@ module GX
         STDERR.puts "Vault not found.".colorize(:red)
       end
 
-
-    end
-
-
+    end
   end
 end

src/config.cr

@@ -3,11 +3,44 @@ require "./vault"
 
 module GX
   class Config
-  getter vaults : Array(Vault)
+    enum Mode
+      Add
+      Edit
+      Run
+    end
 
-  def initialize(config_path : String)
+    record NoArgs
+    record AddArgs, name : String, path : String
+    record DelArgs, name : String
+
+    getter vaults : Array(Vault)
+    getter home_dir : String
+    property mode : Mode
+    property path : String
+    property args : AddArgs.class | DelArgs.class | NoArgs.class
+
+    DEFAULT_CONFIG_PATH = "gx-vault.yml"
+
+    def initialize()
+      if !ENV["HOME"]?
+        raise "Home directory not found"
+      end
+      @home_dir = ENV["HOME"]
+
+      @mode = Mode::Run
       @vaults = [] of Vault
-    load_vaults(config_path)
+      @path = File.join(@home_dir, ".config", DEFAULT_CONFIG_PATH)
+      @args = NoArgs
+    end
+
+    def load_from_file
+      @vaults = [] of Vault
+
+      if !File.exists? @path
+        STDERR.puts "Error: file #{@path} does not exist!".colorize(:red)
+        exit(1)
+      end
+      load_vaults(@path)
     end
 
     private def load_vaults(config_path : String)

src/main.cr

@@ -7,6 +7,7 @@ require "./config"
 require "./cli"
 
 app = GX::Cli.new
+app.parse_command_line(ARGV)
 app.run