Initial commit

Author: alexandregv

.editorconfig

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+root = true
+
+[*.cr]
+charset = utf-8
+end_of_line = lf
+insert_final_newline = true
+indent_style = space
+indent_size = 2
+trim_trailing_whitespace = true

.gitignore

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+/docs/
+/lib/
+/bin/
+/.shards/
+*.dwarf

.travis.yml

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+language: crystal

LICENSE

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+The MIT License (MIT)
+
+Copyright (c) 2019 triinoxys
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.

README.md

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+# RP42
+
+A Discord Rich Presence integration for [@42School](https://github.com/42School).
+
+## Installation
+
+Just download a prebuilt binary from the [releases](https://github.com/triinoxys/RP42/releases) page, or build it yourself.  
+To build it:
+1. Clone the repo: `git clone https://github.com/triinoxys/RP42.git`
+2. Install dependencies: `shards install` (no deps right now)  
+3. Compile: `crystal build src/RP42.cr --release --no-debug`
+
+## Usage
+
+Just execute the newly created file (in background): `./RP42 &`
+
+## Contributing
+
+1. Fork it (<https://github.com/triinoxys/RP42/fork>)
+2. Create your feature branch (`git checkout -b my-new-feature`)
+3. Commit your changes (`git commit -am 'Add some feature'`)
+4. Push to the branch (`git push origin my-new-feature`)
+5. Create a new Pull Request
+
+## Contributors
+
+- [triinoxys/aguiot--](https://github.com/triinoxys) - creator and maintainer

shard.yml

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+name: RP42
+version: 0.1.0
+
+authors:
+  - aguiot-- <aguiot--@student.42.fr>
+
+targets:
+  RP42:
+    main: src/RP42.cr
+
+crystal: 0.27.0
+
+license: MIT

spec/RP42_spec.cr

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+require "./spec_helper"
+
+describe RP42 do
+  # TODO: Write tests
+
+  it "works" do
+    false.should eq(true)
+  end
+end

spec/spec_helper.cr

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+require "spec"
+require "../src/RP42"

src/RP42.cr

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+require "./client"
+
+module RP42
+	VERSION = "0.1.0"
+
+  hostname = System.hostname.split(".", 2)
+  exit if hostname[1] != "42.fr" 
+
+  client = RichCrystal::Client.new(531103976029028367_u64)
+	client.login
+	client.activity({
+		"details" => "Location: #{hostname[0]}",
+    "assets" => {
+      "large_image" => "logo",
+      "large_text" => "42",
+    }
+	})
+
+  sleep
+end

src/client.cr

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+require "json"
+require "./ipc"
+
+module RichCrystal
+  class Client
+    # Creates a new Rich-crystal client used for set rich presence activity
+    def initialize(@client_id : UInt64)
+      @ipc = RichCrystal::Ipc.new
+    end
+
+    # Log the RichCrystal client by sending a first handshake to the IPC
+    def login
+      # Generate the payload in JSON
+      payload = {
+        "v"         => 1,
+        "client_id" => "#{@client_id}",
+        "nonce"     => Time.now.to_s("%s"),
+      }.to_json
+
+      # Send the handshake to the IPC
+      @ipc.send(RichCrystal::Ipc::Opcode::Handshake, payload)
+    end
+
+    # Retrieves a Hash of Strings for sending the frame payload to the IPC
+    # with discord-rich-presence parameters (see here https://github.com/discordapp/discord-rpc/blob/master/documentation/hard-mode.md#new-rpc-command)
+    # and return the JSON response
+    def activity(activity)
+      # Generate the payload in JSON
+      payload = {
+        "cmd"  => "SET_ACTIVITY",
+        "args" => {
+          "pid"      => Process.pid,
+          "activity" => activity,
+        },
+        "nonce" => Time.now.to_s("%s"),
+      }.to_json
+
+      # Send the frame to the IPC
+      @ipc.send(RichCrystal::Ipc::Opcode::Frame, payload)
+    end
+  end
+end