^^

.env.example

@@ -0,0 +1 @@
+BOT_TOKEN=

.formatter.exs

@@ -0,0 +1,4 @@
+# Used by "mix format"
+[
+  inputs: ["{mix,.formatter}.exs", "{config,lib,test}/**/*.{ex,exs}"]
+]

.gitignore

@@ -0,0 +1,29 @@
+# The directory Mix will write compiled artifacts to.
+/_build/
+
+# If you run "mix test --cover", coverage assets end up here.
+/cover/
+
+# The directory Mix downloads your dependencies sources to.
+/deps/
+
+# Where third-party dependencies like ExDoc output generated docs.
+/doc/
+
+# Ignore .fetch files in case you like to edit your project deps locally.
+/.fetch
+
+# If the VM crashes, it generates a dump, let's ignore it too.
+erl_crash.dump
+
+# Also ignore archive artifacts (built via "mix archive.build").
+*.ez
+
+# Ignore package tarball (built via "mix hex.build").
+excrypt-*.tar
+
+# Temporary files, for example, from tests.
+/tmp/
+
+# config files
+.env

README.md

@@ -0,0 +1,11 @@
+# Kefir
+The Telegram integrations from Quendl.
+
+
+## Get started
+- Create an account [here at Telegram](https://web.telegram.org/k/)
+- DM BotFather and run `/newbot`
+  Follow the instructions ...
+
+- Copy the bot token, rename `.env.example` to `.env` and paste the bot token into it.
+

lib/config/runtime.exs

@@ -0,0 +1,9 @@
+import Config
+
+if Config.config_env() == :dev do
+  DotenvParser.load_file(".env")
+end
+
+# Now variables from `.env` are loaded into system env
+config :excrypt,
+  bot_token: System.fetch_env!("BOT_TOKEN")

lib/excrypt.ex

@@ -0,0 +1,5 @@
+defmodule Excrypt do
+  def hello do
+    :world
+  end
+end

lib/excrypt/application.ex

@@ -0,0 +1,20 @@
+defmodule Excrypt.Application do
+  @moduledoc false
+
+  use Application
+
+  @impl true
+  def start(_type, _args) do
+    # fetch the bot token from the application
+    bot_token = Application.get_env(:excrypt, :bot_token)
+
+    children = [
+      ExGram,
+      {Excrypt.Bot, [method: :polling, token: bot_token]}
+      #                                       ^ you could also replace this with "the bot token ..."
+    ]
+
+    opts = [strategy: :one_for_one, name: Excrypt.Supervisor]
+    Supervisor.start_link(children, opts)
+  end
+end

lib/excrypt/bot.ex

@@ -0,0 +1,43 @@
+defmodule Excrypt.Bot do
+  @bot :excrypt
+
+  use ExGram.Bot,
+    name: @bot,
+    setup_commands: true
+
+  # commands of the bot
+  command("start")
+  command("help", description: "Print the bot's help")
+  command("github", description: "Returns the GitHub link")
+
+  # middleware integration
+  middleware(ExGram.Middleware.IgnoreUsername)
+
+  @spec bot :: :excrypt
+  def bot(), do: @bot
+
+  # bot commands
+  def handle({:command, :start, _msg}, context) do
+    answer(context, "Hello there! I am the Telegram integration for Quendl.")
+  end
+
+  def handle({:command, :github, _msg}, context) do
+    answer(context, "Here is your link: https://github.com/quendl/kefir")
+  end
+
+  # main command
+  def handle({:command, :help, _msg}, context) do
+    answer(context, get_help())
+  end
+
+  # This can be used to avoid hard coded answer contexts
+  # Tho I would only use this if the answer is longer than one line.
+  def get_help() do
+    """
+    This bot has the following commands
+    /start - starts the bot with an introduction
+    /help - sends the help menu
+    /github - returns the github link
+    """
+  end
+end

mix.exs

@@ -0,0 +1,31 @@
+defmodule Excrypt.MixProject do
+  use Mix.Project
+
+  def project do
+    [
+      app: :excrypt,
+      version: "0.1.0",
+      elixir: "~> 1.13",
+      start_permanent: Mix.env() == :prod,
+      deps: deps()
+    ]
+  end
+
+  # Run "mix help compile.app" to learn about applications.
+  def application do
+    [
+      extra_applications: [:logger],
+      mod: {Excrypt.Application, []}
+    ]
+  end
+
+  # Run "mix help deps" to learn about dependencies.
+  defp deps do
+    [
+      {:ex_gram, "~> 0.26"},
+      {:hackney, "~> 1.12"},
+      {:jason, ">= 1.0.0"},
+      {:dotenv_parser, "~> 2.0"}
+    ]
+  end
+end

mix.lock

@@ -0,0 +1,15 @@
+%{
+  "certifi": {:hex, :certifi, "2.9.0", "6f2a475689dd47f19fb74334859d460a2dc4e3252a3324bd2111b8f0429e7e21", [:rebar3], [], "hexpm", "266da46bdb06d6c6d35fde799bcb28d36d985d424ad7c08b5bb48f5b5cdd4641"},
+  "dotenv_parser": {:hex, :dotenv_parser, "2.0.0", "0f999196857e4ee18cbba1413018d5e4980ab16b397e3a2f8d0cf541fe683181", [:mix], [], "hexpm", "e769bde2dbff5b0cd0d9d877a9ccfd2c6dd84772dfb405d5a43cceb4f93616c5"},
+  "ex_gram": {:hex, :ex_gram, "0.26.0", "4821e0a615c279052c77153ea6bf1ad43d5fe6ca02d4a5729e95c3140e826e4d", [:mix], [{:gun, "~> 1.3", [hex: :gun, repo: "hexpm", optional: true]}, {:hackney, "~> 1.12", [hex: :hackney, repo: "hexpm", optional: true]}, {:jason, ">= 1.0.0", [hex: :jason, repo: "hexpm", optional: true]}, {:maxwell, "~> 2.3.1", [hex: :maxwell, repo: "hexpm", optional: true]}, {:poison, ">= 1.0.0", [hex: :poison, repo: "hexpm", optional: true]}, {:tesla, "~> 1.2", [hex: :tesla, repo: "hexpm", optional: true]}], "hexpm", "1f07d0a4f51b0c910972c6aa0e28c39cc358c3743fca03671b0d86eafe17b4d1"},
+  "hackney": {:hex, :hackney, "1.18.1", "f48bf88f521f2a229fc7bae88cf4f85adc9cd9bcf23b5dc8eb6a1788c662c4f6", [:rebar3], [{:certifi, "~>2.9.0", [hex: :certifi, repo: "hexpm", optional: false]}, {:idna, "~>6.1.0", [hex: :idna, repo: "hexpm", optional: false]}, {:metrics, "~>1.0.0", [hex: :metrics, repo: "hexpm", optional: false]}, {:mimerl, "~>1.1", [hex: :mimerl, repo: "hexpm", optional: false]}, {:parse_trans, "3.3.1", [hex: :parse_trans, repo: "hexpm", optional: false]}, {:ssl_verify_fun, "~>1.1.0", [hex: :ssl_verify_fun, repo: "hexpm", optional: false]}, {:unicode_util_compat, "~>0.7.0", [hex: :unicode_util_compat, repo: "hexpm", optional: false]}], "hexpm", "a4ecdaff44297e9b5894ae499e9a070ea1888c84afdd1fd9b7b2bc384950128e"},
+  "idna": {:hex, :idna, "6.1.1", "8a63070e9f7d0c62eb9d9fcb360a7de382448200fbbd1b106cc96d3d8099df8d", [:rebar3], [{:unicode_util_compat, "~>0.7.0", [hex: :unicode_util_compat, repo: "hexpm", optional: false]}], "hexpm", "92376eb7894412ed19ac475e4a86f7b413c1b9fbb5bd16dccd57934157944cea"},
+  "jason": {:hex, :jason, "1.3.0", "fa6b82a934feb176263ad2df0dbd91bf633d4a46ebfdffea0c8ae82953714946", [:mix], [{:decimal, "~> 1.0 or ~> 2.0", [hex: :decimal, repo: "hexpm", optional: true]}], "hexpm", "53fc1f51255390e0ec7e50f9cb41e751c260d065dcba2bf0d08dc51a4002c2ac"},
+  "metrics": {:hex, :metrics, "1.0.1", "25f094dea2cda98213cecc3aeff09e940299d950904393b2a29d191c346a8486", [:rebar3], [], "hexpm", "69b09adddc4f74a40716ae54d140f93beb0fb8978d8636eaded0c31b6f099f16"},
+  "mime": {:hex, :mime, "2.0.2", "0b9e1a4c840eafb68d820b0e2158ef5c49385d17fb36855ac6e7e087d4b1dcc5", [:mix], [], "hexpm", "e6a3f76b4c277739e36c2e21a2c640778ba4c3846189d5ab19f97f126df5f9b7"},
+  "mimerl": {:hex, :mimerl, "1.2.0", "67e2d3f571088d5cfd3e550c383094b47159f3eee8ffa08e64106cdf5e981be3", [:rebar3], [], "hexpm", "f278585650aa581986264638ebf698f8bb19df297f66ad91b18910dfc6e19323"},
+  "parse_trans": {:hex, :parse_trans, "3.3.1", "16328ab840cc09919bd10dab29e431da3af9e9e7e7e6f0089dd5a2d2820011d8", [:rebar3], [], "hexpm", "07cd9577885f56362d414e8c4c4e6bdf10d43a8767abb92d24cbe8b24c54888b"},
+  "ssl_verify_fun": {:hex, :ssl_verify_fun, "1.1.6", "cf344f5692c82d2cd7554f5ec8fd961548d4fd09e7d22f5b62482e5aeaebd4b0", [:make, :mix, :rebar3], [], "hexpm", "bdb0d2471f453c88ff3908e7686f86f9be327d065cc1ec16fa4540197ea04680"},
+  "tesla": {:hex, :tesla, "1.4.4", "bb89aa0c9745190930366f6a2ac612cdf2d0e4d7fff449861baa7875afd797b2", [:mix], [{:castore, "~> 0.1", [hex: :castore, repo: "hexpm", optional: true]}, {:exjsx, ">= 3.0.0", [hex: :exjsx, repo: "hexpm", optional: true]}, {:finch, "~> 0.3", [hex: :finch, repo: "hexpm", optional: true]}, {:fuse, "~> 2.4", [hex: :fuse, repo: "hexpm", optional: true]}, {:gun, "~> 1.3", [hex: :gun, repo: "hexpm", optional: true]}, {:hackney, "~> 1.6", [hex: :hackney, repo: "hexpm", optional: true]}, {:ibrowse, "4.4.0", [hex: :ibrowse, repo: "hexpm", optional: true]}, {:jason, ">= 1.0.0", [hex: :jason, repo: "hexpm", optional: true]}, {:mime, "~> 1.0 or ~> 2.0", [hex: :mime, repo: "hexpm", optional: false]}, {:mint, "~> 1.0", [hex: :mint, repo: "hexpm", optional: true]}, {:poison, ">= 1.0.0", [hex: :poison, repo: "hexpm", optional: true]}, {:telemetry, "~> 0.4 or ~> 1.0", [hex: :telemetry, repo: "hexpm", optional: true]}], "hexpm", "d5503a49f9dec1b287567ea8712d085947e247cb11b06bc54adb05bfde466457"},
+  "unicode_util_compat": {:hex, :unicode_util_compat, "0.7.0", "bc84380c9ab48177092f43ac89e4dfa2c6d62b40b8bd132b1059ecc7232f9a78", [:rebar3], [], "hexpm", "25eee6d67df61960cf6a794239566599b09e17e668d3700247bc498638152521"},
+}

test/excrypt_test.exs

@@ -0,0 +1,8 @@
+defmodule ExcryptTest do
+  use ExUnit.Case
+  doctest Excrypt
+
+  test "greets the world" do
+    assert Excrypt.hello() == :world
+  end
+end

test/test_helper.exs

@@ -0,0 +1 @@
+ExUnit.start()