Fix Credo warnings, simplify code with Credo #44

	name: Elixir CI

	on:
	push:
	branches: [main]
	pull_request:
	branches: [main]

	permissions:
	contents: read

	jobs:
	build:
	name: Build and test
	runs-on: self-hosted

	steps:
	- uses: actions/checkout@v4
	with:
	fetch-depth: 0
	- name: Read .tool-versions
	uses: marocchino/tool-versions-action@v1
	id: versions
	- name: Set up Elixir
	uses: erlef/setup-beam@v1
	with:
	elixir-version: ${{steps.versions.outputs.elixir}}
	otp-version: ${{ steps.versions.outputs.erlang}}
	- name: Restore dependencies cache
	uses: buildjet/cache@v3
	with:
	path: \|
	deps
	_build
	priv/plts
	key: ${{ runner.os }}-mix-v6-${{ hashFiles('**/mix.lock') }}
	restore-keys: ${{ runner.os }}-mix-v6-
	- name: Install dependencies
	run: mix deps.get
	- name: Check Formatting
	run: mix format --check-formatted
	- name: Check Compile Warnings
	run: mix compile --warnings-as-errors --all-warnings
	- name: Check Credo Warnings
	run: mix credo --strict
	- name: Write env file
	run: \|
	touch .env.test
	echo XTB_API_URL="${{ secrets.XTB_API_URL }}" >> .env.test
	echo XTB_API_USERNAME="${{ secrets.XTB_API_USERNAME }}" >> .env.test
	echo XTB_API_PASSWORD="${{ secrets.XTB_API_PASSWORD }}" >> .env.test
	- name: Run tests
	run: mix test --max-failures 1 --warnings-as-errors
	- name: Check Dialyzer
	run: mix dialyzer

	env:
	MIX_ENV: test

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