feat: add thumbnail to samples #44

	name: Sample Validation

	on:
	workflow_dispatch:
	pull_request:
	branches:
	- dev
	push:
	branches:
	- dev

	jobs:
	sample-validation:
	runs-on: ubuntu-latest
	steps:
	- name: Checkout Pull Request
	if: ${{ github.event_name == 'pull_request' }}
	uses: actions/checkout@v3
	with:
	fetch-depth: 0
	ref: ${{ github.head_ref }}
	repository: ${{ github.event.pull_request.head.repo.full_name }}

	- name: Checkout Branch
	if: ${{ github.event_name != 'pull_request' }}
	uses: actions/checkout@v3
	with:
	fetch-depth: 0
	ref: ${{ github.ref_name }}
	repository: ${{ github.repository }}

	- uses: actions/setup-node@v3
	with:
	node-version: 18

	- name: Validate Sample Config
	run: \|
	node validation-tool/validate-config.js .config/samples-config-v3.json
	exit $?

	- name: Sample Validation Tool
	run: \|
	# This script runs the validation tool against all samples in the samples-config-v3.json file.
	# External samples are excluded from the validation.
	exceptions=("incoming-webhook-notification")
	samples=`jq -r ".samples \| .[] \| select(has(\"downloadUrl\") \| not) \| .id" .config/samples-config-v3.json`
	validationFailed="validation failed"
	validationResult=true
	while IFS= read -r line; do
	if [[ ! ${exceptions[@]} =~ $line ]]
	then
	result=`node ./validation-tool/validator.cjs -p $line`
	if grep -q "$validationFailed" <<< "$result"; then
	printf "\nSample '$line' validation failed.\n"
	echo "$result"
	validationResult=false
	fi
	fi
	done <<< "$samples"
	if [ "$validationResult" = false ]; then
	exit 1
	fi

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