#!/bin/bash
set -euo errexit

SCRIPTPATH="$( cd "$(dirname "$0")" ; pwd -P )"
BUILD_DIR="$SCRIPTPATH/../../build"
OS=$(uname | tr '[:upper:]' '[:lower:]')

function exit_and_fail() {
   echo "❌ Test Failed! README is not consistent with code examples."
   exit 1
}
trap exit_and_fail INT ERR
docker build --target=builder -t codeblocks -f $SCRIPTPATH/../../Dockerfile $SCRIPTPATH/../../
docker build -t rundoc -f $SCRIPTPATH/rundoc-Dockerfile $SCRIPTPATH/
function rd() {
   docker run -i --rm -v $SCRIPTPATH/../../:/aeis rundoc rundoc "$@"
}

rundoc_output=$(rd list-blocks /aeis/README.md)
example_files=($(echo $rundoc_output | jq -r '.code_blocks[] | .tags[1]'))
interpreters=($(echo $rundoc_output | jq -r '.code_blocks[] | .interpreter'))

## Execute --help check which compares the help codeblock in the README to the actual output of the binary
rd list-blocks -T "bash#help" /aeis/README.md | jq -r '.code_blocks[0] .code' > $BUILD_DIR/readme_help.out
docker run -t --rm codeblocks build/ec2-instance-selector --help > $BUILD_DIR/actual_help.out
diff --ignore-all-space --ignore-blank-lines "$BUILD_DIR/actual_help.out" "$BUILD_DIR/readme_help.out"
echo "✅ README help section matches actual binary output!"

## Execute go codeblocks example tests which checks the go codeblocks in the readme with a source file path
echo $rundoc_output | docker run -i --rm codeblocks go run test/readme-test/readme-codeblocks.go --current-dir /amazon-ec2-instance-selector/test/readme-test/
echo "✅ Codeblocks match source files"

for i in "${!example_files[@]}"; do
   if [[ "${interpreters[$i]}" == "go" ]]; then
      example_file="${example_files[$i]}"
      example_bin=$(echo $example_file | cut -d'.' -f1)
      mkdir -p $BUILD_DIR/examples
      docker run -i -e GOOS=$OS -e GOARCH=amd64 -v $BUILD_DIR:/amazon-ec2-instance-selector/build --rm codeblocks go build -o build/examples/$example_bin $example_file
      $BUILD_DIR/examples/$example_bin
      echo "✅ $example_file Executed Successfully!"
   fi
done