#!/usr/bin/env bash
set -e

# Get the directory of where this script is.
SOURCE="${BASH_SOURCE[0]}"
while [ -h "$SOURCE" ] ; do SOURCE="$(readlink "$SOURCE")"; done
DIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )"

# Change into that dir because we expect that.
pushd "$DIR"

echo "==> Installing deps"
go get -v

echo "==> Building the server"
go build -o rpcserver main.go

echo "==> (Re)starting the server"
PID=$(pgrep rpcserver || echo "")
if [[ $PID != "" ]]; then
	kill -9 "$PID"
fi
./rpcserver &
PID=$!
sleep 2

echo "==> simple request"
R1=$(curl -s 'http://localhost:8008/hello_world?name="my_world"&num=5')
R2=$(curl -s --data @data.json http://localhost:8008)
if [[ "$R1" != "$R2" ]]; then
	echo "responses are not identical:"
	echo "R1: $R1"
	echo "R2: $R2"
	echo "FAIL"
	exit 1
else
	echo "OK"
fi

echo "==> request with 0x-prefixed hex string arg"
R1=$(curl -s 'http://localhost:8008/hello_world?name=0x41424344&num=123')
R2='{"jsonrpc":"2.0","id":"","result":{"Result":"hi ABCD 123"},"error":""}'
if [[ "$R1" != "$R2" ]]; then
	echo "responses are not identical:"
	echo "R1: $R1"
	echo "R2: $R2"
	echo "FAIL"
	exit 1
else
	echo "OK"
fi

echo "==> request with missing params"
R1=$(curl -s 'http://localhost:8008/hello_world')
R2='{"jsonrpc":"2.0","id":"","result":{"Result":"hi  0"},"error":""}'
if [[ "$R1" != "$R2" ]]; then
	echo "responses are not identical:"
	echo "R1: $R1"
	echo "R2: $R2"
	echo "FAIL"
	exit 1
else
	echo "OK"
fi

echo "==> request with unquoted string arg"
R1=$(curl -s 'http://localhost:8008/hello_world?name=abcd&num=123')
R2="{\"jsonrpc\":\"2.0\",\"id\":\"\",\"result\":null,\"error\":\"Error converting http params to args: invalid character 'a' looking for beginning of value\"}"
if [[ "$R1" != "$R2" ]]; then
	echo "responses are not identical:"
	echo "R1: $R1"
	echo "R2: $R2"
	echo "FAIL"
	exit 1
else
	echo "OK"
fi

echo "==> request with string type when expecting number arg"
R1=$(curl -s 'http://localhost:8008/hello_world?name="abcd"&num=0xabcd')
R2="{\"jsonrpc\":\"2.0\",\"id\":\"\",\"result\":null,\"error\":\"Error converting http params to args: Got a hex string arg, but expected 'int'\"}"
if [[ "$R1" != "$R2" ]]; then
	echo "responses are not identical:"
	echo "R1: $R1"
	echo "R2: $R2"
	echo "FAIL"
	exit 1
else
	echo "OK"
fi

echo "==> Stopping the server"
kill -9 $PID

rm -f rpcserver

popd
exit 0