#!/usr/bin/env bash

set -eu

SCRIPT_DIR=$(dirname "$0")
case $SCRIPT_DIR in
    "/"*)
        ;;
    ".")
        SCRIPT_DIR=$(pwd)
        ;;
    *)
        SCRIPT_DIR=$(pwd)/$(dirname "$0")
        ;;
esac

LOG_FILE=/tmp/cppcheck_qgis.txt

rm -f ${LOG_FILE}
echo "Checking ${SCRIPT_DIR}/../src ..."

# qgsgcptransformer.cpp causes an effective hang on newer cppcheck!

cppcheck --library=qt.cfg --inline-suppr \
         --template='{file}:{line},{severity},{id},{message}' \
         --enable=all --inconclusive --std=c++11 \
         -DPROJ_VERSION_MAJOR=6 \
         -USIP_RUN \
         -DSIP_TRANSFER= \
         -DSIP_TRANSFERTHIS= \
         -DSIP_INOUT= \
         -DSIP_OUT= \
         -DSIP_FACTORY= \
         -DSIP_PYNAME= \
         -DSIP_THROW= \
         -DFINAL="final" \
         -DCMAKE_SOURCE_DIR="/foo/bar" \
         -DQ_NOWARN_DEPRECATED_PUSH= \
         -DQ_NOWARN_DEPRECATED_POP= \
         -DQ_NOWARN_UNREACHABLE_PUSH= \
         -DQ_NOWARN_UNREACHABLE_POP= \
         -DQ_DECLARE_OPAQUE_POINTER= \
         -DQGIS_PROTECT_QOBJECT_THREAD_ACCESS = \
         -DQ_DECLARE_SQLDRIVER_PRIVATE = \
         -DSIP_MONKEYPATCH_SCOPEENUM_UNNEST = \
         -DSIP_ENUM_BASETYPE = \
         -DSIP_TYPEHEADER_INCLUDE = \
         -DQT3D_FUNCTOR = \
         -DQgsSetCPLHTTPFetchOverriderInitiatorClass = \
         -DQgsSetRequestInitiatorClass = \
         -DBUILTIN_UNREACHABLE="__builtin_unreachable();" \
         -i src/analysis/georeferencing/qgsgcptransformer.cpp \
         -j $(nproc) \
         ${SCRIPT_DIR}/../src \
         >>${LOG_FILE} 2>&1 &

PID=$!
while kill -0 $PID 2>/dev/null; do
    printf "."
    sleep 1
done
echo " done"
if ! wait $PID; then
    echo "cppcheck failed"
    exit 1
fi

ret_code=0

cat ${LOG_FILE} | grep -v -e "syntaxError," -e "cppcheckError," > ${LOG_FILE}.tmp
mv ${LOG_FILE}.tmp ${LOG_FILE}

ERROR_CATEGORIES=("clarifyCalculation" "duplicateExpressionTernary" "redundantCondition" "postfixOperator" "functionConst" "unsignedLessThanZero" "duplicateBranch" "missingOverride")

# unusedPrivateFunction not reliable enough in cppcheck 1.72 of Ubuntu 16.04
if test "$(cppcheck --version)" != "Cppcheck 1.72"; then
    ERROR_CATEGORIES+=("unusedPrivateFunction")
fi

for category in "style" "performance" "portability"; do
    if grep "${category}," ${LOG_FILE} >/dev/null; then
        echo "INFO: Issues in '${category}' category found, but not considered as making script to fail:"
        grep "${category}," ${LOG_FILE} | grep -v $(printf -- "-e %s, " "${ERROR_CATEGORIES[@]}")
        echo ""
    fi
done

for category in "error" "warning" "${ERROR_CATEGORIES[@]}"; do
    if test "${category}" != ""; then
        if grep "${category}," ${LOG_FILE}  >/dev/null; then
            echo "ERROR: Issues in '${category}' category found:"
            grep "${category}," ${LOG_FILE}
            echo ""
            echo "${category} check failed !"
            ret_code=1
        fi
    fi
done

if [ ${ret_code} = 0 ]; then
    echo "cppcheck succeeded"
fi

exit ${ret_code}