#!/bin/bash

# @see https://intoli.com/blog/exit-on-errors-in-bash-scripts/
set -e


#trap 'LASTRES=$?; LAST=$BASH_COMMAND; if [[ LASTRES -ne 0 ]]; then fail "Command: \"$LAST\" exited with exit code: $LASTRES"; elif [ "$FAIL" -eq "1" ]; then fail finished with error; exit 1; else pass "finished";fi' EXIT

SRCDIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"
DIRNAME="${SRCDIR##*/}"
SOURCE_DIR=$PWD
PRO_FILE=$(find . -d 1 -type f -name "*.pro")

BUILDPATH=$SOURCE_DIR"/../build/testcc"
COVERAGE_DIR=$SOURCE_DIR"/../build/testcc-info"
HTML_RESULTS_DIR=$SOURCE_DIR"/../build/testcc-html"
COVERAGE_FILTER="*Qt*.framework* *Xcode.app* *.moc *moc_*.cpp */test/* *qrc_* ui_* *qt.headers */build/* *main*.* *c++* */server-sdk/*"


main() {
  setup
  testcc "$@"
}

function setup() {
    mkdir -p $BUILDPATH

    GIT=`git -C "$SRCDIR" describe --tags --always`
    GITSTATUS=`git status --porcelain`
    GITMOD=""
    if [ ! -z "$GITSTATUS" ]; then
          GITMOD="-modified"
    fi
}


function testcc() {
    if [ ! -d src ]; then
      fail "src dir does not exists"
    else 
      pass "src dir exits"
    fi
    if [ ! -f $PRO_FILE ]; then
      fail ".pro file does not exists: " $PRO_FILE
    else 
      pass ".pro file: " $PRO_FILE
    fi



    info "Creating: $BUILDPATH"
    mkdir -p $BUILDPATH
    cd $BUILDPATH
    
    info "Generate makefile with coverage option"
    qmake $SOURCE_DIR/$PRO_FILE "QMAKE_CXXFLAGS += --coverage" "QMAKE_LFLAGS += --coverage"

    info "Remove previous *.gcda files"
    find $BUILDPATH -name *.gcda -exec rm "{}" \;

    info "Build"
    make -j4 # build

    info "Run unittests"
    make check test


    echo "--------------------"
    echo "Source           : $SRCDIR"
    echo "Build            : $BUILDPATH"
    echo "Makeflags        : $MAKEFLAGS"
    echo "COVERAGE_DIR     : $COVERAGE_DIR"
    echo "SOURCE_DIR       :  $SOURCE_DIR"
    echo "HTML_RESULTS_DIR : $HTML_RESULTS_DIR"
    echo "COVERAGE_FILTER  : $COVERAGE_FILTER"
    echo "--------------------"

    #exit 0

    info "Create dummy files to ensure not tested class are acounted"
    find $BUILDPATH -name "*.gcno" -exec sh -c 'touch -a "${1%.gcno}.gcda"' _ {} \;
    mkdir -p $COVERAGE_DIR

    info "Make dir 'codecoverage' clean"
    rm -f $COVERAGE_DIR/*.*
    rm -rf $HTML_RESULTS_DIR


    info "Copy .gc?? file from $BUILDPATH into 'codecoverage' dir"
    find $BUILDPATH -name *.gc?? -exec cp "{}" $COVERAGE_DIR \;


    ##########################
    # RUN LCOV
    ##########################

    # ${1} is the directory containing the .gcno files (%{PROJBUILD} in Qt Creator)
    LCOV=lcov
    GENHTML=genhtml
    BROWSER="/Applications/Google Chrome.app/Contents/MacOS/Google Chrome"
    info "Generating initial code coverage info report"
    cd $BUILDPATH
    ${LCOV} -d ${BUILDPATH} -c -o ${COVERAGE_DIR}/coverage.info

    info "Filtering code coverage info report"
    ${LCOV} -r ${COVERAGE_DIR}/coverage.info $COVERAGE_FILTER -o ${COVERAGE_DIR}/coverage-filtered.info

    info "Creating html output"
    mkdir -p ${HTML_RESULTS_DIR}
    cd $BUILDPATH
    "${GENHTML}" -o "${HTML_RESULTS_DIR}" "${COVERAGE_DIR}/coverage-filtered.info"

    info "Reseting coverage counts"
    "${LCOV}" -d "${COVERAGE_DIR}" -z

    if [ "$1" == "open" ]; then
      open "${HTML_RESULTS_DIR}/index.html" &
    fi
}

# ################
# Output funcitons
# ################
RED='\033[0;31m'
GREEN='\033[0;32m'
BLUE='\033[0;34m'
NC='\033[0m' # No Color

function info () {
  echo -e "[${BLUE} $@ ${NC}]"
}

function pass() {
  echo -e "[${GREEN}PASS${NC}] $@"
}

function fail() {
  FAIL=1; echo -e "[${RED}FAIL${NC}] $@"
}

# Run main function
main "$@"