#! /bin/bash
#importer driglibash
. driglibash-base
echo "<execution of test_git_update.sh>"

REPO_NAME=performance_testing
REMOTE=ssh://git@git.jean-cloud.net:22529/eleonore/performance_testing.git
WITH_SUBMODULE="true"
FILENAMES=("sample0" "sample1") #we do not check for all files
FILENAMES_TAG=("sample0")
FILENAMES_BRANCH=("sample0" "sample1") #we do not check for all files, especially not those specific to the branch.
TAG_NAME=start
BRANCH_NAME=secondary

if [ "$WITH_SUBMODULE" = "true" ]; then
    bash creation_repo.sh -s &> /dev/null
else 
    bash creation_repo.sh &> /dev/null
fi

Help()
{
   echo "
NAME
    test_git_update.sh
SYNOPSIS
    test_git_update.sh [-a] [-h] [-n number]
OPTIONS
    -a excutes all the tests.
    -n number executes test number
    -h prints the help. 
DESCRIPTION
    Tests on the initial cloning
    TEST0: git cloned in an empty directory
    TEST1: git cloned in an empty directory with tag
    TEST2: git cloned in an empty directory with branch

"
}

cloning_check(){
    if  [ -d "./$REPO_NAME" ]; then
    echo "$REPO_NAME has been created"
    cloning_result=0
    local FILENAMES=$@ 
    for FILE in ${FILENAMES[@]}
    do
        if [ -f "./$REPO_NAME/$FILE" ]; then 
            echo "the file $FILE has correctly been imported"
        else 
            echo "the file $FILE could not be imported"
            cloning_result=1
        fi
    done  
else
    cloning_result=1
    echo "the folder $REPO_NAME could not be created"
fi
}

history_check(){
    run cd $REPO_NAME
    history_result=0
    if [ $(git log | grep "commit" | wc -l) -gt 1 ]; then
        echo "Several commits have been saved"
        history_result=1
    elif [ $(git log | grep "commit" | wc -l) = 1 ]; then
        echo "Only the last commit has been saved"
    else
        history_result=1
        echo "Cloning error, incoherent git log"
    fi
    cd ..
}

tag_check(){
    run cd $REPO_NAME
    run git branch > res
    if [ $(grep "no branch" res | wc -l) = 1 ];then
        echo "The tag instruction has been respected"
        tag_result=0
    else
        tag_result=1
        echo "The tag instruction has not been respected"
    fi
    cd ..
}

branch_check(){
     run cd $REPO_NAME
    run git branch > res
    if [ $(grep $BRANCH_NAME res | wc -l) = 1 ];then
        echo "The branch instruction has been respected"
        branch_result=0
    else
        branch_result=1
        echo "The branch instruction has not been respected"
    fi
    cd ..
}

test0 (){
    #CASE 0: git cloned in an empty directory
    section TEST0
    #if it exists, delete the directory
    if [ -d $REPO_NAME ]; then
        rm -rf $REPO_NAME
    fi
    run ./git_update.sh -d $REPO_NAME $REMOTE
    #checks
    cloning_check ${FILENAMES[@]}
    history_check
    case0=$(($history_result+$cloning_result))
    if [ "$case0" = "0" ]; then
        echo "case 0, in a empty directory without history: OK"
    else
        echo "case 0, in a empty directory without history: FAIL"
    fi
}

test1(){
    #CASE 1: git cloned in an empty directory with tag
    section TEST1
    #if it exists, delete the directory
    if [ -d $REPO_NAME ]; then
        run rm -rf $REPO_NAME
    fi
    run ./git_update.sh -d $REPO_NAME -r $TAG_NAME $REMOTE  
    #checks
    cloning_check $FILENAMES_TAG
    history_check
    tag_check 

    case1=$(($cloning_result+$history_result+$tag_result))
    if [ $case1 = 0 ]; then
        echo "case 1, in a empty directory without history, with tag: OK"
    else
        echo "case 1, in a empty directory without history, with tag: FAIL"
    fi
}

test2(){
#CASE 2: git cloned in an empty directory with branch
    section TEST2
    #if it exists, delete the directory
    if [ -d $REPO_NAME ]; then
        run rm -rf $REPO_NAME
    fi
    run ./git_update.sh -d $REPO_NAME -r $BRANCH_NAME $REMOTE  
    #checks
    cloning_check $FILENAMES_BRANCH #we do not check for all files, especially not those specific to the branch.
    history_check
    branch_check 

    case1=$(($cloning_result+$history_result+$branch_result))
    if [ $case1 = 0 ]; then
        echo "case 1, in a empty directory without history, with branch: OK"
    else
        echo "case 1, in a empty directory without history, with branch: FAIL"
    fi
}


while getopts ":hn:a" option; do
   case $option in
      h) # display Help
         Help
         exit;;
      n) 
            TEST_NUM=$OPTARG;;
      a) 
            ALL_TESTS=true;; 
     \?) # Invalid option
         echo "Error: Invalid option here"
         exit;;
   esac
done

if [ "$ALL_TESTS" = "true" ]; then
    test0
    test1 
    test2 
    test3 
    test4 
    test5 
    test6 
    test7 
    test8 
    test9

elif [ -n "$TEST_NUM" ]; then
    case $TEST_NUM in
        0) 
            test0;;
        1)
            test1;;
        2) 
            test2;;
        3) 
            test3;;
        4) 
            test4;;
        5) 
            test5;;
        6)
            test6;;
        7) 
            test7;;
        8) 
            test8;;
        9)
            test9;;
        *)
            echo "Error: Invalid test number"
            die;;
    esac
else
    Help
fi