#! /usr/bin/env bats

# This is a test file for use with the bats testing framework
# https://github.com/bats-core/bats-core
# On Debian: apt install bats

function setup {
    ORIGDIR="$(pwd)"

    # If no $FORGEBUILD is supplied in ENV, use the default
    # (otherwise you can't `bats ./tests/` manually)
    [ -z "$FORGEBUILD" ] && FORGEBUILD="forgebuild"

    # Ensure output from previous test does not exist
    # (in case something crashed)
    clean

    # Setup simple git repository
    GITREPO="$(mktemp -d)"
    cd $GITREPO
    git init
    echo "first commit" > README
    git add README
    git commit -m "first commit"
    
    # Setup forgebuild tasks
    FORGEBUILDDIR="$(mktemp -d)"
    echo "$GITREPO" > $FORGEBUILDDIR/time.source
    echo "date +%s%N > /tmp/forgebuild-time" > $FORGEBUILDDIR/time
    chmod +x $FORGEBUILDDIR/time
    echo "$GITREPO" > $FORGEBUILDDIR/host.source
    echo "cat \$GITBUILDCONF/entry > /tmp/forgebuild-host" > $FORGEBUILDDIR/host
    chmod +x $FORGEBUILDDIR/host
    
    # Setup settings
    mkdir $FORGEBUILDDIR/config
    echo "default" > $FORGEBUILDDIR/config/entry
    mkdir $FORGEBUILDDIR/$HOSTNAME
    echo "host" > $FORGEBUILDDIR/$HOSTNAME/entry
}

function teardown {
    cd $ORIGDIR
    clean
}

function clean {
    if [ -d $GITREPO ]; then rm -rf $GITREPO; fi
    if [ -d $FORGEBUILDDIR ]; then rm -rf $FORGEBUILDDIR; fi
    if [ -f /tmp/forgebuild-time ]; then rm /tmp/forgebuild-time; fi
    if [ -f /tmp/forgebuild-host ]; then rm /tmp/forgebuild-host; fi
}

function setup_submodule {
    SUBMODULE="$(mktemp -d)"
    cd $SUBMODULE
    git init
    echo "SUB" > README
    git add README
    git commit -m "first commit"

    cd $GITREPO
    git submodule add $SUBMODULE sub
    git commit -m "add submodule"
}

@test "repository is cloned" {
    $FORGEBUILD -b $FORGEBUILDDIR time
    [ -f $FORGEBUILDDIR/.time/README ]
}

@test "first run triggers task" {
    $FORGEBUILD -b $FORGEBUILDDIR time
    [ -f /tmp/forgebuild-time ]
}

@test "no update does not trigger task" {
    $FORGEBUILD -b $FORGEBUILDDIR time
    [ -f /tmp/forgebuild-time ]
    TIME="$(cat /tmp/forgebuild-time)"
    $FORGEBUILD -b $FORGEBUILDDIR time
    NEWTIME="$(cat /tmp/forgebuild-time)"
    [[ "$TIME" = "$NEWTIME" ]]
}

@test "forced run triggers task" {
    $FORGEBUILD -b $FORGEBUILDDIR time
    [ -f /tmp/forgebuild-time ]
    TIME="$(cat /tmp/forgebuild-time)"
    $FORGEBUILD -f -b $FORGEBUILDDIR time
    NEWTIME="$(cat /tmp/forgebuild-time)"
    [[ "$TIME" != "$NEWTIME" ]]
}

@test "update triggers task" {
    $FORGEBUILD -b $FORGEBUILDDIR time
    [ -f /tmp/forgebuild-time ]
    TIME="$(cat /tmp/forgebuild-time)"
    cd $GITREPO
    touch NEWFILE
    git add NEWFILE
    git commit -m "second commit"

    $FORGEBUILD -b $FORGEBUILDDIR time
    NEWTIME="$(cat /tmp/forgebuild-time)"

    [[ "$TIME" != "$NEWTIME" ]]
}

@test "host-based settings are loaded" {
    $FORGEBUILD -b $FORGEBUILDDIR host
    [[ "$(cat /tmp/forgebuild-host)" = "host" ]]
}

@test "unknown host uses default settings" {
    HOST="UNKNOWN" $FORGEBUILD -b $FORGEBUILDDIR host
    [[ "$(cat /tmp/forgebuild-host)" = "default" ]]
}

@test "submodule is cloned" {
    setup_submodule
    $FORGEBUILD -b $FORGEBUILDDIR time
    [ -f $FORGEBUILDDIR/.time/sub/README ]
    [[ "$(cat $FORGEBUILDDIR/.time/sub/README)" = "SUB" ]]
}

@test "first submodule run triggers task" {
    setup_submodule
    $FORGEBUILD  -b $FORGEBUILDDIR time
    [ -f /tmp/forgebuild-time ]
}

@test "submodule update does not trigger task by default" {
    setup_submodule
    $FORGEBUILD -b $FORGEBUILDDIR time
    [ -f /tmp/forgebuild-time ]
    TIME="$(cat /tmp/forgebuild-time)"

    cd $SUBMODULE
    echo "new stuff" > NEWFILE
    git add NEWFILE
    git commit -m "second commit"

    $FORGEBUILD -b $FORGEBUILDDIR time
    NEWTIME="$(cat /tmp/forgebuild-time)"

    [[ "$TIME" = "$NEWTIME" ]]
}