package.sh

#!/usr/bin/env bash

# The MIT License (MIT)
#
# Copyright (c) 2015-2017 Secret Lab Pty. Ltd. and Yarn Spinner contributors.
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.

LOGFILE="export.log"
OUTDIR="$(pwd)/Builds"

NO_EXAMPLES=0

SOURCE_BUILD=0

CLEAN_ONLY=0

COPY_ONLY=0

CURRENT_BRANCH_NAME="$(git rev-parse --abbrev-ref HEAD)"

set -e

function show_help {
    echo "package.sh: Package Yarn Spinner into a .unitypackage for distribution"
    echo
    echo "Usage: package.sh [-hsSxcC]"
    echo "  -s: Package the source code, not a built DLL"
    echo "  -S: Copy the files into the Unity project and exit"
    echo "  -c: Show the changes since the last tag and exit"
    echo "  -C: Clean the Unity project and exit"
    echo "  -h: Show this text and exit"
    echo "  -x: Do not include example project assets"
}

function show_changes {
    LATEST_TAG=$(git describe --abbrev=0 --tags)
    COMMITS_SINCE_THEN=$(git rev-list "$LATEST_TAG".. --count)

    echo "You are currently on branch $CURRENT_BRANCH_NAME."

    if [ "$COMMITS_SINCE_THEN" -eq "0" ]; then
        echo "There has been no further work since the last tag."
    else
        echo "There have been $COMMITS_SINCE_THEN commits since $LATEST_TAG on this branch:"

        git log "$LATEST_TAG".. --pretty=format:"* %s"
    fi
}

while getopts ":xhsScC" opt; do

    case $opt in
       x) NO_EXAMPLES=1 ;;
       h) show_help ; exit 0 ;;
       s) SOURCE_BUILD=1 ;;
       S) COPY_ONLY=1 ;;
       c) show_changes ; exit 0 ;;
       C) CLEAN_ONLY=1 ;;
       \?) echo "Invalid option: -$OPTARG" >&2; echo; show_help ; exit 0 ;;
    esac

done

if [ "$(uname -s)" != "Darwin" ]; then
    echo "This script only works on OS X."
    exit 1
fi

# Clean the Unity directory of anything ignored
echo "Cleaning Unity project..."
git clean -f -d -X Unity

if [ $CLEAN_ONLY == 1 ]; then
    exit 0
fi

# Build the Yarn Spinner DLL
echo "Building Yarn Spinner..."
./build.sh -b

if [ $SOURCE_BUILD == 1 ]; then
    echo "Removing YarnSpinner.dll..."
    # Remove the built DLL from the Unity project (we built it to ensure that it actually works)
    rm -v "Unity/Assets/YarnSpinner/Code/YarnSpinner.dll"

    echo "Copying Yarn Spinner source in..."
    # Copy the source files in
    cp -v YarnSpinner/*.cs "Unity/Assets/YarnSpinner/Code/"

fi

if [ $COPY_ONLY == 1 ]; then
    exit 0;
fi

# Next, determine what build name this is.

# Strips "v" from tag names
function strip-v () { echo -n "${1#v}"; }

FULL_VERSION=$(strip-v "$(git describe --tags --match 'v[0-9]*' --always --dirty)")

if [ "$CURRENT_BRANCH_NAME" != "master" ]; then
    FULL_VERSION="$FULL_VERSION-$CURRENT_BRANCH_NAME"
fi

if [ $SOURCE_BUILD == 1 ]; then
    FULL_VERSION="$FULL_VERSION-source"
fi

if [ $NO_EXAMPLES == 1 ]; then
    FULL_VERSION="$FULL_VERSION-minimal"
fi

# sanity check that the examples folder is where we expect
expected_examples_location="$(pwd)/Unity/Assets/YarnSpinner/Examples"

if [ ! -d "$expected_examples_location" ]; then
    echo "Failed to find Examples folder at $expected_examples_location"
    exit 1
fi

if [ $NO_EXAMPLES == 1 ]; then
    # move the Examples folder to a temporary location

    temp_folder="$(mktemp -d)/Examples"

    echo "Moving Examples out of the way..."
    mv "$expected_examples_location" "$temp_folder"
    mv "$expected_examples_location.meta" "$temp_folder/"
fi

echo "Packaging Version $FULL_VERSION with Unity..."

OUTFILE="$OUTDIR/YarnSpinner-$FULL_VERSION.unitypackage"

UNITY="/Applications/Unity 2017.1.0f3/Unity.app"
UNITY_BINARY="$UNITY/Contents/MacOS/Unity"

if [[ -f $UNITY_BINARY ]]; then
    echo "Using $UNITY"

    ASSET_PATH="Assets/YarnSpinner"

    # Disable stop-on-error for this - we want better reporting
    set +e
    
    

    "$UNITY_BINARY" -batchmode -projectPath "$(pwd)/Unity" -logFile $LOGFILE -exportPackage "$ASSET_PATH" "$OUTFILE" -quit

    if [ $? -ne 0 ]; then

        echo "Error: Unity failed to build the package (see $LOGFILE)"
        exit 1
    fi

    if [ -f "$OUTFILE" ]; then
        echo "Package created in $OUTFILE"
    else
        echo "Error: Unity reported no error, but the package wasn't created. Check $LOGFILE."
        exit 1
    fi

    # Turn stop-on-error back on
    set -e

    # Tidy up any untracked files (including source files, if this was a source build)
    git clean -f Unity

else
    echo "Error: Unity not found"
    exit 1
fi

if [ $NO_EXAMPLES == 1 ]; then
    # move the Examples folder back into place

    echo "Moving Examples back into position..."
    mv "$temp_folder/Examples.meta" "$expected_examples_location.meta"
    mv "$temp_folder" "$expected_examples_location"
fi

echo

echo "Build complete!"

show_changes