#!/bin/bash

set -e

build_flag="--release"
target_dir="release"
open_result=false
local_only=false
overwrite_local_app=false
bundle_name=""

# Function for displaying help info
help_info() {
  echo "
Usage: ${0##*/} [options] [bundle_name]
Build the application bundle.

Options:
  -d    Compile in debug mode (doesn't currently work without -l)
  -l    Compile for local architecture only and copy bundle to /Applications.
  -o    Open the resulting DMG or the app itself in local mode.
  -f    Overwrite the local app bundle if it exists.
  -h    Display this help and exit.
  "
}

# If -o option is specified, the folder of the resulting dmg will be opened in finder
# If -d is specified, Zed will be compiled in debug mode and the application's path printed
# If -od or -do is specified Zed will be bundled in debug and the application will be run.
while getopts 'dlfoh' flag
do
    case "${flag}" in
        o) open_result=true;;
        d)
            build_flag="";
            target_dir="debug"
            ;;
        l) local_only=true;;
        f) overwrite_local_app=true;;
        h)
           help_info
           exit 0
           ;;
    esac
done

shift $((OPTIND-1))

if [ "$1" ]; then
    bundle_name=$1
fi

export ZED_BUNDLE=true
export MACOSX_DEPLOYMENT_TARGET=10.15.7

cargo_bundle_version=$(cargo -q bundle --help 2>&1 | head -n 1 || echo "")
if [ "$cargo_bundle_version" != "cargo-bundle v0.6.0-zed" ]; then
    cargo install cargo-bundle --git https://github.com/zed-industries/cargo-bundle.git --branch zed-deploy
fi

rustup target add wasm32-wasi

# Deal with versions of macOS that don't include libstdc++ headers
export CXXFLAGS="-stdlib=libc++"

version_info=$(rustc --version --verbose)
host_line=$(echo "$version_info" | grep host)
local_target_triple=${host_line#*: }

if [ "$local_only" = true ]; then
    echo "Building for local target only."
    cargo build ${build_flag} --package zed
    cargo build ${build_flag} --package cli
else
    echo "Compiling zed binary for aarch64-apple-darwin"
    cargo build ${build_flag} --package zed --target aarch64-apple-darwin
    echo "Compiling zed binary for x86_64-apple-darwin"
    cargo build ${build_flag} --package zed --target x86_64-apple-darwin
    echo "Compiling cli binary for aarch64-apple-darwin"
    cargo build ${build_flag} --package cli --target aarch64-apple-darwin
    echo "Compiling cli binary for x86_64-apple-darwin"
    cargo build ${build_flag} --package cli --target x86_64-apple-darwin
fi

echo "Creating application bundle"
pushd crates/zed
channel=$(<RELEASE_CHANNEL)
cp Cargo.toml Cargo.toml.backup
sed \
    -i .backup \
    "s/package.metadata.bundle-${channel}/package.metadata.bundle/" \
    Cargo.toml

if [ "$local_only" = true ]; then
    app_path=$(cargo bundle ${build_flag} --target "$local_target_triple" --select-workspace-root | xargs)
else
    app_path=$(cargo bundle ${build_flag} --target x86_64-apple-darwin --select-workspace-root | xargs)
fi

mv Cargo.toml.backup Cargo.toml
popd
echo "Bundled ${app_path}"

if [ "$local_only" = false ]; then
    echo "Creating fat binaries"
    lipo \
        -create \
        target/{x86_64-apple-darwin,aarch64-apple-darwin}/${target_dir}/Zed \
        -output \
        "${app_path}/Contents/MacOS/zed"
    lipo \
        -create \
        target/{x86_64-apple-darwin,aarch64-apple-darwin}/${target_dir}/cli \
        -output \
        "${app_path}/Contents/MacOS/cli"
fi

echo "Copying WebRTC.framework into the frameworks folder"
mkdir "${app_path}/Contents/Frameworks"
cp -R target/${local_target_triple}/${target_dir}/WebRTC.framework "${app_path}/Contents/Frameworks/"

if [[ -n $MACOS_CERTIFICATE && -n $MACOS_CERTIFICATE_PASSWORD && -n $APPLE_NOTARIZATION_USERNAME && -n $APPLE_NOTARIZATION_PASSWORD ]]; then
    echo "Signing bundle with Apple-issued certificate"
    security create-keychain -p "$MACOS_CERTIFICATE_PASSWORD" zed.keychain || echo ""
    security default-keychain -s zed.keychain
    security unlock-keychain -p "$MACOS_CERTIFICATE_PASSWORD" zed.keychain
    echo "$MACOS_CERTIFICATE" | base64 --decode > /tmp/zed-certificate.p12
    security import /tmp/zed-certificate.p12 -k zed.keychain -P "$MACOS_CERTIFICATE_PASSWORD" -T /usr/bin/codesign
    rm /tmp/zed-certificate.p12
    security set-key-partition-list -S apple-tool:,apple:,codesign: -s -k "$MACOS_CERTIFICATE_PASSWORD" zed.keychain
    /usr/bin/codesign --force --deep --timestamp --options runtime --entitlements crates/zed/resources/zed.entitlements --sign "Zed Industries, Inc." "${app_path}" -v
    security default-keychain -s login.keychain
else
    echo "One or more of the following variables are missing: MACOS_CERTIFICATE, MACOS_CERTIFICATE_PASSWORD, APPLE_NOTARIZATION_USERNAME, APPLE_NOTARIZATION_PASSWORD"
    echo "Performing an ad-hoc signature, but this bundle should not be distributed"
    codesign --force --deep --entitlements crates/zed/resources/zed.entitlements --sign - "${app_path}" -v
fi

if [ "$target_dir" = "debug" ]; then
    if [ "$open_result" = true ]; then
        open "$app_path"
    else
        echo "Created application bundle:"
        echo "$app_path"
    fi
    exit 0
fi

if [ "$local_only" = true ]; then
    # If bundle_name is not set or empty, use the basename of $app_path
    if [ -z "$bundle_name" ]; then
        bundle_name=$(basename "$app_path")
    else
        # If bundle_name doesn't end in .app, append it
        if [[ "$bundle_name" != *.app ]]; then
            bundle_name="$bundle_name.app"
        fi
    fi

    if [ "$overwrite_local_app" = true ]; then
        rm -rf "/Applications/$bundle_name"
    fi
    mv "$app_path" "/Applications/$bundle_name"

    if [ "$open_result" = true ]; then
        open "/Applications/$bundle_name"
    else
        echo "Installed application bundle:"
        echo "/Applications/$bundle_name"
    fi
else
    echo "Creating DMG"
    dmg_target_directory="target/${target_dir}"
    dmg_source_directory="${dmg_target_directory}/dmg"
    dmg_file_path="${dmg_target_directory}/Zed.dmg"

    rm -rf ${dmg_source_directory}
    mkdir -p ${dmg_source_directory}
    mv "${app_path}" "${dmg_source_directory}"

    ln -s /Applications ${dmg_source_directory}
    hdiutil create -volname Zed -srcfolder "${dmg_source_directory}" -ov -format UDZO "${dmg_file_path}"
    # If someone runs this bundle script locally, a symlink will be placed in `dmg_source_directory`.
    # This symlink causes CPU issues with Zed if the Zed codebase is the project being worked on, so we simply remove it for now.
    rm ${dmg_source_directory}/Applications

    echo "Adding license agreement to DMG"
    npm install --global dmg-license minimist
    dmg-license script/eula/eula.json "${dmg_file_path}"

    if [[ -n $MACOS_CERTIFICATE && -n $MACOS_CERTIFICATE_PASSWORD && -n $APPLE_NOTARIZATION_USERNAME && -n $APPLE_NOTARIZATION_PASSWORD ]]; then
        echo "Notarizing DMG with Apple"
        npm install -g notarize-cli
        npx notarize-cli --file "${dmg_file_path}" --bundle-id dev.zed.Zed --username "$APPLE_NOTARIZATION_USERNAME" --password "$APPLE_NOTARIZATION_PASSWORD"
    fi

    if [ "$open_result" = true ]; then
        open $dmg_target_directory
    fi
fi