#!/bin/bash
set -o pipefail -o errexit

# Error handling
handle_error() {
    read -n1 -r -p "FAILED: line $1, exit code $2. Press any key to exit..." _
    exit 1
}
trap 'handle_error $LINENO $?' ERR

# Ask for ref if not provided
if [[ -z "$WEB_REF" ]]; then
  read -rp "Input a git ref (commit hash, branch name, tag name, 'master'): " input
  WEB_REF="$input"
fi

# Ask if the result will be uploaded to github releases
if [[ -z $UPLOAD_VAULT ]]; then
  read -rp "Upload the result to GitHub Releases? (y/n): " input
  UPLOAD_VAULT="$input"
fi

# If a patch was not provided, try to choose one
if [[ -z $PATCH_NAME ]]; then
    # If a patch with the same name as the ref exists, use it
    if [ -f "patches/$WEB_REF.patch" ]; then
        echo "Patch file found, using that"
        PATCH_NAME="$WEB_REF.patch"
    else
        echo "Patch file not found, using latest"
        # If not, use the latest one
        PATCH_NAME="$(find patches -printf "%f\\n" | sort -V | tail -n1)"
    fi
fi

echo "Building git ref: $WEB_REF"
echo "Using patch: $PATCH_NAME"

VAULT_FOLDER=web-vault
OUTPUT_FOLDER=builds
OUTPUT_NAME="$OUTPUT_FOLDER/bw_web_$WEB_REF.tar.gz"
OUTPUT_MSG="$OUTPUT_NAME.text"

mkdir -p "$OUTPUT_FOLDER"

# If this is the first time, clone the project
if [ ! -d "$VAULT_FOLDER" ]; then
    git clone --recursive https://github.com/bitwarden/web.git "$VAULT_FOLDER"
fi

cd $VAULT_FOLDER

# Clean
git checkout -f

# Update branch
git fetch --tags
git pull origin master

# Checkput the branch we want
git checkout "$WEB_REF"
git submodule update --recursive --init

## How to create patches
# git --no-pager diff --no-color --minimal > changes.patch
## How to apply patches
# git apply changes.patch

git apply "../patches/$PATCH_NAME"

# Build
npm install
npm run dist

# Delete debugging map files, optional
#find build -name "*.map" -delete

# Prepare the final archives
cd build
tar -czvf "../../$OUTPUT_NAME" ./* --owner=0 --group=0

cd ../..

if [[ $UPLOAD_VAULT =~ ^[Yy]$ ]]
then
    sed "s/<VERSION>/$WEB_REF/g" release_template.md > "$OUTPUT_MSG"
    # Install from here: https://hub.github.com/
    hub release create -o -a "$OUTPUT_NAME" -F "$OUTPUT_MSG $WEB_REF"
fi