#!/bin/bash

# ----------------------
# KUDU Deployment Script
# Version: 1.0.2
# ----------------------

# Helpers
# -------

exitWithMessageOnError () {
  if [ ! $? -eq 0 ]; then
    echo "An error has occurred during web site deployment."
    echo $1
    exit 1
  fi
}

# Prerequisites
# -------------

# Verify node.js installed
hash node 2>/dev/null
exitWithMessageOnError "Missing node.js executable, please install node.js, if already installed make sure it can be reached from current environment."

# Setup
# -----

SCRIPT_DIR="${BASH_SOURCE[0]%\\*}"
SCRIPT_DIR="${SCRIPT_DIR%/*}"
ARTIFACTS=$SCRIPT_DIR/../artifacts
KUDU_SYNC_CMD=${KUDU_SYNC_CMD//\"}

NODE_EXE="$PROGRAMFILES\\nodejs\\0.12.6\\node.exe"
NPM_CMD="\"$NODE_EXE\" \"$PROGRAMFILES\\npm\\3.3.9\\node_modules\\npm\\bin\\npm-cli.js\""

if [[ ! -n "$DEPLOYMENT_SOURCE" ]]; then
  DEPLOYMENT_SOURCE=$SCRIPT_DIR
fi

if [[ ! -n "$NEXT_MANIFEST_PATH" ]]; then
  NEXT_MANIFEST_PATH=$ARTIFACTS/manifest

  if [[ ! -n "$PREVIOUS_MANIFEST_PATH" ]]; then
    PREVIOUS_MANIFEST_PATH=$NEXT_MANIFEST_PATH
  fi
fi

if [[ ! -n "$DEPLOYMENT_TARGET" ]]; then
  DEPLOYMENT_TARGET=$ARTIFACTS/wwwroot
else
  KUDU_SERVICE=true
fi

if [[ ! -n "$KUDU_SYNC_CMD" ]]; then
  # Install kudu sync
  echo Installing Kudu Sync
  npm install kudusync -g --silent
  exitWithMessageOnError "npm failed"

  if [[ ! -n "$KUDU_SERVICE" ]]; then
    # In case we are running locally this is the correct location of kuduSync
    KUDU_SYNC_CMD=kuduSync
  else
    # In case we are running on kudu service this is the correct location of kuduSync
    KUDU_SYNC_CMD=$APPDATA/npm/node_modules/kuduSync/bin/kuduSync
  fi
fi

##################################################################################################################################
# Print Versions
# -----

echo -n "Using Node "
eval $NODE_EXE -v

echo -n "Using npm "
eval $NPM_CMD -v

##################################################################################################################################
# Deployment
# ----------

echo Deploying Slackin: $SLACKIN_RELEASE

if [[ "$SLACKIN_RELEASE" -eq "stable" ]]; then
  # Stable

  echo npm install slackin
  cd "$DEPLOYMENT_TARGET"

  # 1. Install from npm
  eval $NPM_CMD install slackin
  exitWithMessageOnError "npm failed"

  cp -r node_modules\\slackin\\* .
  rm -rf node_modules\\slackin

  cd - > /dev/null 

else
  # Latest

  # 1. KuduSync
  if [[ "$IN_PLACE_DEPLOYMENT" -ne "1" ]]; then
    "$KUDU_SYNC_CMD" -v 50 -f "$DEPLOYMENT_SOURCE" -t "$DEPLOYMENT_TARGET" -n "$NEXT_MANIFEST_PATH" -p "$PREVIOUS_MANIFEST_PATH" -i ".git;.hg;.deployment;deploy.sh"
    exitWithMessageOnError "Kudu Sync failed"
  fi

  # 2. Install npm packages
  if [ -e "$DEPLOYMENT_TARGET/package.json" ]; then
    echo npm install
    cd "$DEPLOYMENT_TARGET"
    eval $NPM_CMD install
    exitWithMessageOnError "npm failed"
    cd - > /dev/null
  fi
fi

##################################################################################################################################

# Post deployment stub
if [[ -n "$POST_DEPLOYMENT_ACTION" ]]; then
  POST_DEPLOYMENT_ACTION=${POST_DEPLOYMENT_ACTION//\"}
  cd "${POST_DEPLOYMENT_ACTION_DIR%\\*}"
  "$POST_DEPLOYMENT_ACTION"
  exitWithMessageOnError "post deployment action failed"
fi

echo "Finished successfully."