#!/bin/bash
set -o nounset -o pipefail -o errexit
cd "$(dirname "$0")/../.."

################################################################################
# Master one liner interaction with deploying files
#
# Build the assets, then add and commit the files to git
# Then uploads the current branch to the live site, staging site and to GitLab
#
# USAGE:
# Default usage  - ./scripts/deploy/build.sh
#
#                  This will add and commit files to git with the message
#                  Committing changes, and then push the changes to gitlab and
#                  staging
#
# Remove push    - ./scripts/deploy/build.sh -g -s
#
#                  There are two flags with which you can stop pushing to
#                  their respective remotes
#
#                  -g means don't push to gitlab
#                  -s means don't push to staging
#
# Deploy to live - ./scripts/deploy/build.sh -l
#
#                  This is the same behaviour as the default, except it will
#                  also push to the live site
#
# Build assets   - ./scripts/deploy/build.sh -b
#
#                  This is the same behaviour as the default, except it will
#                  also run the builder (normally gulp) before adding the files
#                  to git
#
# Custom Message - ./scripts/deploy/build.sh -m "Custom message"
#
#                  This is the same behaviour as the default, except it will
#                  also add a custom git commit message instead of the default
#
# Note: all these flags are combinable, example below with every flag
#
#       ./scripts/deploy/build.sh -b -m "Custom message" -gsl
#
# Note: If dotfiles are installed, you can also run a command instead of
#
#       ./scripts/deploy/build.sh
#
#       which is as follows:
#
#       t deploy build
#
#
################################################################################

message="Committing changes"
build="false"
gitlab="true"
staging="true"
live="false"
colour="\e[32m" # Green
reset="\e[0m"

# Add remotes if they don't already exist
source "scripts/deploy/_config.sh"

gitlaburl="($(git config remote.origin.url))"
stagingurl="($(git config remote.staging.url))"
liveurl="($(git config remote.live.url))"

# Get all the flags for the script,
# loop through them and then do override the necessary variables
while getopts "bm:gslc:" flag; do
  case "${flag}" in
    b) build="true" ;;
    m) message="${OPTARG}" ;;
    g) gitlab="false" ;;
    s) staging="false" ;;
    l) live="true" ;;
    c) colour="${OPTARG}" ;;
    *) error "Unexpected option ${flag}" ;;
  esac
done

#---------------------------------------
# Run gulp build
#---------------------------------------
if [ ! -z "$build" -a "$build" != "false" ]; then
    gulp build
fi

#---------------------------------------
# Add the files to git
#---------------------------------------
git add .

#---------------------------------------
# Commit the files to git
#---------------------------------------
git commit -m "$message"

#-------------------------------------------------------------------------------
# Deploy the changes to gitlab, staging and live depending on flags
#
# Defaults to all
#-------------------------------------------------------------------------------

#---------------------------------------
# GitLab
#---------------------------------------
if [ ! -z "$gitlab" -a "$gitlab" != "false" ]; then
    echo -en "${colour}Deploying to origin ${gitlaburl}...${reset}\n"
    git push origin HEAD
    echo
fi

#---------------------------------------
# Staging
#---------------------------------------
if [ ! -z "$staging" -a "$staging" != "false" ]; then
    echo -en "${colour}Deploying to staging ${stagingurl}...${reset}\n"
    git push staging HEAD
fi

#---------------------------------------
# Live
#---------------------------------------
if [ ! -z "$live" -a "$live" != "false" ]; then
    echo -en "${colour}Deploying to live ${liveurl}...${reset}\n"
    git push live HEAD
fi