#!/bin/bash

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

#################### IMPORTANT ###################
# NEVER try to add dangerous functionalities like:
#   - checkout -b
#   - commit
#   - push
#   - merge
# which updates/writes to the repositories.
# Any update/wtire to repositories 
# MUST be MANUALLY reviewed by developer,
# prior to getting applied, LINE BY LINE.
#
#################### IMPORTANT ###################
# Also all the branches on each repository
# MUST be created from the 
#   - STORY on JIRA of the current feature/bug,
# for the code review to be created automatically.
#
##################################################

LINE_SEPARATOR="--------------------------------------------------------------------------------"
ERROR_CHECKOUT_FAIL=1

repositories=(
    "."
    "common"
    "config"
    "plugins"
    "resources"
    "scripts"
)

function help() {
    echo "usage:"
    echo "$0 <options>"
    echo "      pull"
    echo "      pullsync    <branch>"
    echo "      sync        <branch>"
    echo "      status"
}

function pull() {
    for repo in "${repositories[@]}"; do
        echo " $LINE_SEPARATOR : $repo pull"
        echo "git pull $repo"
        git -C "$repo" pull
    done
}

function checkout() {
    if [[ "$1" != "" ]]; then
        echo " $LINE_SEPARATOR : checkout $1"
        git checkout "$1"
        if (( $? )); then
            echo "ERROR_CHECKOUT_FAIL"
            exit $ERROR_CHECKOUT_FAIL
        fi
    fi

    local _branch="$(git branch --show-current)"
    echo " $LINE_SEPARATOR : checkout $_branch"
    for repo in "${repositories[@]}"; do
        echo " $LINE_SEPARATOR : $repo checkout"
        git -C "$repo" checkout "$_branch"
        if (( $? )); then
            echo " +++++ ERROR check out to staging"
            git -C "$repo" checkout staging
        fi
    done
}

function status() {
    # git status
    for repo in "${repositories[@]}"; do
        echo " $LINE_SEPARATOR : $repo status"
        git -C "$repo" status
    done
}

case $1 in
    pull)
        pull
    ;;
    sync)
        checkout "$2"
    ;;
    pullsync)
        pull
        checkout "$2"
    ;;
    status)
        status
    ;;
    *)
        help
    ;;
esac