#!/bin/bash -
# echo "POST-CHECKOUT"
# echo "PREV-HEAD=$1"
# echo "CURR-HEAD=$2"
# echo "BRANCH-CHECKOUT=$3"

readonly CHECKOUT_HISTORY_FILE="/opt/app/tools/atbupdate/checkout_history"
readonly GIT_UPDATE_LOG="/opt/app/tools/atbupdate/update_log.csv"
readonly OPKG_COMMANDS_FILE="/etc/psa_update/opkg_commands"

write_log_file () {
    if [ -f $CHECKOUT_HISTORY_FILE ]; then
        # repo: customer_281
        readonly repo=$(basename $(git rev-parse --show-toplevel))
        # branch: customer_281:HEAD->zg1/zone1,origin/zg1/zone1 
        readonly branch=$(git log --graph --all --decorate $2 | head -n 1 | sed -E -e 's/(.*?)\((.*)\)/\2/g' | sed -E -e s/[[:space:]]//g)
        readonly line="$repo:$branch"
        readonly now="$(date +%Y-%m-%dT%T)"
        if ! grep -Eq "$line" $CHECKOUT_HISTORY_FILE; then
            # line not found. first checkout of this branch (on this PSA).
            # mark dc and print-templates to be downloaded by update-tool.
            echo "DOWNLOAD, /etc/dc/dc2c.bin, $now, N/A" >> $GIT_UPDATE_LOG
            echo "DOWNLOAD, /etc/psa_config/DC2C_print01.json, $now, N/A" >> $GIT_UPDATE_LOG
            echo "DOWNLOAD, /etc/psa_config/DC2C_print02.json, $now, N/A" >> $GIT_UPDATE_LOG
            echo "DOWNLOAD, /etc/psa_config/DC2C_print03.json, $now, N/A" >> $GIT_UPDATE_LOG
            echo "DOWNLOAD, /etc/psa_config/DC2C_print04.json, $now, N/A" >> $GIT_UPDATE_LOG
            echo "DOWNLOAD, /etc/psa_config/DC2C_print05.json, $now, N/A" >> $GIT_UPDATE_LOG
            echo "DOWNLOAD, /etc/psa_config/DC2C_print06.json, $now, N/A" >> $GIT_UPDATE_LOG
            echo "DOWNLOAD, /etc/psa_config/DC2C_print07.json, $now, N/A" >> $GIT_UPDATE_LOG
            echo "DOWNLOAD, /etc/psa_config/DC2C_print08.json, $now, N/A" >> $GIT_UPDATE_LOG
            echo "DOWNLOAD, /etc/psa_config/DC2C_print09.json, $now, N/A" >> $GIT_UPDATE_LOG
            echo "DOWNLOAD, /etc/psa_config/DC2C_print10.json, $now, N/A" >> $GIT_UPDATE_LOG
            echo "DOWNLOAD, /etc/psa_config/DC2C_print11.json, $now, N/A" >> $GIT_UPDATE_LOG
            echo "DOWNLOAD, /etc/psa_config/DC2C_print12.json, $now, N/A" >> $GIT_UPDATE_LOG
            echo "DOWNLOAD, /etc/psa_config/DC2C_print13.json, $now, N/A" >> $GIT_UPDATE_LOG
            echo "DOWNLOAD, /etc/psa_config/DC2C_print14.json, $now, N/A" >> $GIT_UPDATE_LOG
            echo "DOWNLOAD, /etc/psa_config/DC2C_print15.json, $now, N/A" >> $GIT_UPDATE_LOG
            echo "DOWNLOAD, /etc/psa_config/DC2C_print16.json, $now, N/A" >> $GIT_UPDATE_LOG
            echo "DOWNLOAD, /etc/psa_config/DC2C_print17.json, $now, N/A" >> $GIT_UPDATE_LOG
            echo "DOWNLOAD, /etc/psa_config/DC2C_print18.json, $now, N/A" >> $GIT_UPDATE_LOG
            echo "DOWNLOAD, /etc/psa_config/DC2C_print19.json, $now, N/A" >> $GIT_UPDATE_LOG
            echo "DOWNLOAD, /etc/psa_config/DC2C_print20.json, $now, N/A" >> $GIT_UPDATE_LOG
            echo "DOWNLOAD, /etc/psa_config/DC2C_print29.json, $now, N/A" >> $GIT_UPDATE_LOG
            echo "DOWNLOAD, /etc/psa_config/DC2C_print32.json, $now, N/A" >> $GIT_UPDATE_LOG
            echo "DOWNLOAD, /etc/psa_config/DC2C_device.json, $now, N/A" >> $GIT_UPDATE_LOG
            echo "DOWNLOAD, /etc/psa_config/DC2C_cash.json, $now, N/A" >> $GIT_UPDATE_LOG
            echo "DOWNLOAD, /etc/psa_config/DC2C_conf.json, $now, N/A" >> $GIT_UPDATE_LOG
            if [ -f "$OPKG_COMMANDS_FILE" ]; then
                if grep -qE . "${OPKG_COMMANDS_FILE}"; then
                    readarray opkg_commands < <(cat $OPKG_COMMANDS_FILE)
                    for opkg_c in "${opkg_commands[@]}"; do
                        # check for lines longer than 'opkg '
                        if [ "${#opkg_c}" -gt 4 ]; then
                            # comment: spaces, at least one '#'
                            grep -qE '^[[:space:]]*#+.*$' <<< "$opkg_c" && continue
                            echo -n "EXECUTE, $opkg_c, $now, N/A" | tr -d '\n\r' >> $GIT_UPDATE_LOG 2>&1
                            echo "" >> $GIT_UPDATE_LOG 2>&1
                        fi
                    done
                fi
            fi
            echo "$line" >> $CHECKOUT_HISTORY_FILE
        else
            echo "Found existing line: $line. Do nothing"
        fi
        # echo "$line @$now" >> $CHECKOUT_HISTORY_FILE
    else
        echo "*******************************************************"
        echo "     $CHECKOUT_HISTORY_FILE DOES NOT EXIST !!!         "
        echo "*******************************************************"
    fi
}

write_log_file