#!/bin/bash

# doc deploy_gen {
# 
# DESCRIPTION
#   deploy_gen - Splits specified image into multiple files using a text file 
#   formatted under the CUE specification
#
# USAGE
#   deploy_gen </path/to/git/dir> <IMAGEID>
# }

deploy_gen() {
    local GITDIR="${1}"
    local IMAGEID="${2}"

    ## breakpointList generator
    # Generates list with cuebreakpoints utility
    local breakpointList=($(cuebreakpoints "${GITDIR}/${IMAGEID}.cue" 2>/dev/null))

    # In the event that breakpointList is empty because image represents only one track, 
    # no split occurs, and returns a 0.
    [[ -z "${breakpointList[@]}" ]] && { cat "${GITDIR}/${IMAGEID}.flac" > ${GITDIR}/split-track01.flac; return 0; }
    
    # Attempts first split. If fails because of lack of CD quality file, retries with modified breakpointList
    if ! printf '%s\n' ${breakpointList[@]} | shntool split "${GITDIR}/${IMAGEID}.flac" -o flac -O always -d "${GITDIR}"; then 
        printf '%s\n' ${breakpointList[@]} | sed s/$/0/ | shntool split "${GITDIR}/${IMAGEID}.flac" -o flac -O always -d "${GITDIR}" 
        [[ $? -ne 0 ]] && return 2 || return 1
    fi

}