#!/bin/bash
# dot-project - generate .project files for B2C Commerce cartridges
#
# Usage:
#   dot-project [code_version_directory]
#   dot-project -h
#
# Creates a .project XML file in each subdirectory of the given directory
# (or the current directory), allowing them to be recognized as Salesforce
# B2C Commerce (Demandware) cartridges by Eclipse/UX Studio/Prophet Debugger.
# Each .project file uses the subdirectory name as the project name

_dot_project() (
    local SCRIPT_NAME; SCRIPT_NAME="$(basename "${BASH_SOURCE[0]}")"
    case "${BASH_SOURCE[0]}" in /dev/*|/proc/*) SCRIPT_NAME="" ;; esac
    case "$SCRIPT_NAME" in ""|bash|sh|zsh|dash) SCRIPT_NAME="dot-project" ;; esac

    _error() { echo "[ERR][$SCRIPT_NAME] $*" >&2; }

    _show_help() {
        local s; [ -t 1 ] && s=$'\033[4m'
        local r; [ -t 1 ] && r=$'\033[24m'
        cat <<EOF
NAME
  $SCRIPT_NAME - generate .project files for B2C Commerce cartridges
SYNOPSIS
  $SCRIPT_NAME [${s}code_version_directory${r}]
  $SCRIPT_NAME -h
DESCRIPTION
  Creates a .project XML file in each subdirectory of the given directory
  (or the current directory), allowing them to be recognized as Salesforce
  B2C Commerce (Demandware) cartridges by Eclipse/UX Studio/Prophet Debugger.
  Each .project file uses the subdirectory name as the project name.
OPTIONS
  -h, --help    Show this help message
EXIT STATUS
  0  Success (includes no-op cases: nonexistent dir, write errors
     per-file logged to stderr but not propagated)
  2  Usage error (unknown flag, multiple directories)
EOF
    }

    _expand_short_opts() {
        # $1 = string of short-opt letters that take a value (e.g. "nXHd"); "" for flag-only scripts
        # $2..$N = "$@"
        # Populates _EXPANDED; caller does: set -- "${_EXPANDED[@]}"; unset _EXPANDED
        local value_opts="$1"; shift
        _EXPANDED=()
        local passthru=""
        local arg
        local rest
        local c
        for arg in "$@"; do
            if [ -n "$passthru" ]; then _EXPANDED+=("$arg"); continue; fi
            case "$arg" in
                --)          passthru=1; _EXPANDED+=("$arg") ;;
                --*|-|"")    _EXPANDED+=("$arg") ;;
                -[a-zA-Z]?*)
                    rest="${arg#-}"
                    while [ -n "$rest" ]; do
                        c="${rest%"${rest#?}"}"; rest="${rest#?}"
                        _EXPANDED+=("-$c")
                        case "$value_opts" in *"$c"*)
                            [ -n "$rest" ] && _EXPANDED+=("$rest")
                            rest="" ;;
                        esac
                    done ;;
                *)        _EXPANDED+=("$arg") ;;
            esac
        done
    }

    local code_version=""

    _expand_short_opts "" "$@"
    set -- "${_EXPANDED[@]}"; unset _EXPANDED

    while [ $# -gt 0 ]; do
        case "$1" in
            -h|--help) _show_help; return 0 ;;
            --) shift; [ $# -gt 0 ] && code_version="$1"; break ;;
            -*) _error "Unknown argument '$1'. Run \`$SCRIPT_NAME -h\` for usage"; return 2 ;;
            *)
                if [ -n "$code_version" ]; then
                    _error "Multiple directories specified. Run \`$SCRIPT_NAME -h\` for usage"
                    return 2
                fi
                code_version="$1"; shift ;;
        esac
    done

    # Default to current directory
    code_version="${code_version:-"."}"
    # Create a .project file in each subdirectory (cartridge)
    local cartridge
    for cartridge in "${code_version%"/"}"/*; do # remove trailing slash, if present, to avoid doubling
        if [ -d "$cartridge" ]; then
            local project_file="$cartridge/.project"
            if cat <<DOT_PROJECT_TEMPLATE >"$project_file"; then
<?xml version="1.0" encoding="UTF-8"?>
<projectDescription>
    <name>$(basename "$cartridge")</name>
    <comment></comment>
    <projects>
    </projects>
    <buildSpec>
        <buildCommand>
            <name>com.demandware.studio.core.beehiveElementBuilder</name>
            <arguments>
            </arguments>
        </buildCommand>
    </buildSpec>
    <natures>
        <nature>com.demandware.studio.core.beehiveNature</nature>
    </natures>
</projectDescription>
DOT_PROJECT_TEMPLATE
                echo "Generated $project_file"
            else
                _error "Failed to create $project_file"
            fi
        fi
    done
)

_dot_project "$@"
__dot_project_rc=$?
unset -f _dot_project
if [ -n "${BASH_SOURCE[0]}" ] && [ "${BASH_SOURCE[0]}" != "$0" ]; then
    eval "unset __dot_project_rc; return $__dot_project_rc"
fi
eval "unset __dot_project_rc; exit $__dot_project_rc"