#!/usr/bin/env bash

_conf()
{
    COMPREPLY=()
    local cur="${COMP_WORDS[COMP_CWORD]}"
    local commands="add ls list search edit relink grep help version"
    if [[ $COMP_CWORD -gt 1 ]]; then
        local lastarg="${COMP_WORDS[$COMP_CWORD-1]}"
        case "${COMP_WORDS[1]}" in
            l|ls|list)
                if [[ $lastarg == "-g" ]]; then
                    COMPREPLY=($(compgen -W "$(conf ls -G)" -- ${cur}))
                else
                    COMPREPLY=($(compgen -W "$(conf ls -h 2>&1 | awk -F' ' '{print $1}')" -- ${cur}))
                fi
                ;;
            add|a)
                if [[ $lastarg == "-g" ]]; then
                    COMPREPLY=($(compgen -W "$(conf ls -G)" -- ${cur}))
                else
                    COMPREPLY=($(compgen -f -- ${cur}))
                fi
                ;;
            edit|e|editg|eg)
                COMPREPLY=($(compgen -W "$(conf ls -G) \
                                         $(conf ls -l | xargs -If basename f) \
                                         $(for g in $(conf ls -G); do \
                                             conf ls -g $g | xargs -If basename f | sed -e "s#^#${g}/#"; \
                                           done)" -- ${cur}))
                ;;
            relink)
                COMPREPLY=($(compgen -W "-t --test $(conf ls -G)" -- ${cur}))
                ;;
        esac
    else
        COMPREPLY=($(compgen -W "${commands}" -- ${cur}))
    fi
}

complete -F _conf conf