# Bash completion function for importare
# vim: set et sw=4 sts=4 ts=4 ft=sh :

# NOTE: This is still a work in progress, don't expect it to work well or
# properly right now.

_importare() {
    local cur prev opts action

    local action_opts general_opts source_opts
    local install_opts deplist_opts all_opts

    COMPREPLY=()
    cur=${COMP_WORDS[COMP_CWORD]}
    prev=${COMP_WORDS[COMP_CWORD-1]}

    action_opts="--install -i \
        --version -V \
        --help -h"
    general_opts="--log-level \
        --no-colour \
        --no-color \
        --environment -E \
        --compact \
        --no-compact"
    source_opts="--location -l"
    metadata_opts="--description -D \
        --build-dependency -B \
        --run-dependency -R \
        --preserve-metadata -P"
    deplist_opts="--dl-reinstall \
        --dl-reinstall-scm \
        --dl-upgrade \
        --dl-new-slots \
        --dl-downgrade \
        --dl-deps-default \
        --dl-installed-deps-pre \
        --dl-installed-deps-runtime \
        --dl-installed-deps-post \
        --dl-uninstalled-deps-pre \
        --dl-uninstalled-deps-runtime \
        --dl-uninstalled-deps-post \
        --dl-uninstalled-deps-suggested \
        --dl-suggested \
        --dl-circular \
        --dl-blocks \
        --dl-override-masks \
        --dl-fall-back"
    install_opts="--pretend -p \
        --destinations -d \
        --no-config-protection \
        --show-reasons \
        --show-use-descriptions \
        --show-package-descriptions \
        --continue-on-failure \
        --skip-phase \
        --abort-at-phase \
        --skip-until-phase \
        --change-phases-for \
        ${source_opts} \
        ${metadata_opts} \
        ${deplist_opts}"

    all_opts="${action_opts} ${general_opts} ${source_opts} ${metadata_opts} ${deplist_opts} ${install_opts} ${install_opts}"

    local x
    for x in "${COMP_WORDS[@]}" ; do
        case "${x}" in
            --install|-i)
                action="install"
                break
                ;;
            --version|-V|--help|-h)
                action="info"
                break
                ;;
         esac
     done

     case "${cur}" in
         -*)
            local opts=
            [[ -z "${action}" ]] && action="all"
            opts="${action}_opts"

            COMPREPLY=($(compgen -W "${general_opts} ${!opts}" -- "${cur}"))
            return 0
            ;;
        *)
            case "${prev}" in
                ## Enum operators
                --log-level)
                    COMPREPLY=($(compgen -W "debug qa warning silent" -- "${cur}"))
                    return 0
                    ;;
                --show-reasons)
                    COMPREPLY=($(compgen -W "none summary full" -- "${cur}"))
                    return 0
                    ;;
                --show-use-descriptions)
                    COMPREPLY=($(compgen -W "none new changed all" -- "${cur}"))
                    return 0
                    ;;
                --show-package-descriptions)
                    COMPREPLY=($(compgen -W "none new all" -- "${cur}"))
                    return 0
                    ;;
                --continue-on-failure)
                    COMPREPLY=($(compgen -W "if-fetch-only never if-satisfied if-independent always" -- "${cur}"))
                    return 0
                    ;;
                --change-phases-for)
                    COMPREPLY=($(compgen -W "all first last" -- "${cur}"))
                    return 0
                    ;;

                --location|-l)
                    _filedir -d
                    return 0
                    ;;
                    
                --dl-reinstall)
                    COMPREPLY=($(compgen -W "never always if-use-changed" -- "${cur}"))
                    return 0
                    ;;
                --dl-reinstall-scm)
                    COMPREPLY=($(compgen -W "never always daily weekly" -- "${cur}"))
                    return 0
                    ;;
                --dl-upgrade|--dl-new-slots)
                    COMPREPLY=($(compgen -W "always as-needed" -- "${cur}"))
                    return 0
                    ;;
                --dl-downgrade)
                    COMPREPLY=($(compgen -W "as-needed warning error" -- "${cur}"))
                    return 0
                    ;;
                --dl-deps-default|--dl-installed-deps-pre|--dl-installed-deps-runtime|--dl-installed-deps-post|--dl-uninstalled-deps-pre|--dl-uninstalled-deps-runtime|--dl-uninstalled-deps-post|--dl-uninstalled-deps-suggested)
                    COMPREPLY=($(compgen -W "pre pre-or-post post try-post discard" -- "${cur}"))
                    return 0
                    ;;

                --dl-suggested)
                    COMPREPLY=($(compgen -W "show install discard" -- "${cur}"))
                    return 0
                    ;;
                --dl-circular)
                    COMPREPLY=($(compgen -W "error discard" -- "${cur}"))
                    return 0
                    ;;
                --dl-blocks)
                    COMPREPLY=($(compgen -W "accumulate error discard" -- "${cur}"))
                    return 0
                    ;;
                --dl-override-masks)
                    COMPREPLY=($(compgen -W "none tilde-keyword unkeyworded repository license" -- "${cur}"))
                    return 0
                    ;;
                --dl-fall-back)
                    COMPREPLY=($(compgen -W "as-needed-except-targets as-needed never" -- "${cur}"))
                    return 0
                    ;;
                *)
                    case "${action}" in
                        --install|-i)
                            return 0
                            ;;
                    esac
                    ;;
            esac
            ;;
    esac
}

complete -o filenames -F _importare importare