#!/bin/bash
source $AK_LIBDIR/_ak_log
source $AK_LIBDIR/_ak_ipfs
source $AK_LIBDIR/_ak_config

_ak_gpg(){
    gpg2 --homedir $AK_GPGHOME $*
}

_ak_gpg_key_import_from_file(){
    if [ -z $1 ]
    then
        _ak_log_error "No argument given"
        exit 1
    fi
    if [ ! -n "$1" ]
    then
        _ak_log_error "Empty argument given"
        exit 1
    fi
    if [ ! -f "$AK_IPFS_ARTIFACTS/$1" ]
    then
        _ak_log_error "File not found"
        exit 1
    fi
    _ak_gpg --import $AK_IPFS_ARTIFACTS/$1 > /dev/null 2>&1
}

_ak_gpg_key_self_get_fingerprint_from_config(){
    _ak_config_show | jq -r '.gpg'
}

_ak_gpg_key_self_get_fingerprint(){
    if [ -z $1 ]
    then
        _ak_ipfs_cat "$(_ak_gpg_key_self_get_fingerprint_from_config)" | \
            _ak_gpg --show-keys 2>&1 | \
            head -n 2 | \
            tail -n 1 | \
            sed 's/ //g'
    else
        exit 1
    fi
}

_ak_gpg_key_get_fingerprint_from_ipfs(){
    if [ -n "$1" ]
    then
        _ak_ipfs_cat "$1" | \
            _ak_gpg --show-keys 2>&1 | \
            head -n 2 | \
            tail -n 1 | \
            sed 's/ //g'
    else
        exit 1
    fi
}

_ak_gpg_sign_detached(){
    if [ ! -z $1 ] && [ -n "$1" ] && [ ! -z $2 ] && [ -n "$2" ]
    then
        _ak_gpg --detach-sign --sign-with $AK_FINGERPRINT --armor --output $1 $2
    else
        exit 1
    fi
}

_ak_gpg_encrypt_sign(){
    if [ ! -z $1 ] && [ -n "$1" ] && [ ! -z $2 ] && [ -n "$2" ] && [ ! -z $3 ] && [ -n "$3" ]
    then
        _ak_gpg --sign-with $AK_FINGERPRINT --encypt -r $3 --armor --output $1 $2
    else
        exit 1
    fi
}

_ak_gpg_encrypt_sign_for_self(){
    if [ ! -z $1 ] && [ -n "$1" ] && [ ! -z $2 ] && [ -n "$2" ]
    then
        _ak_gpg --sign-with $AK_FINGERPRINT --encypt -r $AK_FINGERPRINT --armor --output $1 $2
    else
        exit 1
    fi
}

_ak_gpg_encrypt(){
    if [ ! -z $1 ] && [ -n "$1" ] && [ ! -z $2 ] && [ -n "$2" ] && [ ! -z $3 ] && [ -n "$3" ]
    then
        _ak_gpg --encypt -r $3 --armor --output $1 $2
    else
        exit 1
    fi
}

_ak_gpg_encrypt_for_self(){
    if [ ! -z $1 ] && [ -n "$1" ] && [ ! -z $2 ] && [ -n "$2" ]
    then
        _ak_gpg --encypt -r $AK_FINGERPRINT --armor --output $1 $2
    else
        exit 1
    fi
}

_ak_gpg_verify_signature(){
    if [ ! -z $1 ] && [ -n "$1" ] && [ -f "$1" ] && [ ! -z $2 ] && [ -n "$2" ] && [ -f "$2" ] 
    then
        _ak_gpg --verify $1 $2 > /dev/null 2>&1
    else
        _ak_log_error "Failed to verify detached signature $1 against $2"
        exit 1
    fi
}

_ak_gpg_key_self_export(){
    if [ ! -z $1 ] && [ -n "$1" ]
    then
        _ak_gpg --armour --output $1 --export $AK_FINGERPRINT
    else
        exit 1
    fi
}

_ak_gpg_list_keys(){
    _ak_gpg --list-keys | grep '^ ' | awk '{print $1}'
}

_ak_gpg_select_key(){
    select x in $(_ak_gpg_list_keys | tr '\n' ' ')
    do
        echo $x
        if [ -n "$x" ]
        then
            break
        fi
    done
}