#!/usr/bin/env bash

set -euo pipefail
IFS=$'\n\t'

readonly LOG_FILE="/tmp/pastebin_$(date --iso-8601=minutes).log"
function log_info()    { echo "[INFO   ]    $@" | tee -a "$LOG_FILE" >&2 ; }
function log_warning() { echo "[WARNING]    $@" | tee -a "$LOG_FILE" >&2 ; }
function log_error()   { echo "[ERROR  ]    $@" | tee -a "$LOG_FILE" >&2 ; }
function log_fatal()   { echo "[FATAL  ]    $@" | tee -a "$LOG_FILE" >&2 ; exit 1 ; }

DEV_KEY=""
LANGUAGE=""

USERNAME=""

function check_prerequisites() {
    function check() {
        [[ ! -z $(which "${1}") ]] || log_fatal "${1} does not exist; please install"
    }

    for req in tee curl; do
        check "${req}"
    done
}

function parse_config() {
    readonly CFG_FILE=.pastebinrc

    if [ -f "/home/${USER}/${CFG_FILE}" ]; then
        source <(grep = "/home/${USER}/${CFG_FILE}")
        DEV_KEY="${devkey}"
        LANGUAGE="${language}"
        USERNAME="${username}"
    else
        log_fatal "No config file found; exiting."
    fi
}

function generate_user_key() {
    read -s -p "Password: " password
    echo

    log_info "${password}"
}

function upload() {
    declare -r PASTEBIN_URL="https://pastebin.com/api/api_post.php"

    curl --silent --show-error --data "api_dev_key=${DEV_KEY}&api_option=paste&api_paste_format=${LANGUAGE}" --data-urlencode "api_paste_code=${CONTENTS}" \
        "${PASTEBIN_URL}"
}

check_prerequisites
parse_config

generate_user_key

CONTENTS=$(cat /dev/stdin)