#!/usr/bin/env bash

readonly base_url="https://api.my-mc.link/"
readonly headers=( -H "Accept: application/json" -H "Content-Type: application/json" -H "x-my-mc-auth: ${MY_MC_API_KEY}" )

declare -rA commands=(
    [hello]='GET'
    [time]='GET'
    [stats]='GET'
    [log]='GET'
    [start]='GET'
    [stop]='GET'
    [restart]='GET'
    [my-link]='GET'
    [my-geyser-link]='GET'
    [my-sftp]='GET'
    [my-hash]='GET'
    [my-geyser-hash]='GET'
    [my-hash-sftp]='GET'
    [list-players]='GET'
    [website]='GET'
    [map]='GET'
    [ban]='POST {"username": "%s"}'
    [unban]='POST {"username": "%s"}'
    [say]='POST {"message": "%s"}'
    [tell]='POST {"username": "%s", "message": "%s"}'
    [console]='POST {"command": "%s"}'
    [give]='POST {"username": "%s", "item": "%s", "amount": "%s"}'
    [install]='POST {"mod": "%s"}'
    [uninstall]='POST {"mod": "%s"}'
    [search]='POST {"mod": "%s"}'
    [mod-list]='GET'
)

function first() {
    echo "$@" | cut --delimiter=" " --fields="-1"
}

function rest() {
    if (( "${#@}" > 1 )); then
        echo "$@" | cut --delimiter=" " --fields="2-"
    fi
}

function usage() {
    printf "API key for my-mc must be exported using 'export MY_MC_API_KEY=<my-mc api key>'\n\n"
    printf "Positional arguments will fill the JSON objects with values from left to right.\n\n"
    printf "COMMANDS:\n"
    for command in "${!commands[@]}"; do
        printf "\t ${command} $(rest ${commands[${command}]})\n"
    done
    printf "\n"
}

# remove command from arg list while preserving quoted strings.
args=("$@")
args=("${args[@]:1}")

for command in "${!commands[@]}"; do
    if [[ "$1" == "${command}" ]]; then
        if [[ "$(first "${commands[$1]}")" == "POST" ]]; then
            curl -sS "${headers[@]}" -X "$(first "${commands[$1]}")" "${base_url}${command}" -d "$(printf "$(rest ${commands[$1]})\n" "${args[@]}")"
            echo ""
        else
            curl -sS "${headers[@]}" -X "$(first "${commands[$1]}")" "${base_url}${command}"
            echo ""
        fi
        exit 0
    fi
done

printf "${0}: invalid option -- $1\n"
usage
exit 1