<?php

require_once('vendor/was/utilities/src/IO/IO.php');

###########################################################################
##  Copyright (C) Wizardry and Steamworks 2016 - License: GNU GPLv3      ##
###########################################################################
function storeAvatarConversation($firstname, $lastname, $message, $chatFile, $lines) {
    ####
    # I. Initialize an array to store the chat lines.
    $data = array();

    ####
    # II. If the file exists, trim it to the number of chat lines.
    switch(file_exists($chatFile)) {
        case TRUE:
            # Open the chat log and trim the lines to the configured line size.
            $data = explode(
                PHP_EOL, 
                atomized_get_contents(
                        $chatFile
                )
            );
            while(sizeof($data) > $lines)
                array_shift($data);
            break;
    }

    ####
    # III. Add the line at the end.
    array_push(
        $data, 
        empty($lastname) ? 
            sprintf(
                "[%s:%s] %s : %s",
                date("H"),
                date("i"),
                $firstname, # Don't normalize the name.
                $message
            ) :
            sprintf(
                "[%s:%s] %s %s : %s",
                date("H"),
                date("i"),
                ucfirst(
                    strtolower(
                        $firstname
                    )
                ),
                ucfirst(
                    strtolower(
                        $lastname
                    )
                ),
                $message
            )
    );

    ####
    # IV. Now dump the array to the file.
    atomized_put_contents(
        $chatFile, 
        implode(
            PHP_EOL, 
            $data
        )
    );
}