#!/usr/bin/env bash

# planup: Update your happynetbox.com plan file via the command-line
#
# This script was developed based on the methods described in
# "Introduction Finger" (20 Aug 2026) by bboysoul
# https://www.bboy.app/2026/08/20/introduction-finger/
#
# Copyright 2026 https://640kb.neocities.org
# Blue Oak Model License 1.0.0 <https://blueoakcouncil.org/license/1.0.0>
#
# 02 Sep 2026: 8-bit upload testing passed. Previous comment removed, others tweaked.
# 26 Aug 2026: Initial release. 7-bit support tested only.

# ===========================================================================
# CONFIGURATION : START
# ===========================================================================

USERNAME="Your Username"                 # Your happynetbox username
PASSWORD="Your Password"                 # Password
EDITOR="tilde"                           # Change this to your preferred editor

HOSTNAME="happynetbox.com"               # The server name. Do not modify.
COOKIE_FILE="$HOME/.happynetbox.cookie"  # The cookie file name

# ===========================================================================
# CONFIGURATION : END
# ===========================================================================


# --- Tries to access the edit page using the cookie; if we see "textarea", the cookie is valid ---
check_cookie() {
    if [ -f "$COOKIE_FILE" ]; then
        if curl -s -b "$COOKIE_FILE" "https://$HOSTNAME/post/$USERNAME" | grep -q "textarea"; then
            return 0
        fi
    fi
    return 1
}

# --- (1) connects (2) fetches .plan (3) strips out additional generated output using sed ---
# --- If happynetbox changes its additional output, this section would need tweaking ---
fetch_plan() {
    exec 3<>"/dev/tcp/$HOSTNAME/79"
    printf '%s\r\n' "$USERNAME" >&3
    cat <&3 | sed '/^---$/,$d' | sed '/^want another?/,$d' | sed '1{/^$/d}'
    exec 3<&-
    exec 3>&-
}

# --- (1) Send Credentials (2) Receive Cookie (3) Save Cookie ---
login() {
    echo "Logging in..."
    curl -s -c "$COOKIE_FILE" -X POST "https://$HOSTNAME/login" \
        -d "handle=$USERNAME&password=$PASSWORD" > /dev/null
}

# --- Supports upload of entire code page 437 (UTF-8 encoded) ---
upload_plan() {
    local content="$1"
    echo "Uploading updated plan..."
    curl -s -b "$COOKIE_FILE" -X POST "https://$HOSTNAME/post/$USERNAME" \
        --data-urlencode "content=$content" \
        | grep -q "updated=true" && echo " Plan updated!" || echo " Upload failed."
}

main() {
    # --- check_cookie() result, if not valid... the login() function is called ---
    if ! check_cookie; then
        echo "Cookie expired or missing. Logging in..."
        login
    fi
    
    TEMP_FILE="/tmp/plan_edit_$$.tmp"
    fetch_plan > "$TEMP_FILE" 2>/dev/null

    $EDITOR "$TEMP_FILE"
    
    NEW_CONTENT=$(cat "$TEMP_FILE")
    upload_plan "$NEW_CONTENT"
    
    rm -f "$TEMP_FILE"
}

main