#!/bin/bash

# Reinstall pacman.conf, downloading it if online or using a local copy if offline.

echo
echo "Downloading Latest pacman.conf..."
echo

# Define the working directory (ensure it's set)
workdir="${workdir:-/tmp}"  # Default to /tmp if $workdir is not set

Online=0
file_boolean=0

# Function to check if the system has network connectivity
check_connectivity() {
    local test_ip="8.8.8.8"
    local test_count=1

    # Try to ping the test IP
    if ping -c "$test_count" "$test_ip" > /dev/null 2>&1; then
        echo "System is Online!"
        Online=1
    else
        echo "System is Offline!"
        Online=0
    fi
}

# Function to check if the required pacman.conf file exists locally
check_file() {
    local file="/usr/local/share/snigdhaos/pacman.conf"
    if [[ -f "$file" ]]; then
        echo "$file Found."
        file_boolean=1
    else
        echo "$file Not Found!"
        file_boolean=0
    fi
}

# Check connectivity and file existence
check_connectivity
check_file

# If the system is online, download the latest pacman.conf
if [ "$Online" -eq 1 ]; then
    echo "Downloading pacman.conf..."
    if ! sudo wget -q https://raw.githubusercontent.com/Snigdha-OS/snigdhaos-archiso/refs/heads/master/archiso/pacman.conf -O "$workdir/etc/pacman.conf"; then
        echo "Error: Failed to download pacman.conf!"
        exit 1
    fi
fi

# If the system is offline and the local pacman.conf file exists, copy it
if [ "$Online" -eq 0 ] && [ "$file_boolean" -eq 1 ]; then
    echo "Copying local pacman.conf..."
    if ! sudo cp /usr/local/share/snigdhaos/pacman.conf /etc/pacman.conf; then
        echo "Error: Failed to copy pacman.conf!"
        exit 1
    fi
    echo "pacman.conf copied successfully!"
fi

# If offline and the file does not exist locally, notify the user
if [ "$Online" -eq 0 ] && [ "$file_boolean" -eq 0 ]; then
    echo "Run this script once you are back online!"
    exit 1
fi

echo
echo "Task Completed!"
echo