#!/usr/bin/env bash
set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
source "$SCRIPT_DIR/../lib/common.sh"

log_info "Updating XDM configuration"

if ! is_linux; then
    log_error "XDM is only available on Linux"
    exit 1
fi

# Determine XDM config directory based on distro
if [ -d "/etc/X11/xdm" ]; then
    XDM_DIR="/etc/X11/xdm"
elif [ -d "/etc/xdm" ]; then
    XDM_DIR="/etc/xdm"
else
    log_error "XDM config directory not found"
    log_info "Expected /etc/X11/xdm or /etc/xdm"
    exit 1
fi

CONFIG_SOURCE="$SCRIPT_DIR/../config/xdm"

if [ ! -d "$CONFIG_SOURCE" ]; then
    log_error "Source XDM config not found at $CONFIG_SOURCE"
    exit 1
fi

log_info "Copying XDM configuration from $CONFIG_SOURCE to $XDM_DIR"

# Copy files
for file in Xresources Xsetup Xstartup; do
    if [ -f "$CONFIG_SOURCE/$file" ]; then
        log_info "Copying $file"
        maybe_sudo cp "$CONFIG_SOURCE/$file" "$XDM_DIR/$file"

        # Make scripts executable
        if [ "$file" = "Xsetup" ] || [ "$file" = "Xstartup" ]; then
            maybe_sudo chmod +x "$XDM_DIR/$file"
        fi
    else
        log_warn "$file not found in $CONFIG_SOURCE"
    fi
done

log_success "XDM configuration updated"
log_info ""
log_info "To apply changes, restart XDM:"
log_info "  sudo systemctl restart xdm"