#!/usr/bin/env bash
set -e

STATE_FILE="$HOME/.config/nomarchy/state.json"

# Check if welcome wizard has already been completed
if [ -f "$STATE_FILE" ]; then
    DONE=$(jq -r '.welcome_done' "$STATE_FILE" 2>/dev/null)
    if [ "$DONE" == "true" ]; then
        exit 0
    fi
fi

# Ensure we have a terminal for the wizard
if [ -z "$TERMINAL_WIZARD" ]; then
    export TERMINAL_WIZARD=1
    alacritty -e "$0"
    exit 0
fi

gum style \
	--foreground 212 --border-foreground 212 --border double \
	--align center --width 50 --margin "1 2" --padding "2 4" \
	"Nomarchy" "The Professional NixOS Desktop"

echo "Welcome! Let's personalize your new system."
echo ""

# 1. Select initial theme
echo "Step 1: Choose your starting theme"
nomarchy-theme-set "$(nomarchy-theme-list | gum filter --placeholder 'Select a theme...')" --no-update

# 2. Select initial font
echo "Step 2: Choose your preferred font"
nomarchy-font-set "$(nomarchy-font-list | gum filter --placeholder 'Select a font...')" --no-update

# 3. Select panel position
echo "Step 3: Choose your preferred panel position"
POSITION=$(gum choose "top" "bottom")
nomarchy-state-write panelPosition "$POSITION"

# Skip system-modifying steps in the Live ISO environment
if [[ "$USER" == "nixos" ]]; then
    echo ""
    echo "Live ISO detected. Skipping home.nix generation and git repo check."
    nomarchy-env-update
    nomarchy-state-write welcome_done true --type bool
    gum style --foreground 82 "Setup complete! Enjoy your Nomarchy experience."
    sleep 3
    exit 0
fi

# 4. Starter home.nix
echo ""
echo "Step 4: Starter home.nix"
HOME_NIX="$HOME/.config/home-manager/home.nix"
if [ ! -f "$HOME_NIX" ]; then
    echo "It looks like you don't have a ~/.config/home-manager/home.nix file yet."
    echo "Nomarchy uses this file to manage your user-level packages and settings."
    if gum confirm "Would you like to generate a starter home.nix?"; then
        mkdir -p "$(dirname "$HOME_NIX")"
        cat <<EOF > "$HOME_NIX"
{ pkgs, ... }:
{
  # Nomarchy starter home.nix
  # Add your user packages here.
  home.packages = with pkgs; [
    btop
    fastfetch
    chromium
    # Add more packages here
  ];

  # home.stateVersion = "25.11"; # Consult docs/MIGRATION.md if you change this
}
EOF
        echo "Starter home.nix generated at $HOME_NIX"
    fi
else
    echo "Detected existing home.nix at $HOME_NIX. Skipping generation."
fi

# 5. Setup Local Repo (Crucial for nomarchy-env-update to work)
echo ""
echo "Step 5: Git Repository Check"
echo "Nomarchy relies on a local git repository for declarative updates."
if [ ! -d "/etc/nixos/.git" ]; then
    echo "Warning: /etc/nixos is not a git repository. Declarative updates might fail."
    if gum confirm "Would you like to initialize /etc/nixos as a git repo?"; then
        sudo git -C /etc/nixos init
        sudo git -C /etc/nixos add .
        sudo git -C /etc/nixos commit -m "Initial Nomarchy System Commit"
    fi
fi

# 6. Success
echo ""
echo "Applying all changes..."
nomarchy-env-update
nomarchy-state-write welcome_done true --type bool

# Remove legacy flag file if it exists
rm -f "$HOME/.config/nomarchy/.first-run-done"

gum style --foreground 82 "Setup complete! Enjoy your Nomarchy experience."
sleep 3