#!/bin/bash

set -e

ICON_DIR="$HOME/.local/share/applications/icons"

if (( $# < 3 )); then
  echo -e "\e[32mLet's create a new web app you can start with the app launcher.\n\e[0m"
  APP_NAME=$(gum input --prompt "Name> " --placeholder "My favorite web app")
  APP_URL=$(gum input --prompt "URL> " --placeholder "https://example.com")
  if [[ ! $APP_URL =~ ^[a-zA-Z][a-zA-Z0-9+.-]*: ]]; then
    APP_URL="https://$APP_URL"
  fi

  # Try to fetch favicon automatically first.
  FAVICON_URL="https://www.google.com/s2/favicons?domain=${APP_URL}&sz=128"
  mkdir -p "$ICON_DIR"
  if curl -fsSL -o "$ICON_DIR/$APP_NAME.png" "$FAVICON_URL" && [[ -s $ICON_DIR/$APP_NAME.png ]]; then
    ICON_REF="$APP_NAME.png"
  else
    ICON_REF=$(gum input --prompt "Icon URL> " --placeholder "Could not fetch favicon automatically. Enter PNG icon URL (see https://dashboardicons.com)")
  fi

  CUSTOM_EXEC=""
  MIME_TYPES=""
  INTERACTIVE_MODE=true
else
  APP_NAME="$1"
  APP_URL="$2"
  if [[ ! $APP_URL =~ ^[a-zA-Z][a-zA-Z0-9+.-]*: ]]; then
    APP_URL="https://$APP_URL"
  fi
  ICON_REF="$3"
  CUSTOM_EXEC="$4" # Optional custom exec command
  MIME_TYPES="$5"  # Optional mime types
  INTERACTIVE_MODE=false
fi

# Ensure valid execution
if [[ -z $APP_NAME || -z $APP_URL ]]; then
  echo "You must set app name and app URL!"
  exit 1
fi

# Resolve icon from URL or from a local icon name.
mkdir -p "$ICON_DIR"

if [[ -z $ICON_REF ]]; then
  ICON_REF="https://www.google.com/s2/favicons?domain=${APP_URL}&sz=128"
fi

if [[ $ICON_REF =~ ^https?:// ]]; then
  ICON_PATH="$ICON_DIR/$APP_NAME.png"
  if ! curl -fsSL -o "$ICON_PATH" "$ICON_REF" || [[ ! -s $ICON_PATH ]]; then
    echo "Error: Failed to download icon."
    exit 1
  fi
else
  ICON_PATH="$ICON_DIR/$ICON_REF"
fi

# Use custom exec if provided, otherwise default behavior
EXEC_COMMAND="${CUSTOM_EXEC:-nomarchy-launch-webapp $APP_URL}"

# Create application .desktop file
DESKTOP_FILE="$HOME/.local/share/applications/$APP_NAME.desktop"

cat >"$DESKTOP_FILE" <<EOF
[Desktop Entry]
Version=1.0
Name=$APP_NAME
Comment=$APP_NAME
Exec=$EXEC_COMMAND
Terminal=false
Type=Application
Icon=$ICON_PATH
StartupNotify=true
EOF

# Add mime types if provided
if [[ -n $MIME_TYPES ]]; then
  echo "MimeType=$MIME_TYPES" >>"$DESKTOP_FILE"
fi

chmod +x "$DESKTOP_FILE"

if [[ $INTERACTIVE_MODE == "true" ]]; then
  echo -e "You can now find $APP_NAME using the app launcher (SUPER + SPACE)\n"
fi