#!/bin/bash

check_network_connectivity() {
  # This function will do a basic check for network availability and return "true" if it is working.
  # USAGE: if [[ $(check_network_connectivity) == "true" ]]; then

  if [[ ! -z $(wget --spider -t 1 $remote_network_target_1 | grep "HTTP response 200") ]]; then
    local network_connected="true"
  elif [[ ! -z $(wget --spider -t 1 $remote_network_target_2 | grep "HTTP response 200") ]]; then
    local network_connected="true"
  elif [[ ! -z $(wget --spider -t 1 $remote_network_target_3 | grep "HTTP response 200") ]]; then
    local network_connected="true"
  else
    local network_connected="false"
  fi

  echo "$network_connected"
}

check_desktop_mode() {
  # This function will do a basic check of if we are running in Steam Deck game mode or not, and return "true" if we are outside of game mode
  # USAGE: if [[ $(check_desktop_mode) == "true" ]]; then

  if [[ ! $XDG_CURRENT_DESKTOP == "gamescope" ]]; then
    echo "true"
  else
    echo "false"
  fi
}

check_is_steam_deck() {
  # This function will check the internal product ID for the Steam Deck codename and return "true" if RetroDECK is running on a real Deck
  # USAGE: if [[ $(check_is_steam_deck) == "true" ]]; then

  if [[ $(cat /sys/devices/virtual/dmi/id/product_name) =~ ^(Jupiter|Galileo)$ ]]; then
    echo "true"
  else
    echo "false"
  fi
}

check_for_version_update() {
  # This function will perform a basic online version check and alert the user if there is a new version available.

  log d "Entering funtcion check_for_version_update"

  wget -q --spider "https://api.github.com/repos/XargonWan/$update_repo/releases/latest"

  if [ $? -eq 0 ]; then
    local online_version=$(curl --silent "https://api.github.com/repos/XargonWan/$update_repo/releases/latest" | grep '"tag_name":' | sed -E 's/.*"([^"]+)".*/\1/')

    if [[ ! "$update_ignore" == "$online_version" ]]; then
      if [[ "$update_repo" == "RetroDECK" ]] && [[ $(sed -e 's/[\.a-z]//g' <<< $version) -le $(sed -e 's/[\.a-z]//g' <<< $online_version) ]]; then
        # choice=$(rd_zenity --icon-name=net.retrodeck.retrodeck --info --no-wrap --ok-label="Yes" --extra-button="No" --extra-button="Ignore this version" \
        #   --window-icon="/app/share/icons/hicolor/scalable/apps/net.retrodeck.retrodeck.svg" \
        #   --title "RetroDECK Update Available" \
        #   --text="There is a new version of RetroDECK on the stable release channel $online_version. Would you like to update to it?\n\n(depending on your internet speed this could takes several minutes).")
        # rc=$? # Capture return code, as "Yes" button has no text value
        # if [[ $rc == "1" ]]; then # If any button other than "Yes" was clicked
        #   if [[ $choice == "Ignore this version" ]]; then
        #     set_setting_value $rd_conf "update_ignore" "$online_version" retrodeck "options" # Store version to ignore for future checks
        #   fi
        # else # User clicked "Yes"
        #   configurator_generic_dialog "RetroDECK Online Update" "The update process may take several minutes.\n\nAfter the update is complete, RetroDECK will close. When you run it again you will be using the latest version."
        #   (
        #   flatpak-spawn --host flatpak update --noninteractive -y net.retrodeck.retrodeck
        #   ) |
        #   rd_zenity --icon-name=net.retrodeck.retrodeck --progress --no-cancel --pulsate --auto-close \
        #   --window-icon="/app/share/icons/hicolor/scalable/apps/net.retrodeck.retrodeck.svg" \
        #   --title "RetroDECK Updater" \
        #   --text="Upgrade in process please wait (this could takes several minutes)."
        #   configurator_generic_dialog "RetroDECK Online Update" "The update process is now complete!\n\nPlease restart RetroDECK to keep the fun going."
        #   exit 1
        # fi
        # TODO: add the logic to check and update the branch from the configuration file
        log i "Showing new version found dialog"
        choice=$(rd_zenity --icon-name=net.retrodeck.retrodeck --info --no-wrap --ok-label="OK" --extra-button="Ignore this version" \
        --window-icon="/app/share/icons/hicolor/scalable/apps/net.retrodeck.retrodeck.svg" \
        --title "RetroDECK - New Update Available" \
        --text="There is a new version of RetroDECK available: <span foreground='$blue'><b>$online_version</b></span>.\nYou can easily update from the app store you have installed, examples: KDE Discover or Gnome Software.\n\nIf you would like to ignore this notification, click the \"Ignore this version\" button.")
        rc=$? # Capture return code, as "OK" button has no text value
        if [[ $rc == "1" ]]; then # If any button other than "OK" was clicked
          log i "Selected: \"OK\""
          set_setting_value $rd_conf "update_ignore" "$online_version" retrodeck "options" # Store version to ignore for future checks
        fi
      elif [[ "$update_repo" == "RetroDECK-cooker" ]] && [[ ! $version == $online_version ]]; then
        log i "Showing update request dialog as \"$online_version\" was found and is greater then \"$version\""
        choice=$(rd_zenity --icon-name=net.retrodeck.retrodeck --info --no-wrap --ok-label="Yes" --extra-button="No" --extra-button="Ignore this version" \
          --window-icon="/app/share/icons/hicolor/scalable/apps/net.retrodeck.retrodeck.svg" \
          --title "RetroDECK - New Cooker Version Available" \
          --text="There is a more recent version of RetroDECK cooker.\nYou are running version <span foreground='$blue'><b>$hard_version</b></span>. The latest is <span foreground='$blue'><b>$online_version</b></span>.\n\nWould you like to update?\nIf you would like to ignore this notification, click the \"Ignore this version\" button.\n\nIf you would like to disable these notifications entirely: disable Online Update Checks in the Configurator.")
        rc=$? # Capture return code, as "Yes" button has no text value
        if [[ $rc == "1" ]]; then # If any button other than "Yes" was clicked
          if [[ $choice == "Ignore this version" ]]; then
            log i "\"Ignore this version\" selected, updating \"$rd_conf\""
            set_setting_value $rd_conf "update_ignore" "$online_version" retrodeck "options" # Store version to ignore for future checks.
          fi
        else # User clicked "Yes"
          log i "Selected: \"Yes\""
          configurator_generic_dialog "RetroDECK Online Update" "The update process may take several minutes.\n\nAfter the update is complete, RetroDECK will close. When you run it again you will be using the latest version."
          (
          local latest_cooker_download=$(curl --silent https://api.github.com/repos/XargonWan/RetroDECK-cooker/releases/latest | grep '"browser_download_url":.*flatpak' | grep -v '\.sha' | sed -E 's/.*"([^"]+)".*/\1/')
          local temp_folder="$rdhome/RetroDECK_Updates"
          create_dir $temp_folder
          log i "Downloading version \"$online_version\" in \"$temp_folder/RetroDECK-cooker.flatpak\" from url: \"$latest_cooker_download\""
          # Downloading the flatpak file
          wget -P "$temp_folder" "$latest_cooker_download"
          # And its sha
          wget -P "$temp_folder" "$latest_cooker_download.sha"

          # Get the expected SHA checksum from the SHA file
          local expected_sha=$(cat "$temp_folder/$(basename "$latest_cooker_download").sha" | awk '{print $1}')

          # Check if the file exists
          if [ -f "$temp_folder/RetroDECK-cooker.flatpak" ]; then
              # Calculate the actual SHA checksum of the file
              actual_sha=$(sha256sum "$temp_folder/RetroDECK-cooker.flatpak" | awk '{print $1}')
              
              # Log the found and expected SHA checksums
              log d "Found SHA: $actual_sha"
              log d "Expected SHA: $expected_sha"
              
              # Check if the SHA checksum matches
              if [ "$actual_sha" = "$expected_sha" ]; then
                  log d "Flatpak file \"$temp_folder/RetroDECK-cooker.flatpak\" found and SHA checksum matches, proceeding."
                  log d "Uninstalling old RetroDECK flatpak"
                  # Remove current version before installing new one, to avoid duplicates
                  flatpak-spawn --host flatpak remove --noninteractive -y net.retrodeck.retrodeck && log d "Uninstallation successful"
                  log d "Installing new flatpak file from: \"$temp_folder/RetroDECK-cooker.flatpak\""
                  flatpak-spawn --host flatpak install --user --bundle --noninteractive -y "$temp_folder/RetroDECK-cooker.flatpak" && log d "Installation successful"
              else
                  log e "Flatpak file \"$temp_folder/RetroDECK-cooker.flatpak\" found but SHA checksum does not match. Quitting."
                  configurator_generic_dialog "RetroDECK Online Update" "There was an error during the update: flatpak file found but SHA checksum does not match. Please check the log file."
                  exit 1
              fi
          else
              log e "Flatpak file \"$temp_folder/RetroDECK-cooker.flatpak\" NOT FOUND. Quitting."
              configurator_generic_dialog "RetroDECK Online Update" "There was an error during the update: flatpak file not found. Please check the log file."
              exit 1
          fi

          rm -rf "$temp_folder" # Cleanup old bundles to save space
          ) |
          rd_zenity --icon-name=net.retrodeck.retrodeck --progress --no-cancel --pulsate --auto-close \
          --window-icon="/app/share/icons/hicolor/scalable/apps/net.retrodeck.retrodeck.svg" \
          --title "RetroDECK Updater" \
          --text="RetroDECK is updating to the latest version, please wait."
          configurator_generic_dialog "RetroDECK Online Update" "The update process is now complete!\n\nPlease restart RetroDECK to keep the fun going."
          exit 1
        fi
      fi
    fi
  else # Unable to reach the GitHub API for some reason
    configurator_generic_dialog "RetroDECK Online Update" "RetroDECK is unable to reach the GitHub API to perform a version check.\nIt's possible that location is being blocked by your network or ISP.\n\nIf the problem continues, you will need to disable internal checks through the Configurator\nand perform updates manually through the Discover store."
  fi
}

validate_input() {
  while IFS="^" read -r input action || [[ -n "$input" ]];
  do
    if [[ ! $input == "#"* ]] && [[ ! -z "$input" ]]; then
      if [[ "$input" == "$1" ]]; then
        eval "$action"
        input_validated="true"
      fi
    fi
  done < $input_validation
}

check_version_is_older_than() {
# This function will determine if a given version number is newer than the one currently read from retrodeck.cfg (which will be the previous running version at update time) and will return "true" if it is
# The given version to check should be in normal RetroDECK version notation of N.N.Nb (eg. 0.8.0b)
# USAGE: check_version_is_older_than "version"

local current_version="$version"
local new_version="$1"
local is_newer_version="false"

current_version_major_rev=$(sed 's/^\([0-9]*\)\..*/\1/' <<< "$current_version")
new_version_major_rev=$(sed 's/^\([0-9]*\)\..*/\1/' <<< "$new_version")

current_version_minor_rev=$(sed 's/^[0-9]*\.\([0-9]*\)\..*/\1/' <<< "$current_version")
new_version_minor_rev=$(sed 's/^[0-9]*\.\([0-9]*\)\..*/\1/' <<< "$new_version")

current_version_point_rev=$(sed 's/^[0-9]*\.[0-9]*\.\([0-9]*\).*/\1/' <<< "$current_version")
new_version_point_rev=$(sed 's/^[0-9]*\.[0-9]*\.\([0-9]*\).*/\1/' <<< "$new_version")

if [[ "$new_version_major_rev" -gt "$current_version_major_rev" ]]; then
  is_newer_version="true"
elif [[ "$new_version_major_rev" -eq "$current_version_major_rev" ]]; then
  if [[ "$new_version_minor_rev" -gt "$current_version_minor_rev" ]]; then
    is_newer_version="true"
  elif [[ "$new_version_minor_rev" -eq "$current_version_minor_rev" ]]; then
    if [[ "$new_version_point_rev" -gt "$current_version_point_rev" ]]; then
      is_newer_version="true"
    fi
  fi
fi

# Perform post_update commands for current version if it is a cooker
if grep -qF "cooker" <<< $hard_version; then # If newly-installed version is a "cooker" build, always perform post_update commands for current version
  if [[ "$(echo $hard_version | cut -d'-' -f2)" == "$new_version" ]]; then
    is_newer_version="true"
  fi
fi

echo "$is_newer_version"
}