pragma Singleton

import QtQuick
import Quickshell
import Quickshell.Io
import qs.Commons
import qs.Services


/*
  Noctalia is not strictly a Material Design project, it supports both some predefined
  color schemes and dynamic color generation from the wallpaper (using Matugen).

  We ultimately decided to use a restricted set of colors that follows the
  Material Design 3 naming convention.

  NOTE: All color names are prefixed with 'm' (e.g., mPrimary) to prevent QML from
  misinterpreting them as signals (e.g., the 'onPrimary' property name).
*/
Singleton {
  id: root

  // --- Key Colors: These are the main accent colors that define your app's style
  property color mPrimary: customColors.mPrimary
  property color mOnPrimary: customColors.mOnPrimary
  property color mSecondary: customColors.mSecondary
  property color mOnSecondary: customColors.mOnSecondary
  property color mTertiary: customColors.mTertiary
  property color mOnTertiary: customColors.mOnTertiary

  // --- Utility Colors: These colors serve specific, universal purposes like indicating errors
  property color mError: customColors.mError
  property color mOnError: customColors.mOnError

  // --- Surface and Variant Colors: These provide additional options for surfaces and their contents, creating visual hierarchy
  property color mSurface: customColors.mSurface
  property color mOnSurface: customColors.mOnSurface

  property color mSurfaceVariant: customColors.mSurfaceVariant
  property color mOnSurfaceVariant: customColors.mOnSurfaceVariant

  property color mOutline: customColors.mOutline
  property color mShadow: customColors.mShadow

  property color transparent: "transparent"

  // --------------------------------
  // Default colors: RosePine
  QtObject {
    id: defaultColors

    property color mPrimary: "#c7a1d8"
    property color mOnPrimary: "#1a151f"

    property color mSecondary: "#a984c4"
    property color mOnSecondary: "#f3edf7"

    property color mTertiary: "#e0b7c9"
    property color mOnTertiary: "#20161f"

    property color mError: "#e9899d"
    property color mOnError: "#1e1418"

    property color mSurface: "#1c1822"
    property color mOnSurface: "#e9e4f0"

    property color mSurfaceVariant: "#262130"
    property color mOnSurfaceVariant: "#a79ab0"

    property color mOutline: "#342c42"
    property color mShadow: "#120f18"
  }

  // ----------------------------------------------------------------
  // Custom colors loaded from colors.json
  // These can be generated by matugen or simply come from a well know color scheme (Dracula, Gruvbox, Nord, ...)
  QtObject {
    id: customColors

    property color mPrimary: customColorsData.mPrimary
    property color mOnPrimary: customColorsData.mOnPrimary

    property color mSecondary: customColorsData.mSecondary
    property color mOnSecondary: customColorsData.mOnSecondary

    property color mTertiary: customColorsData.mTertiary
    property color mOnTertiary: customColorsData.mOnTertiary

    property color mError: customColorsData.mError
    property color mOnError: customColorsData.mOnError

    property color mSurface: customColorsData.mSurface
    property color mOnSurface: customColorsData.mOnSurface

    property color mSurfaceVariant: customColorsData.mSurfaceVariant
    property color mOnSurfaceVariant: customColorsData.mOnSurfaceVariant

    property color mOutline: customColorsData.mOutline
    property color mShadow: customColorsData.mShadow
  }

  // FileView to load custom colors data from colors.json
  FileView {
    id: customColorsFile
    path: Settings.directoriesCreated ? (Settings.configDir + "colors.json") : undefined
    printErrors: false
    watchChanges: true
    onFileChanged: {
      Logger.log("Color", "Reloading colors from disk")
      reload()
    }
    onAdapterUpdated: {
      Logger.log("Color", "Writing colors to disk")
      writeAdapter()
    }

    // Trigger initial load when path changes from empty to actual path
    onPathChanged: {
      if (path !== undefined) {
        reload()
      }
    }
    onLoadFailed: function (error) {
      if (error.toString().includes("No such file") || error === 2) {
        // File doesn't exist, create it with default values
        writeAdapter()
      }
    }
    JsonAdapter {
      id: customColorsData

      property color mPrimary: defaultColors.mPrimary
      property color mOnPrimary: defaultColors.mOnPrimary

      property color mSecondary: defaultColors.mSecondary
      property color mOnSecondary: defaultColors.mOnSecondary

      property color mTertiary: defaultColors.mTertiary
      property color mOnTertiary: defaultColors.mOnTertiary

      property color mError: defaultColors.mError
      property color mOnError: defaultColors.mOnError

      property color mSurface: defaultColors.mSurface
      property color mOnSurface: defaultColors.mOnSurface

      property color mSurfaceVariant: defaultColors.mSurfaceVariant
      property color mOnSurfaceVariant: defaultColors.mOnSurfaceVariant

      property color mOutline: defaultColors.mOutline
      property color mShadow: defaultColors.mShadow
    }
  }
}