mjdev-desktop/src/main/kotlin/eu/mjdev/desktop/data/Theme.kt

package eu.mjdev.desktop.data

import androidx.compose.runtime.mutableStateOf
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.unit.Dp
import androidx.compose.ui.unit.DpSize
import androidx.compose.ui.unit.dp
import eu.mjdev.desktop.extensions.Compose.SuperDarkGray
import eu.mjdev.desktop.fonts.MaterialIconFont
import eu.mjdev.desktop.fonts.MaterialSymbolsSharp

// todo all components customizable
@Suppress("unused", "MemberVisibilityCanBePrivate")
class Theme(
    backgroundColor: Color,
    backgroundRotationDelay: Long,

    panelLocation: PanelLocation,
    panelDividerWidth: Dp,
    panelContentPadding: Dp,
    panelHideDelay: Long,

    controlCenterLocation: ControlCenterLocation,
    controlPanelHideDelay: Long,
    controlCenterExpandedWidthPercent: Int,
    controlCenterDividerColor: Color = backgroundColor,
    controlCenterDividerWidth: Dp,
    controlCenterIconColor: Color,
    controlCenterIconSize: DpSize,
    controlCenterBackgroundAlpha: Float,

    iconSet: MaterialIconFont,

    appMenuMinWidth: Dp,
    appMenuMinHeight: Dp,
    appMenuOuterPadding: Dp,
) {

    val backgroundColorState = mutableStateOf(backgroundColor)
    val backgroundRotationDelayState = mutableStateOf(backgroundRotationDelay)

    val panelLocationState = mutableStateOf(panelLocation)
    val panelHideDelayState = mutableStateOf(panelHideDelay)
    val panelDividerWidthState = mutableStateOf(panelDividerWidth)
    val panelContentPaddingState = mutableStateOf(panelContentPadding)

    val controlCenterLocationState = mutableStateOf(controlCenterLocation)
    val controlPanelHideDelayState = mutableStateOf(controlPanelHideDelay)
    var controlCenterExpandedWidthState = mutableStateOf(controlCenterExpandedWidthPercent)
    val controlCenterDividerColorState = mutableStateOf(controlCenterDividerColor)
    val controlCenterDividerWidthState = mutableStateOf(controlCenterDividerWidth)
    val controlCenterIconColorState = mutableStateOf(controlCenterIconColor)
    val controlCenterIconSizeState = mutableStateOf(controlCenterIconSize)

    val iconSetState = mutableStateOf(iconSet)

    val appMenuMinWidthState = mutableStateOf(appMenuMinWidth)
    val appMenuMinHeightState = mutableStateOf(appMenuMinHeight)
    val appMenuOuterPaddingState = mutableStateOf(appMenuOuterPadding)

    var backgroundColor
        get() = backgroundColorState.value
        set(value) {
            backgroundColorState.value = value
        }

    val panelLocation get() = panelLocationState.value
    val panelDividerWidth get() = panelDividerWidthState.value
    val panelContentPadding get() = panelContentPaddingState.value
    val panelHideDelay get() = panelHideDelayState.value

    val controlCenterBackgroundAlphaState = mutableStateOf(controlCenterBackgroundAlpha)
    val controlCenterLocation get() = controlCenterLocationState.value
    val controlPanelHideDelay get() = controlPanelHideDelayState.value
    var controlCenterExpandedWidth
        get() = controlCenterExpandedWidthState.value
        set(value) {
            controlCenterExpandedWidthState.value = value
        }
    val controlCenterDividerColor get() = controlCenterDividerColorState.value
    val controlCenterDividerWidth get() = controlCenterDividerWidthState.value
    val controlCenterIconColor get() = controlCenterIconColorState.value
    val controlCenterIconSize get() = controlCenterIconSizeState.value
    val controlCenterBackgroundAlpha get() = controlCenterBackgroundAlphaState.value

    val iconSet get() = iconSetState.value

    val backgroundRotationDelay get() = backgroundRotationDelayState.value

    val appMenuMinWidth get() = appMenuMinWidthState.value
    val appMenuMinHeight get() = appMenuMinHeightState.value
    val appMenuOuterPadding get() = appMenuOuterPaddingState.value

    companion object {
        val themeCache = mutableMapOf<String, Theme>()

        private val DEFAULT = Theme(
            iconSet = MaterialSymbolsSharp,

            backgroundColor = Color.SuperDarkGray,
            backgroundRotationDelay = 60000,

            panelLocation = PanelLocation.Bottom,
            panelDividerWidth = 16.dp,
            panelContentPadding = 4.dp,
            panelHideDelay = 2000L,

            controlCenterLocation = ControlCenterLocation.Right,
            controlPanelHideDelay = 2000L,
            controlCenterExpandedWidthPercent = 25,
            controlCenterDividerColor = Color.SuperDarkGray,
            controlCenterDividerWidth = 4.dp,
            controlCenterIconColor = Color.White,
            controlCenterIconSize = DpSize(32.dp, 32.dp),
            controlCenterBackgroundAlpha = 0.6f,

            appMenuMinWidth = 480.dp,
            appMenuMinHeight = 640.dp,
            appMenuOuterPadding = 2.dp
        )

        // todo load from user settings
        fun load(
            user: User
        ): Theme = themeCache[user.userName] ?: DEFAULT.apply {
            themeCache[user.userName] = this
        }
    }
}