package com.craigvg.lichun_android.utils

import androidx.compose.animation.AnimatedVisibility
import androidx.compose.animation.fadeIn
import androidx.compose.animation.fadeOut
import androidx.compose.foundation.background
import androidx.compose.foundation.clickable
import androidx.compose.foundation.interaction.MutableInteractionSource
import androidx.compose.foundation.layout.Box
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.runtime.Composable
import androidx.compose.runtime.remember
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.graphics.Color
import com.craigvg.lichun_android.ui.components.indicators.LoadingView

/**
 * Composable wrappers for loading and error overlay states
 * Ported from iOS View+LoadingError.swift
 */

/**
 * Wraps content with a loading overlay when [isLoading] is true.
 */
@Composable
fun LoadingOverlay(
    isLoading: Boolean,
    message: String = "Loading...",
    content: @Composable () -> Unit
) {
    Box(modifier = Modifier.fillMaxSize()) {
        content()

        AnimatedVisibility(
            visible = isLoading,
            enter = fadeIn(),
            exit = fadeOut()
        ) {
            Box(
                modifier = Modifier
                    .fillMaxSize()
                    .background(Color.Black.copy(alpha = 0.3f))
                    .clickable(
                        interactionSource = remember { MutableInteractionSource() },
                        indication = null,
                        onClick = {} // Block touches
                    ),
                contentAlignment = Alignment.Center
            ) {
                LoadingView(message = message)
            }
        }
    }
}

/**
 * Wraps content with an error overlay when [error] is not null.
 */
@Composable
fun ErrorOverlay(
    error: String?,
    onDismiss: () -> Unit = {},
    onRetry: (() -> Unit)? = null,
    content: @Composable () -> Unit
) {
    Box(modifier = Modifier.fillMaxSize()) {
        content()

        AnimatedVisibility(
            visible = error != null,
            enter = fadeIn(),
            exit = fadeOut()
        ) {
            Box(
                modifier = Modifier
                    .fillMaxSize()
                    .background(Color.Black.copy(alpha = 0.5f))
                    .clickable(
                        interactionSource = remember { MutableInteractionSource() },
                        indication = null,
                        onClick = onDismiss
                    ),
                contentAlignment = Alignment.Center
            ) {
                error?.let {
                    com.craigvg.lichun_android.ui.components.overlays.ErrorRecoveryView(
                        message = it,
                        onRetry = onRetry ?: onDismiss
                    )
                }
            }
        }
    }
}