package com.craigvg.lichun_android.ui.screens.home.components

import androidx.compose.animation.Crossfade
import androidx.compose.foundation.background
import androidx.compose.foundation.layout.*
import androidx.compose.foundation.shape.RoundedCornerShape
import androidx.compose.material.icons.Icons
import androidx.compose.material.icons.filled.RestartAlt
import androidx.compose.material3.*
import androidx.compose.runtime.Composable
import androidx.compose.runtime.getValue
import androidx.compose.runtime.mutableStateOf
import androidx.compose.runtime.remember
import androidx.compose.runtime.setValue
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.draw.clip
import androidx.compose.ui.platform.LocalView
import androidx.compose.ui.unit.dp
import com.craigvg.lichun_android.domain.models.GameSpeedScale
import com.craigvg.lichun_android.ui.components.dialogs.ConfirmationDialog
import com.craigvg.lichun_android.ui.theme.AppColors
import com.craigvg.lichun_android.ui.theme.AppSpacing
import com.craigvg.lichun_android.ui.theme.AppTypography
import com.craigvg.lichun_android.utils.HapticFeedback

/**
 * Game controls card (Tier 3 polish):
 *  - PRIMARY: time speed, with a single named vocabulary (Slow / Normal / Fast /
 *    Instant) shared by the label and the pip meter. The game auto-starts, so
 *    there is no redundant Start control.
 *  - DEMOTED + GUARDED: "Start a New Life" sits below a divider and asks for
 *    confirmation ("ends your current life") before restarting.
 *
 * Android parity with iOS GameControlsCard.swift (T014).
 */
@Composable
fun GameControlsCard(
    gameSpeed: Int,
    onSpeedChange: (Int) -> Unit,
    onRestart: () -> Unit = {}
) {
    var showRestartConfirm by remember { mutableStateOf(false) }
    val view = LocalView.current
    val speedName = GameSpeedScale.label(gameSpeed)

    Card(
        modifier = Modifier.fillMaxWidth(),
        shape = RoundedCornerShape(AppSpacing.cornerRadius),
        colors = CardDefaults.cardColors(containerColor = AppColors.surfaceElevated)
    ) {
        Column(
            modifier = Modifier
                .fillMaxWidth()
                .padding(AppSpacing.md)
        ) {
            Row(
                modifier = Modifier.fillMaxWidth(),
                verticalAlignment = Alignment.CenterVertically
            ) {
                Text(
                    text = "Speed of Time",
                    style = AppTypography.bodyBold,
                    color = AppColors.primaryText,
                    modifier = Modifier.weight(1f)
                )
                Crossfade(targetState = speedName, label = "speedName") { name ->
                    Text(
                        text = name,
                        style = AppTypography.captionBold,
                        color = AppColors.primary,
                        modifier = Modifier
                            .clip(RoundedCornerShape(AppSpacing.smallCornerRadius))
                            .background(AppColors.primary.copy(alpha = 0.12f))
                            .padding(horizontal = AppSpacing.sm, vertical = AppSpacing.xxs)
                    )
                }
            }

            Spacer(modifier = Modifier.height(AppSpacing.sm))

            SpeedButtonsView(
                gameSpeed = gameSpeed,
                onSpeedChange = onSpeedChange
            )

            Spacer(modifier = Modifier.height(AppSpacing.md))
            HorizontalDivider(color = AppColors.disabledText.copy(alpha = 0.3f))
            Spacer(modifier = Modifier.height(AppSpacing.md))

            // Demoted, guarded life action.
            OutlinedButton(
                onClick = { showRestartConfirm = true },
                modifier = Modifier
                    .fillMaxWidth()
                    .height(AppSpacing.buttonHeight),
                shape = RoundedCornerShape(AppSpacing.cornerRadius),
                colors = ButtonDefaults.outlinedButtonColors(contentColor = AppColors.warning)
            ) {
                Icon(Icons.Default.RestartAlt, null, modifier = Modifier.size(18.dp))
                Spacer(modifier = Modifier.width(AppSpacing.xs))
                Text("Start a New Life", style = AppTypography.bodyBold)
            }
        }
    }

    if (showRestartConfirm) {
        ConfirmationDialog(
            title = "Start a new life?",
            message = "This ends your current life and starts over from birth. Your current character's progress will be lost.",
            confirmTitle = "Start New Life",
            cancelTitle = "Keep Playing",
            isDestructive = true,
            onConfirm = {
                HapticFeedback.warning(view.context)
                showRestartConfirm = false
                onRestart()
            },
            onCancel = { showRestartConfirm = false }
        )
    }
}