package com.aistudio.bonjuteri.jwlry.ui.screens

import androidx.compose.foundation.background
import androidx.compose.foundation.border
import androidx.compose.foundation.clickable
import androidx.compose.foundation.layout.Arrangement
import androidx.compose.foundation.layout.Box
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.Row
import androidx.compose.foundation.layout.Spacer
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.foundation.layout.fillMaxWidth
import androidx.compose.foundation.layout.height
import androidx.compose.foundation.layout.padding
import androidx.compose.foundation.layout.size
import androidx.compose.foundation.layout.width
import androidx.compose.foundation.rememberScrollState
import androidx.compose.foundation.shape.CircleShape
import androidx.compose.foundation.shape.RoundedCornerShape
import androidx.compose.foundation.verticalScroll
import androidx.compose.material.icons.Icons
import androidx.compose.material.icons.automirrored.filled.ArrowForwardIos
import androidx.compose.material.icons.automirrored.filled.ExitToApp
import androidx.compose.material.icons.filled.AdminPanelSettings
import androidx.compose.material.icons.filled.Info
import androidx.compose.material.icons.filled.LocationOn
import androidx.compose.material.icons.filled.Person
import androidx.compose.material.icons.filled.ShoppingBag
import androidx.compose.material.icons.outlined.Diamond
import androidx.compose.material.icons.outlined.VerifiedUser
import androidx.compose.material3.Card
import androidx.compose.material3.CardDefaults
import androidx.compose.material3.HorizontalDivider
import androidx.compose.material3.Icon
import androidx.compose.material3.MaterialTheme
import androidx.compose.material3.Text
import androidx.compose.runtime.Composable
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.draw.clip
import androidx.compose.ui.graphics.vector.ImageVector
import androidx.compose.ui.platform.testTag
import androidx.compose.ui.text.font.FontWeight
import androidx.compose.ui.unit.dp
import androidx.compose.ui.unit.sp
import com.aistudio.bonjuteri.jwlry.model.UserProfile
import com.aistudio.bonjuteri.jwlry.model.UserRole
import com.aistudio.bonjuteri.jwlry.ui.theme.ErrorRed
import com.aistudio.bonjuteri.jwlry.ui.theme.GoldDark
import com.aistudio.bonjuteri.jwlry.ui.theme.GoldPrimary
import com.aistudio.bonjuteri.jwlry.ui.theme.GoldSubtle
import com.aistudio.bonjuteri.jwlry.ui.theme.LightSurface
import com.aistudio.bonjuteri.jwlry.ui.theme.MutedGrey
import com.aistudio.bonjuteri.jwlry.ui.theme.OffWhite
import com.aistudio.bonjuteri.jwlry.ui.theme.PrimaryBlack
import com.aistudio.bonjuteri.jwlry.ui.theme.PureWhite
import com.aistudio.bonjuteri.jwlry.ui.theme.SurfaceBorder

@Composable
fun ProfileScreen(
    userProfile: UserProfile?,
    orderCount: Int,
    addressCount: Int,
    onOrdersClick: () -> Unit,
    onAddressesClick: () -> Unit,
    onAdminPanelClick: () -> Unit,
    onSignOutClick: () -> Unit,
    modifier: Modifier = Modifier
) {
    val role = userProfile?.userRole ?: UserRole.USER

    Column(
        modifier = modifier
            .fillMaxSize()
            .background(OffWhite)
            .verticalScroll(rememberScrollState())
            .padding(16.dp),
        verticalArrangement = Arrangement.spacedBy(16.dp)
    ) {
        // User Header Card
        Card(
            modifier = Modifier.fillMaxWidth(),
            colors = CardDefaults.cardColors(containerColor = PureWhite),
            shape = RoundedCornerShape(16.dp),
            elevation = CardDefaults.cardElevation(defaultElevation = 2.dp)
        ) {
            Column(
                modifier = Modifier
                    .fillMaxWidth()
                    .padding(20.dp),
                horizontalAlignment = Alignment.CenterHorizontally
            ) {
                Box(
                    modifier = Modifier
                        .size(68.dp)
                        .background(PrimaryBlack, CircleShape),
                    contentAlignment = Alignment.Center
                ) {
                    Icon(
                        imageVector = Icons.Outlined.Diamond,
                        contentDescription = null,
                        tint = GoldPrimary,
                        modifier = Modifier.size(34.dp)
                    )
                }

                Spacer(modifier = Modifier.height(12.dp))

                Text(
                    text = userProfile?.fullName?.ifBlank { "Değerli Müşterimiz" } ?: "Giriş Yapılmadı",
                    style = MaterialTheme.typography.titleLarge.copy(
                        fontWeight = FontWeight.Bold,
                        color = PrimaryBlack,
                        fontSize = 18.sp
                    )
                )

                Text(
                    text = userProfile?.email ?: "",
                    style = MaterialTheme.typography.bodyMedium.copy(
                        color = MutedGrey,
                        fontSize = 13.sp
                    )
                )

                Spacer(modifier = Modifier.height(8.dp))

                // Role Badge
                Box(
                    modifier = Modifier
                        .background(
                            if (role.isPrivileged) GoldPrimary else LightSurface,
                            RoundedCornerShape(20.dp)
                        )
                        .padding(horizontal = 12.dp, vertical = 4.dp)
                ) {
                    Text(
                        text = role.displayName.uppercase(),
                        color = if (role.isPrivileged) PureWhite else PrimaryBlack,
                        fontSize = 11.sp,
                        fontWeight = FontWeight.Bold,
                        letterSpacing = 0.5.sp
                    )
                }
            }
        }

        // Dedicated Admin Panel Card if user is Privileged
        if (role.isPrivileged) {
            Card(
                modifier = Modifier
                    .fillMaxWidth()
                    .clip(RoundedCornerShape(14.dp))
                    .clickable { onAdminPanelClick() }
                    .testTag("admin_panel_entry_card"),
                colors = CardDefaults.cardColors(containerColor = PrimaryBlack),
                elevation = CardDefaults.cardElevation(defaultElevation = 3.dp)
            ) {
                Row(
                    modifier = Modifier
                        .fillMaxWidth()
                        .padding(16.dp),
                    verticalAlignment = Alignment.CenterVertically
                ) {
                    Box(
                        modifier = Modifier
                            .size(44.dp)
                            .background(GoldPrimary, CircleShape),
                        contentAlignment = Alignment.Center
                    ) {
                        Icon(
                            imageVector = Icons.Filled.AdminPanelSettings,
                            contentDescription = "Yönetim Paneli",
                            tint = PureWhite,
                            modifier = Modifier.size(24.dp)
                        )
                    }

                    Spacer(modifier = Modifier.width(14.dp))

                    Column(modifier = Modifier.weight(1f)) {
                        Text(
                            text = "BONJUTERİ Yönetim Paneli",
                            color = PureWhite,
                            fontWeight = FontWeight.Bold,
                            fontSize = 15.sp
                        )
                        Text(
                            text = "Ürünler, Siparişler, Kategoriler & Dashboard",
                            color = GoldSubtle,
                            fontSize = 11.sp
                        )
                    }

                    Icon(
                        imageVector = Icons.AutoMirrored.Filled.ArrowForwardIos,
                        contentDescription = null,
                        tint = GoldPrimary,
                        modifier = Modifier.size(16.dp)
                    )
                }
            }
        }

        // Account Menu Items
        Card(
            modifier = Modifier.fillMaxWidth(),
            colors = CardDefaults.cardColors(containerColor = PureWhite),
            shape = RoundedCornerShape(12.dp)
        ) {
            Column {
                ProfileMenuItem(
                    icon = Icons.Filled.ShoppingBag,
                    title = "Siparişlerim",
                    subtitle = "$orderCount Sipariş",
                    onClick = onOrdersClick,
                    testTag = "menu_orders"
                )
                HorizontalDivider(color = SurfaceBorder)
                ProfileMenuItem(
                    icon = Icons.Filled.LocationOn,
                    title = "Kayıtlı Adreslerim",
                    subtitle = "$addressCount Adres",
                    onClick = onAddressesClick,
                    testTag = "menu_addresses"
                )
                HorizontalDivider(color = SurfaceBorder)
                ProfileMenuItem(
                    icon = Icons.Outlined.VerifiedUser,
                    title = "Güvenlik & Gizlilik",
                    subtitle = "Hesap güvenliği ve sözleşmeler",
                    onClick = { /* Security */ }
                )
                HorizontalDivider(color = SurfaceBorder)
                ProfileMenuItem(
                    icon = Icons.Filled.Info,
                    title = "Hakkımızda & Müşteri Hizmetleri",
                    subtitle = "info@bonjuteri.com",
                    onClick = { /* About */ }
                )
            }
        }

        // Sign Out Card
        Card(
            modifier = Modifier
                .fillMaxWidth()
                .clip(RoundedCornerShape(12.dp))
                .clickable { onSignOutClick() }
                .testTag("sign_out_button"),
            colors = CardDefaults.cardColors(containerColor = PureWhite),
            shape = RoundedCornerShape(12.dp)
        ) {
            Row(
                modifier = Modifier
                    .fillMaxWidth()
                    .padding(16.dp),
                verticalAlignment = Alignment.CenterVertically
            ) {
                Icon(
                    imageVector = Icons.AutoMirrored.Filled.ExitToApp,
                    contentDescription = "Çıkış Yap",
                    tint = ErrorRed,
                    modifier = Modifier.size(22.dp)
                )
                Spacer(modifier = Modifier.width(14.dp))
                Text(
                    text = "Güvenli Çıkış Yap",
                    color = ErrorRed,
                    fontWeight = FontWeight.Bold,
                    fontSize = 14.sp
                )
            }
        }
    }
}

@Composable
private fun ProfileMenuItem(
    icon: ImageVector,
    title: String,
    subtitle: String,
    onClick: () -> Unit,
    testTag: String? = null
) {
    Row(
        modifier = Modifier
            .fillMaxWidth()
            .clickable { onClick() }
            .then(if (testTag != null) Modifier.testTag(testTag) else Modifier)
            .padding(16.dp),
        verticalAlignment = Alignment.CenterVertically
    ) {
        Icon(
            imageVector = icon,
            contentDescription = title,
            tint = PrimaryBlack,
            modifier = Modifier.size(20.dp)
        )
        Spacer(modifier = Modifier.width(14.dp))
        Column(modifier = Modifier.weight(1f)) {
            Text(text = title, fontWeight = FontWeight.SemiBold, fontSize = 14.sp, color = PrimaryBlack)
            Text(text = subtitle, color = MutedGrey, fontSize = 11.sp)
        }
        Icon(
            imageVector = Icons.AutoMirrored.Filled.ArrowForwardIos,
            contentDescription = null,
            tint = MutedGrey,
            modifier = Modifier.size(14.dp)
        )
    }
}