package com.aistudio.bonjuteri.jwlry.ui.components

import androidx.compose.foundation.Image
import androidx.compose.foundation.background
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.fillMaxWidth
import androidx.compose.foundation.layout.height
import androidx.compose.foundation.layout.padding
import androidx.compose.foundation.layout.size
import androidx.compose.foundation.layout.statusBarsPadding
import androidx.compose.foundation.layout.width
import androidx.compose.foundation.shape.CircleShape
import androidx.compose.foundation.shape.RoundedCornerShape
import androidx.compose.foundation.text.KeyboardActions
import androidx.compose.foundation.text.KeyboardOptions
import androidx.compose.material.icons.Icons
import androidx.compose.material.icons.filled.Close
import androidx.compose.material.icons.filled.Search
import androidx.compose.material.icons.filled.ShoppingCart
import androidx.compose.material.icons.outlined.Diamond
import androidx.compose.material3.BadgedBox
import androidx.compose.material3.ExperimentalMaterial3Api
import androidx.compose.material3.Icon
import androidx.compose.ui.draw.clip
import androidx.compose.ui.res.painterResource
import com.aistudio.bonjuteri.jwlry.R
import androidx.compose.material3.IconButton
import androidx.compose.material3.MaterialTheme
import androidx.compose.material3.OutlinedTextField
import androidx.compose.material3.Text
import androidx.compose.material3.TextFieldDefaults
import androidx.compose.runtime.Composable
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.platform.testTag
import androidx.compose.ui.text.font.FontWeight
import androidx.compose.ui.text.input.ImeAction
import androidx.compose.ui.unit.dp
import androidx.compose.ui.unit.sp
import com.aistudio.bonjuteri.jwlry.ui.theme.GoldDark
import com.aistudio.bonjuteri.jwlry.ui.theme.GoldPrimary
import com.aistudio.bonjuteri.jwlry.ui.theme.LightSurface
import com.aistudio.bonjuteri.jwlry.ui.theme.MutedGrey
import com.aistudio.bonjuteri.jwlry.ui.theme.PrimaryBlack
import com.aistudio.bonjuteri.jwlry.ui.theme.PureWhite
import com.aistudio.bonjuteri.jwlry.ui.theme.SurfaceBorder

@OptIn(ExperimentalMaterial3Api::class)
@Composable
fun BonjuteriTopBar(
    searchQuery: String,
    onSearchQueryChange: (String) -> Unit,
    cartItemCount: Int,
    onCartClicked: () -> Unit,
    modifier: Modifier = Modifier,
    showSearch: Boolean = true
) {
    Column(
        modifier = modifier
            .fillMaxWidth()
            .background(PureWhite)
            .statusBarsPadding()
            .padding(horizontal = 16.dp, vertical = 8.dp)
    ) {
        Row(
            modifier = Modifier.fillMaxWidth(),
            verticalAlignment = Alignment.CenterVertically
        ) {
            // Brand Logo & Name
            Row(
                verticalAlignment = Alignment.CenterVertically,
                modifier = Modifier.weight(1f)
            ) {
                Image(
                    painter = painterResource(id = R.drawable.img_app_icon_3d),
                    contentDescription = "BONJUTERİ Logo",
                    modifier = Modifier
                        .size(38.dp)
                        .clip(CircleShape)
                )
                Spacer(modifier = Modifier.width(10.dp))
                Column {
                    Text(
                        text = "BONJUTERİ",
                        style = MaterialTheme.typography.titleLarge.copy(
                            fontWeight = FontWeight.Black,
                            letterSpacing = 1.8.sp,
                            color = PrimaryBlack
                        )
                    )
                    Text(
                        text = "ÖZEL TASARIM & MÜCEVHER",
                        style = MaterialTheme.typography.labelSmall.copy(
                            fontSize = 8.sp,
                            fontWeight = FontWeight.Bold,
                            letterSpacing = 1.2.sp,
                            color = GoldDark
                        )
                    )
                }
            }

            // Cart Icon with Badge
            IconButton(
                onClick = onCartClicked,
                modifier = Modifier.testTag("topbar_cart_button")
            ) {
                BadgedBox(
                    badge = {
                        if (cartItemCount > 0) {
                            Box(
                                modifier = Modifier
                                    .background(GoldPrimary, CircleShape)
                                    .padding(horizontal = 5.dp, vertical = 2.dp)
                            ) {
                                Text(
                                    text = if (cartItemCount > 99) "99+" else cartItemCount.toString(),
                                    color = PureWhite,
                                    fontSize = 10.sp,
                                    fontWeight = FontWeight.Bold
                                )
                            }
                        }
                    }
                ) {
                    Icon(
                        imageVector = Icons.Filled.ShoppingCart,
                        contentDescription = "Sepetim",
                        tint = PrimaryBlack
                    )
                }
            }
        }

        if (showSearch) {
            Spacer(modifier = Modifier.height(8.dp))
            OutlinedTextField(
                value = searchQuery,
                onValueChange = onSearchQueryChange,
                modifier = Modifier
                    .fillMaxWidth()
                    .testTag("topbar_search_input"),
                placeholder = {
                    Text(
                        text = "Ürün, kategori veya taş ara...",
                        style = MaterialTheme.typography.bodyMedium,
                        color = MutedGrey
                    )
                },
                leadingIcon = {
                    Icon(
                        imageVector = Icons.Filled.Search,
                        contentDescription = "Ara",
                        tint = MutedGrey,
                        modifier = Modifier.size(20.dp)
                    )
                },
                trailingIcon = {
                    if (searchQuery.isNotBlank()) {
                        IconButton(onClick = { onSearchQueryChange("") }) {
                            Icon(
                                imageVector = Icons.Filled.Close,
                                contentDescription = "Temizle",
                                tint = MutedGrey,
                                modifier = Modifier.size(18.dp)
                            )
                        }
                    }
                },
                singleLine = true,
                shape = RoundedCornerShape(12.dp),
                colors = TextFieldDefaults.colors(
                    focusedContainerColor = LightSurface,
                    unfocusedContainerColor = LightSurface,
                    focusedIndicatorColor = GoldPrimary,
                    unfocusedIndicatorColor = SurfaceBorder,
                    cursorColor = GoldPrimary
                ),
                keyboardOptions = KeyboardOptions(imeAction = ImeAction.Search)
            )
        }
    }
}