package com.simats.risenow.ui.screens

import androidx.compose.foundation.*
import androidx.compose.foundation.layout.*
import androidx.compose.material.icons.Icons
import androidx.compose.material.icons.automirrored.filled.ArrowBack
import androidx.compose.material3.*
import androidx.compose.runtime.Composable
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.unit.dp
import com.simats.risenow.ui.components.AppBackground
import com.simats.risenow.ui.theme.TextPrimary
import com.simats.risenow.ui.theme.TextSecondary
import com.simats.risenow.ui.components.GlassCard

@Composable
fun PrivacyPolicyScreen(onBack: () -> Unit) {
    val scrollState = rememberScrollState()

    AppBackground {
        Column(
            modifier = Modifier
                .fillMaxSize()
                .verticalScroll(scrollState)
                .padding(horizontal = 24.dp)
        ) {
            Spacer(modifier = Modifier.height(60.dp))

            // Header
            Row(
                modifier = Modifier.fillMaxWidth(),
                verticalAlignment = Alignment.CenterVertically
            ) {
                IconButton(onClick = onBack) {
                    Icon(
                        Icons.AutoMirrored.Filled.ArrowBack,
                        contentDescription = "Back",
                        tint = TextPrimary
                    )
                }
                Spacer(modifier = Modifier.width(16.dp))
                Text(
                    text = "Privacy Policy",
                    style = MaterialTheme.typography.headlineSmall,
                    color = TextPrimary
                )
            }

            Spacer(modifier = Modifier.height(32.dp))

            GlassCard(modifier = Modifier.fillMaxWidth()) {
                Column(modifier = Modifier.padding(20.dp)) {
                    
                    // Introduction
                    Text(
                        text = "Introduction",
                        style = MaterialTheme.typography.titleMedium,
                        color = TextPrimary
                    )
                    Spacer(modifier = Modifier.height(8.dp))
                    Text(
                        text = "Your privacy is immensely important to us at RiseNow. This policy outlines how your information is collected, used, and protected.",
                        style = MaterialTheme.typography.bodyMedium,
                        color = TextSecondary
                    )
                    
                    Spacer(modifier = Modifier.height(24.dp))
                    
                    // Information We Collect
                    Text(
                        text = "Information We Collect",
                        style = MaterialTheme.typography.titleMedium,
                        color = TextPrimary
                    )
                    Spacer(modifier = Modifier.height(8.dp))
                    Text(
                        text = "• Account Information: Your username, email address, and basic identity statement.\n• Alarm Settings: Time preferences, intents, and tracking data regarding sleep suggestions.\n• App Usage: Information like login periods, device information, and wake consistency rates.",
                        style = MaterialTheme.typography.bodyMedium,
                        color = TextSecondary
                    )
                    
                    Spacer(modifier = Modifier.height(24.dp))

                    // How We Use the Information
                    Text(
                        text = "How We Use the Information",
                        style = MaterialTheme.typography.titleMedium,
                        color = TextPrimary
                    )
                    Spacer(modifier = Modifier.height(8.dp))
                    Text(
                        text = "We use the collected information to power your alarms, generate analytical statistics like streak counts, verify account integrity, and improve future app features across all platforms.",
                        style = MaterialTheme.typography.bodyMedium,
                        color = TextSecondary
                    )
                    
                    Spacer(modifier = Modifier.height(24.dp))

                    // Data Storage and Security
                    Text(
                        text = "Data Storage and Security",
                        style = MaterialTheme.typography.titleMedium,
                        color = TextPrimary
                    )
                    Spacer(modifier = Modifier.height(8.dp))
                    Text(
                        text = "We implement strong security measures to protect your personal information against unauthorized access under standard protocols. Important metrics are locally cached on your device while backups sync periodically to secure backend servers.",
                        style = MaterialTheme.typography.bodyMedium,
                        color = TextSecondary
                    )

                    Spacer(modifier = Modifier.height(24.dp))

                    // User Privacy Protection
                    Text(
                        text = "User Privacy Protection",
                        style = MaterialTheme.typography.titleMedium,
                        color = TextPrimary
                    )
                    Spacer(modifier = Modifier.height(8.dp))
                    Text(
                        text = "We respect your trust. We do not sell, rent, or trade your personally identifiable information to outside parties.",
                        style = MaterialTheme.typography.bodyMedium,
                        color = TextSecondary
                    )

                    Spacer(modifier = Modifier.height(24.dp))

                    // Third-Party Services
                    Text(
                        text = "Third-Party Services",
                        style = MaterialTheme.typography.titleMedium,
                        color = TextPrimary
                    )
                    Spacer(modifier = Modifier.height(8.dp))
                    Text(
                        text = "RiseNow might occasionally link to external tracking APIs solely for analytics improvements. Any third-party service provider utilized complies strictly with general data protection guidelines.",
                        style = MaterialTheme.typography.bodyMedium,
                        color = TextSecondary
                    )

                    Spacer(modifier = Modifier.height(24.dp))

                    // Contact Information
                    Text(
                        text = "Contact Information",
                        style = MaterialTheme.typography.titleMedium,
                        color = TextPrimary
                    )
                    Spacer(modifier = Modifier.height(8.dp))
                    Text(
                        text = "If you have any questions or concerns regarding our privacy policy, please contact us at:\ncharandevalapalli@gmail.com",
                        style = MaterialTheme.typography.bodyMedium,
                        color = TextSecondary
                    )
                }
            }

            Spacer(modifier = Modifier.height(40.dp))
        }
    }
}