package com.example.scanwich

import android.content.Intent
import android.content.SharedPreferences
import android.net.Uri
import android.widget.Toast
import androidx.compose.foundation.layout.*
import androidx.compose.foundation.rememberScrollState
import androidx.compose.foundation.verticalScroll
import androidx.compose.material.icons.Icons
import androidx.compose.material.icons.filled.Edit
import androidx.compose.material3.*
import androidx.compose.runtime.*
import androidx.compose.ui.Modifier
import androidx.compose.ui.platform.LocalContext
import androidx.compose.ui.text.font.FontWeight
import androidx.compose.ui.unit.dp
import androidx.core.content.edit
import androidx.core.net.toUri

@Composable
fun SettingsScreen(prefs: SharedPreferences, onLogout: () -> Unit, onProfileUpdated: () -> Unit) {
    var isEditing by remember { mutableStateOf(false) }
    val context = LocalContext.current
    
    var stravaClientId by remember { mutableStateOf(prefs.getString("strava_client_id", "") ?: "") }
    var stravaClientSecret by remember { mutableStateOf(prefs.getString("strava_client_secret", "") ?: "") }
    val isStravaConnected = prefs.contains("strava_token")

    if (isEditing) { 
        SetupScreen(prefs) { 
            isEditing = false
            onProfileUpdated()
        } 
    } else {
        val targetCals = prefs.getString("target_calories", "0")
        Column(modifier = Modifier.fillMaxSize().padding(16.dp).verticalScroll(rememberScrollState())) {
            Text("Mon Profil", style = MaterialTheme.typography.headlineMedium)
            Spacer(Modifier.height(16.dp))
            Card(modifier = Modifier.fillMaxWidth()) {
                Column(modifier = Modifier.padding(16.dp)) {
                    ProfileItem("Objectif", prefs.getString("goal", "") ?: "")
                    ProfileItem("Cible Calorique", "$targetCals kcal")
                    ProfileItem("Diabétique", if (prefs.getBoolean("is_diabetic", false)) "Oui" else "Non")
                }
            }
            Spacer(Modifier.height(8.dp))
            Button(onClick = { isEditing = true }, modifier = Modifier.fillMaxWidth()) { Icon(Icons.Default.Edit, null); Text(" Modifier le profil") }
            
            Spacer(Modifier.height(32.dp))
            Text("Configuration Strava", style = MaterialTheme.typography.titleMedium)
            Spacer(Modifier.height(8.dp))
            
            OutlinedTextField(
                value = stravaClientId,
                onValueChange = { stravaClientId = it; prefs.edit { putString("strava_client_id", it) } },
                label = { Text("Strava Client ID") },
                modifier = Modifier.fillMaxWidth()
            )
            OutlinedTextField(
                value = stravaClientSecret,
                onValueChange = { stravaClientSecret = it; prefs.edit { putString("strava_client_secret", it) } },
                label = { Text("Strava Client Secret") },
                modifier = Modifier.fillMaxWidth()
            )
            
            Spacer(Modifier.height(8.dp))
            
            if (!isStravaConnected) {
                Button(
                    onClick = {
                        if (stravaClientId.isBlank() || stravaClientSecret.isBlank()) {
                            Toast.makeText(context, "Entrez votre ID et Secret Client", Toast.LENGTH_SHORT).show()
                        } else {
                            val intent = Intent(Intent.ACTION_VIEW, "https://www.strava.com/oauth/mobile/authorize?client_id=$stravaClientId&redirect_uri=coloricam://localhost&response_type=code&approval_prompt=auto&scope=read,activity:read_all".toUri())
                            context.startActivity(intent)
                        }
                    },
                    modifier = Modifier.fillMaxWidth()
                ) {
                    Text("Connecter Strava")
                }
            } else {
                OutlinedButton(
                    onClick = { 
                        prefs.edit { 
                            remove("strava_token")
                            remove("strava_refresh_token")
                        }
                        Toast.makeText(context, "Strava déconnecté", Toast.LENGTH_SHORT).show()
                    },
                    modifier = Modifier.fillMaxWidth()
                ) {
                    Text("Déconnecter Strava (Connecté)")
                }
            }

            Spacer(Modifier.height(32.dp))
            Button(onClick = onLogout, colors = ButtonDefaults.buttonColors(containerColor = MaterialTheme.colorScheme.error), modifier = Modifier.fillMaxWidth()) { Text("Déconnexion") }
        }
    }
}

@Composable
fun ProfileItem(label: String, value: String) {
    Row(modifier = Modifier.fillMaxWidth().padding(vertical = 4.dp), horizontalArrangement = Arrangement.SpaceBetween) {
        Text(label, fontWeight = FontWeight.Bold); Text(value)
    }
}