package com.jttools.datacontrol.guard

import android.content.Context
import android.content.Intent
import android.os.Bundle
import androidx.activity.ComponentActivity
import androidx.activity.OnBackPressedCallback
import androidx.activity.compose.setContent
import androidx.activity.enableEdgeToEdge
import androidx.compose.foundation.layout.Arrangement
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.Spacer
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.foundation.layout.height
import androidx.compose.foundation.layout.padding
import androidx.compose.foundation.layout.size
import androidx.compose.material.icons.Icons
import androidx.compose.material.icons.filled.Lock
import androidx.compose.material3.Button
import androidx.compose.material3.Icon
import androidx.compose.material3.MaterialTheme
import androidx.compose.material3.Surface
import androidx.compose.material3.Text
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.text.style.TextAlign
import androidx.compose.ui.unit.dp
import com.jttools.datacontrol.ui.theme.DataControlTheme

/** Écran affiché par-dessus une application bloquée : explique pourquoi et renvoie à l'accueil. */
class BlockedActivity : ComponentActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        enableEdgeToEdge()
        // Retour : renvoie à l'accueil, jamais vers l'application bloquée.
        onBackPressedDispatcher.addCallback(this, object : OnBackPressedCallback(true) {
            override fun handleOnBackPressed() = goHome()
        })
        val label = intent.getStringExtra(EXTRA_LABEL).orEmpty()
        val message = intent.getStringExtra(EXTRA_MESSAGE).orEmpty()
        setContent {
            DataControlTheme {
                Surface(Modifier.fillMaxSize(), color = MaterialTheme.colorScheme.errorContainer) {
                    Column(
                        Modifier.fillMaxSize().padding(32.dp),
                        horizontalAlignment = Alignment.CenterHorizontally,
                        verticalArrangement = Arrangement.Center
                    ) {
                        Icon(Icons.Filled.Lock, contentDescription = null, modifier = Modifier.size(72.dp))
                        Spacer(Modifier.height(20.dp))
                        Text(label, style = MaterialTheme.typography.headlineSmall, textAlign = TextAlign.Center)
                        Spacer(Modifier.height(10.dp))
                        Text(message, style = MaterialTheme.typography.bodyLarge, textAlign = TextAlign.Center)
                        Spacer(Modifier.height(28.dp))
                        Button(onClick = { goHome() }) { Text("Retour à l'accueil") }
                    }
                }
            }
        }
    }


    private fun goHome() {
        startActivity(Intent(Intent.ACTION_MAIN).addCategory(Intent.CATEGORY_HOME).addFlags(Intent.FLAG_ACTIVITY_NEW_TASK))
        finish()
    }

    companion object {
        private const val EXTRA_LABEL = "label"
        private const val EXTRA_MESSAGE = "message"

        fun intent(context: Context, label: String, message: String): Intent =
            Intent(context, BlockedActivity::class.java)
                .putExtra(EXTRA_LABEL, label)
                .putExtra(EXTRA_MESSAGE, message)
                .addFlags(Intent.FLAG_ACTIVITY_NEW_TASK or Intent.FLAG_ACTIVITY_SINGLE_TOP)
    }
}