/*

 * AboutOss is an utility library to retrieve and display

 * opensource licenses in Android applications.

 *

 * Copyright (C) 2023-2025 by Frederic-Charles Barthelery.

 *

 * This file is part of AboutOss.

 *

 * AboutOss is free software: you can redistribute it and/or modify

 * it under the terms of the GNU General Public License as published by

 * the Free Software Foundation, either version 3 of the License, or

 * (at your option) any later version.

 *

 * AboutOss is distributed in the hope that it will be useful,

 * but WITHOUT ANY WARRANTY; without even the implied warranty of

 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

 * GNU General Public License for more details.

 *

 * You should have received a copy of the GNU General Public License

 * along with AboutOss.  If not, see <http://www.gnu.org/licenses/>.

 */

package com.geekorum.aboutoss.ui.material3

import android.app.Activity

import android.net.Uri

import android.os.Bundle

import androidx.activity.compose.setContent

import androidx.compose.foundation.isSystemInDarkTheme

import androidx.compose.material3.MaterialTheme

import androidx.compose.runtime.Composable

import androidx.compose.runtime.SideEffect

import androidx.compose.ui.graphics.toArgb

import androidx.compose.ui.platform.LocalView

import androidx.core.view.WindowCompat

import androidx.navigation.compose.NavHost

import androidx.navigation.compose.composable

import androidx.navigation.compose.rememberNavController

import com.geekorum.aboutoss.ui.common.BaseOpensourceLicenseActivity

import com.geekorum.aboutoss.ui.common.OpenSourceLicensesViewModel

/**

 * Activity to display opensource license information

 *

 * This activity use Material compose to create the UI.

 * You can specify the Material theme to use by setting [themeProvider]

 * before launching the activity

 */

open class OpenSourceLicensesActivity : BaseOpensourceLicenseActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {

        super.onCreate(savedInstanceState)

        WindowCompat.setDecorFitsSystemWindows(window, false)

        setContent {

            themeProvider {

                DependencyNavHost(

                    openSourceLicensesViewModel = viewModel,

                    navigateUp = {

                        if (!onNavigateUp()) {

                            finish()

                        }

                    }

                )

            }

        }

    }

    companion object {

        /**

         * The composable Theme function to set the theme of the UI in [OpenSourceLicensesActivity]

         * Default to base material theme [MaterialTheme]

         */

        var themeProvider: @Composable (@Composable () -> Unit) -> Unit = { content ->

            val darkTheme: Boolean = isSystemInDarkTheme()

            val colorScheme = MaterialTheme.colorScheme

            val view = LocalView.current

            if (!view.isInEditMode) {

                SideEffect {

                    val window = (view.context as Activity).window

                    window.statusBarColor = colorScheme.primary.toArgb()

                    WindowCompat.getInsetsController(window, view).isAppearanceLightStatusBars = darkTheme

                }

            }

            MaterialTheme(content = content)

        }

    }

}

@Composable

fun DependencyNavHost(

    openSourceLicensesViewModel: OpenSourceLicensesViewModel,

    navigateUp: () -> Unit

) {

    val navController = rememberNavController()

    NavHost(navController, startDestination = "dependencies") {

        composable("dependencies") {

            OpenSourceDependenciesListScreen(

                viewModel = openSourceLicensesViewModel,

                onDependencyClick = {

                    navController.navigate("dependency_license/${Uri.encode(it)}")

                },

                onUpClick = navigateUp

            )

        }

        composable("dependency_license/{dependency}") {

            val dependency = requireNotNull(it.arguments?.getString("dependency"))

            OpenSourceLicenseScreen(

                viewModel = openSourceLicensesViewModel,

                dependency = dependency,

                onUpClick = {

                    navController.popBackStack()

                },

            )

        }

    }

}