/*
 * Copyright (C) 2014-2020 Arpit Khurana <arpitkh96@gmail.com>, Vishal Nehra <vishalmeham2@gmail.com>,
 * Emmanuel Messulam<emmanuelbendavid@gmail.com>, Raymond Lai <airwave209gt at gmail.com> and Contributors.
 *
 * This file is part of Amaze File Manager.
 *
 * Amaze File Manager 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.
 *
 * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package com.amaze.filemanager.asynchronous.asynctasks

import android.Manifest
import android.content.Context
import android.os.Build
import android.os.Build.VERSION_CODES.LOLLIPOP
import android.os.Build.VERSION_CODES.P
import android.os.Looper
import android.os.storage.StorageManager
import androidx.annotation.RequiresApi
import androidx.lifecycle.Lifecycle
import androidx.test.core.app.ActivityScenario
import androidx.test.core.app.ApplicationProvider
import androidx.test.ext.junit.runners.AndroidJUnit4
import androidx.test.rule.GrantPermissionRule
import com.amaze.filemanager.R
import com.amaze.filemanager.filesystem.HybridFileParcelable
import com.amaze.filemanager.shadows.ShadowFileUtils
import com.amaze.filemanager.shadows.ShadowMultiDex
import com.amaze.filemanager.shadows.ShadowSmbUtil
import com.amaze.filemanager.test.ShadowPasswordUtil
import com.amaze.filemanager.test.ShadowTabHandler
import com.amaze.filemanager.test.TestUtils
import com.amaze.filemanager.ui.activities.MainActivity
import io.reactivex.android.plugins.RxAndroidPlugins
import io.reactivex.plugins.RxJavaPlugins
import io.reactivex.schedulers.Schedulers
import org.junit.After
import org.junit.Assert.assertEquals
import org.junit.Assert.assertFalse
import org.junit.Assert.assertNotNull
import org.junit.Assert.assertNull
import org.junit.Assert.assertTrue
import org.junit.Before
import org.junit.Rule
import org.junit.runner.RunWith
import org.robolectric.Shadows.shadowOf
import org.robolectric.annotation.Config
import org.robolectric.annotation.LooperMode
import org.robolectric.shadows.ShadowSQLiteConnection
import org.robolectric.shadows.ShadowToast

@RunWith(AndroidJUnit4::class)
@LooperMode(LooperMode.Mode.PAUSED)
@Config(
    shadows = [
        ShadowMultiDex::class,
        ShadowSmbUtil::class,
        ShadowTabHandler::class,
        ShadowFileUtils::class,
        ShadowPasswordUtil::class,
    ],
    sdk = [LOLLIPOP, P, Build.VERSION_CODES.R],
)
abstract class AbstractDeleteTaskTestBase {
    private var ctx: Context? = null

    @Rule
    @JvmField
    @RequiresApi(Build.VERSION_CODES.R)
    val allFilesPermissionRule =
        GrantPermissionRule
            .grant(Manifest.permission.MANAGE_EXTERNAL_STORAGE)

    /**
     * Test case setup.
     *
     * TODO: some even more generic test case base to prevent copy-and-paste?
     */
    @Before
    fun setUp() {
        ctx = ApplicationProvider.getApplicationContext()
        RxJavaPlugins.reset()
        RxJavaPlugins.setIoSchedulerHandler { Schedulers.trampoline() }
        RxAndroidPlugins.reset()
        RxAndroidPlugins.setInitMainThreadSchedulerHandler { Schedulers.trampoline() }
    }

    /**
     * Close database on test finished.
     */
    @After
    fun tearDown() {
        ShadowSQLiteConnection.reset()
    }

    protected fun doTestDeleteFileOk(file: HybridFileParcelable) {
        val task = DeleteTask(ctx!!, false)
        val result = task.doInBackground(ArrayList(listOf(file)))
        assertTrue(result.result)
        assertNull(result.exception)

        task.onPostExecute(result)
        shadowOf(Looper.getMainLooper()).idle()
        assertNotNull(ShadowToast.getLatestToast())
        assertEquals(ctx?.getString(R.string.done), ShadowToast.getTextOfLatestToast())
    }

    protected fun doTestDeleteFileAccessDenied(file: HybridFileParcelable) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) TestUtils.initializeInternalStorage()

        ActivityScenario.launch(MainActivity::class.java).also {
            shadowOf(Looper.getMainLooper()).idle()
        }.moveToState(Lifecycle.State.STARTED).onActivity { activity ->

            val task = DeleteTask(ctx!!, false)
            val result = task.doInBackground(ArrayList(listOf(file)))
            if (result.result != null) {
                assertFalse(result.result)
            } else {
                assertNotNull(result.exception)
            }
            task.onPostExecute(result)
            shadowOf(Looper.getMainLooper()).idle()

            shadowOf(activity).broadcastIntents.run {
                assertTrue(size > 0)
                find {
                    MainActivity.TAG_INTENT_FILTER_GENERAL.equals(it.action)
                }!!.apply {
                    assertEquals(MainActivity.TAG_INTENT_FILTER_GENERAL, action)
                    getParcelableArrayListExtra<HybridFileParcelable>(
                        MainActivity.TAG_INTENT_FILTER_FAILED_OPS,
                    )
                        .run {
                            assertTrue(size > 0)
                            assertEquals(file.path, this!![0].path)
                        }
                }
            }
        }.moveToState(Lifecycle.State.DESTROYED).close().run {
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
                shadowOf(ctx?.getSystemService(StorageManager::class.java))
                    .resetStorageVolumeList()
            }
        }
    }
}