ClashMetaForAndroid/app/src/main/java/com/github/kr328/clash/MainActivity.kt at e18adfc030f9d90220ffbd64da826c67423ec3aa · MetaCubeX/ClashMetaForAndroid · GitHub

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package com.github.kr328.clash

import android.app.ActivityManager
import android.os.Bundle
import androidx.activity.result.contract.ActivityResultContracts
import androidx.lifecycle.lifecycleScope
import com.github.kr328.clash.common.util.intent
import com.github.kr328.clash.common.util.ticker
import com.github.kr328.clash.core.bridge.Bridge
import com.github.kr328.clash.design.MainDesign
import com.github.kr328.clash.design.ui.ToastDuration
import com.github.kr328.clash.util.startClashService
import com.github.kr328.clash.util.stopClashService
import com.github.kr328.clash.util.withClash
import com.github.kr328.clash.util.withProfile
import kotlinx.coroutines.Dispatchers
import kotlinx.coroutines.isActive
import kotlinx.coroutines.launch
import kotlinx.coroutines.selects.select
import kotlinx.coroutines.withContext
import java.util.concurrent.TimeUnit

class MainActivity : BaseActivity<MainDesign>() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)

        lifecycleScope.launch {
            (getSystemService(ACTIVITY_SERVICE) as ActivityManager).let { manager ->
                manager.appTasks.forEach { task ->
                    task?.setExcludeFromRecents(uiStore.excludeFromRecents)
                }
            }
        }
    }

    override suspend fun main() {
        val design = MainDesign(this)

        setContentDesign(design)

        design.fetch()

        val ticker = ticker(TimeUnit.SECONDS.toMillis(1))

        while (isActive) {
            select<Unit> {
                events.onReceive {
                    when (it) {
                        Event.ActivityStart,
                        Event.ServiceRecreated,
                        Event.ClashStop, Event.ClashStart,
                        Event.ProfileLoaded, Event.ProfileChanged -> design.fetch()
                        else -> Unit
                    }
                }
                design.requests.onReceive {
                    when (it) {
                        MainDesign.Request.ToggleStatus -> {
                            if (clashRunning)
                                stopClashService()
                            else
                                design.startClash()
                        }
                        MainDesign.Request.OpenProxy ->
                            startActivity(ProxyActivity::class.intent)
                        MainDesign.Request.OpenProfiles ->
                            startActivity(ProfilesActivity::class.intent)
                        MainDesign.Request.OpenProviders ->
                            startActivity(ProvidersActivity::class.intent)
                        MainDesign.Request.OpenLogs ->
                            startActivity(LogsActivity::class.intent)
                        MainDesign.Request.OpenSettings ->
                            startActivity(SettingsActivity::class.intent)
                        MainDesign.Request.OpenHelp ->
                            startActivity(HelpActivity::class.intent)
                        MainDesign.Request.OpenAbout ->
                            design.showAbout(queryAppVersionName())
                    }
                }
                if (clashRunning) {
                    ticker.onReceive {
                        design.fetchTraffic()
                    }
                }
            }
        }
    }

    private suspend fun MainDesign.fetch() {
        setClashRunning(clashRunning)

        val state = withClash {
            queryTunnelState()
        }
        val providers = withClash {
            queryProviders()
        }

        setMode(state.mode)
        setHasProviders(providers.isNotEmpty())

        withProfile {
            setProfileName(queryActive()?.name)
        }
    }

    private suspend fun MainDesign.fetchTraffic() {
        withClash {
            setForwarded(queryTrafficTotal())
        }
    }

    private suspend fun MainDesign.startClash() {
        val active = withProfile { queryActive() }

        if (active == null || !active.imported) {
            showToast(R.string.no_profile_selected, ToastDuration.Long) {
                setAction(R.string.profiles) {
                    startActivity(ProfilesActivity::class.intent)
                }
            }

            return
        }

        val vpnRequest = startClashService()

        try {
            if (vpnRequest != null) {
                val result = startActivityForResult(
                    ActivityResultContracts.StartActivityForResult(),
                    vpnRequest
                )

                if (result.resultCode == RESULT_OK)
                    startClashService()
            }
        } catch (e: Exception) {
            design?.showToast(R.string.unable_to_start_vpn, ToastDuration.Long)
        }
    }

    private suspend fun queryAppVersionName(): String {
        return withContext(Dispatchers.IO) {
            packageManager.getPackageInfo(packageName, 0).versionName + "\n" + Bridge.nativeCoreVersion().replace("_", "-")
        }
    }
}