package com.peachpasswords

import android.content.res.Configuration
import android.graphics.Color as AndroidColor
import android.graphics.drawable.ColorDrawable
import android.os.Bundle
import android.view.WindowManager
import androidx.activity.compose.setContent
import androidx.activity.enableEdgeToEdge
import androidx.compose.foundation.isSystemInDarkTheme
import androidx.compose.runtime.collectAsState
import androidx.compose.runtime.getValue
import androidx.core.splashscreen.SplashScreen.Companion.installSplashScreen
import androidx.fragment.app.FragmentActivity
import dagger.hilt.android.AndroidEntryPoint
import javax.inject.Inject
import com.peachpasswords.ui.PeachAppNavHost
import com.peachpasswords.ui.onboarding.ONBOARD_KEY
import com.peachpasswords.ui.onboarding.ONBOARD_PREFS
import com.peachpasswords.ui.onboarding.onboardingStartDestination
import com.peachpasswords.ui.theme.ACCENT_COLORS
import com.peachpasswords.ui.theme.DEFAULT_ACCENT
import com.peachpasswords.ui.theme.PeachTheme
import com.peachpasswords.vault.VaultLockTimer
import com.peachpasswords.vault.VaultRepository

// FragmentActivity (not ComponentActivity) so androidx BiometricPrompt can attach.
@AndroidEntryPoint
class MainActivity : FragmentActivity() {
    @Inject lateinit var vault: VaultRepository
    @Inject lateinit var lockTimer: VaultLockTimer

    // Every touch/key event resets the idle auto-lock countdown (CF-1).
    override fun onUserInteraction() {
        super.onUserInteraction()
        lockTimer.poke()
    }

    override fun onCreate(savedInstanceState: Bundle?) {
        installSplashScreen()
        super.onCreate(savedInstanceState)

        // Match the splash/window fill to the resolved theme's --bg so launch
        // never flashes the wrong colour before Compose draws. Resolved from the
        // persisted setting synchronously (system mode reads the device night mode).
        val initialTheme = vault.settings.value.theme
        val initialDark = when (initialTheme) {
            "light" -> false
            "system" -> (resources.configuration.uiMode and Configuration.UI_MODE_NIGHT_MASK) ==
                Configuration.UI_MODE_NIGHT_YES
            else -> true
        }
        window.setBackgroundDrawable(
            ColorDrawable(AndroidColor.parseColor(if (initialDark) "#0C0A06" else "#EFEEE9")),
        )

        enableEdgeToEdge()

        // Block screenshots / recents thumbnails of the vault in release builds.
        if (!BuildConfig.DEBUG) {
            window.setFlags(
                WindowManager.LayoutParams.FLAG_SECURE,
                WindowManager.LayoutParams.FLAG_SECURE,
            )
        }

        // Onboarding runs once, only on a fresh install with no vault yet.
        val onboarded = getSharedPreferences(ONBOARD_PREFS, MODE_PRIVATE)
            .getBoolean(ONBOARD_KEY, false)
        val start = onboardingStartDestination(hasVault = vault.hasVault(), onboarded = onboarded)

        setContent {
            val settings by vault.settings.collectAsState()
            val darkTheme = when (settings.theme) {
                "light" -> false
                "system" -> isSystemInDarkTheme()
                else -> true
            }
            val accent = ACCENT_COLORS[settings.accentColor] ?: DEFAULT_ACCENT
            PeachTheme(
                darkTheme = darkTheme,
                accent = accent,
                reduceMotion = settings.reduceMotion,
            ) {
                PeachAppNavHost(startDestination = start, isUnlocked = vault.isUnlocked)
            }
        }
    }
}