package com.ultron.jarvistv

import android.content.Intent
import android.os.Bundle
import android.provider.Settings
import android.text.TextUtils
import android.view.View
import android.widget.TextView
import androidx.appcompat.app.AppCompatActivity

/**
 * The Jarvis face on the TV. Boots the ControlService, nudges the user to enable the
 * accessibility engine (one-time), shows the local IP to point commands at, and streams a
 * live status feed of what Jarvis is doing. v1 UI is intentionally simple — the animated
 * "arc reactor" Jarvis look comes in the next iteration.
 */
class MainActivity : AppCompatActivity() {

    private lateinit var statusView: TextView
    private lateinit var hintView: TextView
    private val feed = ArrayDeque<String>()

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        statusView = findViewById(R.id.status)
        hintView = findViewById(R.id.hint)

        // Start the always-on command server.
        startService(Intent(this, ControlService::class.java))
    }

    override fun onResume() {
        super.onResume()
        UiBus.subscribe { line ->
            feed.addFirst(line)
            while (feed.size > 8) feed.removeLast()
            statusView.text = feed.joinToString("\n")
        }
        refreshHint()
    }

    override fun onPause() {
        UiBus.unsubscribe()
        super.onPause()
    }

    private fun refreshHint() {
        val ip = NetUtil.localIp(this) ?: "unknown"
        if (!accessibilityEnabled()) {
            hintView.visibility = View.VISIBLE
            hintView.text = "⚠ Enable Jarvis control:\n" +
                "Settings ▸ Accessibility ▸ Jarvis ▸ On\n\n" +
                "Then send commands to  http://$ip:${ControlService.PORT}/cmd"
        } else {
            hintView.visibility = View.VISIBLE
            hintView.text = "Jarvis ready ✓   →  http://$ip:${ControlService.PORT}/cmd"
        }
    }

    private fun accessibilityEnabled(): Boolean {
        val flat = Settings.Secure.getString(
            contentResolver, Settings.Secure.ENABLED_ACCESSIBILITY_SERVICES) ?: return false
        val me = packageName + "/" + JarvisAccessibilityService::class.java.name
        val splitter = TextUtils.SimpleStringSplitter(':')
        splitter.setString(flat)
        while (splitter.hasNext()) if (splitter.next().equals(me, ignoreCase = true)) return true
        return false
    }
}