package com.example.animalrating

import android.content.Intent
import android.os.Bundle
import android.widget.ArrayAdapter
import android.widget.Button
import android.widget.SeekBar
import android.widget.Spinner
import android.widget.TextView
import androidx.appcompat.app.AppCompatActivity

class HomeActivity : AppCompatActivity() {
    
    companion object {
        const val ALGORITHM_HAMMING = "Hamming Distance"
        const val ALGORITHM_EUCLIDEAN = "Euclidean Distance"
        const val ALGORITHM_JACCARD = "Jaccard Similarity"
    }

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_home)

        setupUI()
    }
    
    private fun setupUI() {
        // Navigation buttons
        findViewById<Button>(R.id.btnViewGallery).setOnClickListener {
            startActivity(Intent(this, GalleryActivity::class.java))
        }

        findViewById<Button>(R.id.btnSelectCow).setOnClickListener {
            saveSettingsAndStart()
        }
        
        // Algorithm Spinner
        val spinner = findViewById<Spinner>(R.id.spinnerAlgorithm)
        val algorithms = listOf(ALGORITHM_HAMMING, ALGORITHM_EUCLIDEAN, ALGORITHM_JACCARD)
        val adapter = ArrayAdapter(this, android.R.layout.simple_spinner_item, algorithms)
        adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item)
        spinner.adapter = adapter
        
        // Set default selection from preferences or intent
        val prefs = getSharedPreferences("AnimalRatingPrefs", MODE_PRIVATE)
        val savedAlg = prefs.getString("ALGORITHM", ALGORITHM_HAMMING)
        spinner.setSelection(algorithms.indexOf(savedAlg))
        
        // Threshold SeekBar
        val seekBar = findViewById<SeekBar>(R.id.seekBarThreshold)
        val tvThreshold = findViewById<TextView>(R.id.tvThresholdValue)
        
        val savedThreshold = prefs.getInt("THRESHOLD", 75)
        seekBar.progress = savedThreshold
        tvThreshold.text = "$savedThreshold%"
        
        seekBar.setOnSeekBarChangeListener(object : SeekBar.OnSeekBarChangeListener {
            override fun onProgressChanged(seekBar: SeekBar?, progress: Int, fromUser: Boolean) {
                tvThreshold.text = "$progress%"
            }
            override fun onStartTrackingTouch(seekBar: SeekBar?) {}
            override fun onStopTrackingTouch(seekBar: SeekBar?) {}
        })
    }
    
    private fun saveSettingsAndStart() {
        val spinner = findViewById<Spinner>(R.id.spinnerAlgorithm)
        val seekBar = findViewById<SeekBar>(R.id.seekBarThreshold)
        
        val selectedAlgorithm = spinner.selectedItem.toString()
        val threshold = seekBar.progress
        
        // Save to preferences
        val prefs = getSharedPreferences("AnimalRatingPrefs", MODE_PRIVATE)
        prefs.edit().apply {
            putString("ALGORITHM", selectedAlgorithm)
            putInt("THRESHOLD", threshold)
            apply()
        }
        
        startActivity(Intent(this, CowSelectionActivity::class.java))
    }
}