package com.mindmachine.mvp.domain

enum class VisualPattern { FLASH, PULSE }
enum class SessionMode { AUDIO_VISUAL, AUDIO_ONLY, VISUAL_ONLY }
enum class RuntimeState { IDLE, COUNTDOWN, RUNNING, PAUSED, INTERRUPTED, COMPLETED, STOPPED, ERROR }
enum class CountdownPreference(val seconds: Int) { OFF(0), FIVE(5), TEN(10) }

data class SessionPreset(
    val id: String,
    val name: String,
    val description: String,
    val defaultDurationSec: Int,
    val visualPatternType: VisualPattern,
    val flashIntervalMs: Int,
    val intensityPercent: Int,
    val carrierFrequencyHz: Float,
    val binauralDifferenceHz: Float,
    val cautionNote: String,
    val sortOrder: Int,
)

data class SessionConfig(
    val presetId: String,
    val durationSec: Int,
    val mode: SessionMode,
    val visualPatternType: VisualPattern,
    val flashIntervalMs: Int,
    val intensityPercent: Int,
    val carrierFrequencyHz: Float,
    val binauralDifferenceHz: Float,
)

data class AppSettings(
    val safetyAcknowledged: Boolean = false,
    val safetyAcknowledgedVersion: Int = 0,
    val countdownPreference: CountdownPreference = CountdownPreference.FIVE,
    val defaultModePreference: SessionMode = SessionMode.AUDIO_VISUAL,
    val showHolderGuidanceBeforeSession: Boolean = false,
    val lastPresetId: String? = null,
)

object Presets {
    val builtIn = listOf(
        SessionPreset(
            "relax", "Relax", "Gentle pulse, slower beat", 10 * 60,
            VisualPattern.PULSE, 167, 60, 200f, 6f,
            "Stop if discomfort occurs.", 1
        ),
        SessionPreset(
            "focus", "Focus", "Steady flash, conservative alert beat", 15 * 60,
            VisualPattern.FLASH, 100, 65, 220f, 10f,
            "Use in a safe seated place only.", 2
        ),
        SessionPreset(
            "sleep", "Sleep Prep", "Slow pulse, low intensity", 20 * 60,
            VisualPattern.PULSE, 333, 45, 180f, 3f,
            "Do not use while doing other activities.", 3
        )
    )
}

fun SessionPreset.toConfig(defaultMode: SessionMode = SessionMode.AUDIO_VISUAL) = SessionConfig(
    presetId = id,
    durationSec = defaultDurationSec,
    mode = defaultMode,
    visualPatternType = visualPatternType,
    flashIntervalMs = flashIntervalMs,
    intensityPercent = intensityPercent,
    carrierFrequencyHz = carrierFrequencyHz,
    binauralDifferenceHz = binauralDifferenceHz,
)