// hal/led_stub.cpp
#include "hal/led_stub.h"
#include "esp_log.h"

static const char* TAG = "led_stub";

class DefaultLedStub : public LedStub {
private:
    LedState led_states[10];  // Support up to 10 LEDs
    bool initialized;
    
public:
    DefaultLedStub() : initialized(false) {
        // Initialize all LEDs to off state
        for (int i = 0; i < 10; i++) {
            led_states[i].active = false;
            led_states[i].velocity = 0;
        }
    }
    
    void begin() override {
        // GPIO initialization would go here
        // For Phase 1, this is a stub
        initialized = true;
        ESP_LOGI(TAG, "LED stub initialized (GPIO pins not configured yet)");
    }
    
    void set_led_state(uint8_t note, uint8_t channel, uint8_t velocity) override {
        if (!initialized) return;
        
        // For Phase 1, we assume note 0-9 maps directly to LED 0-9
        // This is configurable in the PadMapping
        uint8_t led_index = note_to_index(note);
        
        if (led_index < 10) {
            led_states[led_index].note = note;
            led_states[led_index].channel = channel;
            led_states[led_index].velocity = velocity;
            led_states[led_index].active = (velocity > 0);
            led_states[led_index].timestamp = 0;  // TODO: Add proper timestamp
            
            ESP_LOGI(TAG, "LED STATE: Note %d -> LED %d Channel %d Velocity %d (%s)",
                     note, led_index, channel, velocity,
                     velocity > 0 ? "ON" : "OFF");
        } else {
            ESP_LOGW(TAG, "LED index out of range: %d (Note: %d)", led_index, note);
        }
    }
    
    void clear_all() override {
        for (int i = 0; i < 10; i++) {
            led_states[i].active = false;
            led_states[i].velocity = 0;
        }
        ESP_LOGI(TAG, "All LEDs cleared");
    }
};

// Factory function to create the default LED stub
LedStub* create_led_stub() {
    return new DefaultLedStub();
}