#pragma once

#include <Arduino.h>
#include "config.h"

enum class CycleMode : uint8_t {
    Random = 0,
    Chronological = 1,
    ReverseChronological = 2,
    FavoritesWeighted = 3,
    WeightedChronological = 4,
    WeightedReverseChronological = 5
};

enum class ImageQuality : uint8_t {
    Preview = 0,
    Original = 1
};

enum class MetaPosition : uint8_t {
    // Captioned mode (full-width bar)
    CaptionBottom = 0,
    CaptionTop = 1,
    // Overlay mode (corner badge)
    OverlayTopLeft = 2,
    OverlayTopRight = 3,
    OverlayBottomLeft = 4,
    OverlayBottomRight = 5
};

// Metadata flags bitmask
constexpr uint8_t META_DATE     = 0x01;
constexpr uint8_t META_TIME     = 0x20;
constexpr uint8_t META_LOCATION = 0x02;
constexpr uint8_t META_PEOPLE   = 0x04;
constexpr uint8_t META_ALBUM    = 0x08;
constexpr uint8_t META_CAMERA   = 0x10;

struct Settings {
    // WiFi
    String wifi_ssid;
    String wifi_pass;

    // Immich
    String immich_url;
    String immich_key;

    // Slideshow
    uint8_t interval_min;
    CycleMode cycle_mode;
    ImageQuality img_quality;

    // Display
    uint8_t meta_flags;
    MetaPosition meta_pos;
    String date_fmt;  // strftime-style, default "%Y-%m-%d"
    String time_fmt;  // strftime-style, default "%H:%M:%S"

    // Image pipeline
    uint8_t pipeline_mode;  // 0=dynamic, 1=balanced, 2=none
    uint8_t dither_noise;   // 1=blue noise dither smoothing ON, 0=OFF

    // Device
    uint8_t led_brightness;
    uint8_t show_battery;   // 1 = show battery indicator on display
    uint32_t queue_cursor;
    String albums_json;
};

class SettingsManager {
public:
    void begin();
    Settings get();
    void save(const Settings& s);
    void saveField(const char* key, uint8_t value);
    void saveField(const char* key, uint32_t value);
    void saveField(const char* key, const char* value);
    void factoryReset();
    bool isProvisioned();

private:
    String readString(const char* key, const char* defaultValue = "");
    uint8_t readU8(const char* key, uint8_t defaultValue = 0);
    uint32_t readU32(const char* key, uint32_t defaultValue = 0);
    void writeString(const char* key, const String& value);
    void writeU8(const char* key, uint8_t value);
    void writeU32(const char* key, uint32_t value);
};