#include "Widget.hpp"
#include "../Fonts.hpp"
#include "lvgl.h"

Widget::Widget(const WidgetConfig& config)
    : config_(config)
    , obj_(nullptr)
{
}

Widget::~Widget() {
    destroy();
}

void Widget::destroy() {
    if (obj_ != nullptr) {
        if (lv_obj_is_valid(obj_)) {
            lv_obj_delete(obj_);
        }
        obj_ = nullptr;
    }
}

void Widget::applyStyle() {
    if (obj_ == nullptr) return;
    applyCommonStyle();
}

void Widget::onKnxValue(float /*value*/) {
    // Default: do nothing
}

void Widget::onKnxSwitch(bool /*value*/) {
    // Default: do nothing
}

void Widget::onKnxText(const char* /*text*/) {
    // Default: do nothing
}

void Widget::onKnxTime(const struct tm& /*value*/, TextSource /*source*/) {
    // Default: do nothing
}

void Widget::onHistoryUpdate() {
    // Default: do nothing
}

void Widget::applyCommonStyle() {
    if (obj_ == nullptr) return;

    // Text color
    lv_obj_set_style_text_color(obj_, lv_color_make(
        config_.textColor.r, config_.textColor.g, config_.textColor.b), 0);

    // Font
    lv_obj_set_style_text_font(obj_, getFontBySize(config_.fontSize), 0);

    // Background (for buttons and labels with bg)
    if (config_.bgOpacity > 0) {
        lv_obj_set_style_bg_color(obj_, lv_color_make(
            config_.bgColor.r, config_.bgColor.g, config_.bgColor.b), 0);
        lv_obj_set_style_bg_opa(obj_, config_.bgOpacity, 0);
    }

    // Border radius
    if (config_.borderRadius > 0) {
        lv_obj_set_style_radius(obj_, config_.borderRadius, 0);
    }

    // Shadow
    applyShadowStyle();
}

void Widget::applyShadowStyle() {
    return;
    if (obj_ == nullptr || !config_.shadow.enabled) return;

    // Limit shadow values to prevent memory issues on ESP32
    constexpr int16_t MAX_SHADOW_BLUR = 15;
    constexpr int16_t MAX_SHADOW_SPREAD = 8;

    int16_t blur = config_.shadow.blur;
    int16_t spread = config_.shadow.spread;

    if (blur > MAX_SHADOW_BLUR) blur = MAX_SHADOW_BLUR;
    if (blur < 0) blur = 0;
    if (spread > MAX_SHADOW_SPREAD) spread = MAX_SHADOW_SPREAD;
    if (spread < 0) spread = 0;
    if (blur == 0) return;

    lv_color_t shadowColor = lv_color_make(
        config_.shadow.color.r, config_.shadow.color.g, config_.shadow.color.b);

    // Default state shadow
    lv_obj_set_style_shadow_color(obj_, shadowColor, 0);
    lv_obj_set_style_shadow_opa(obj_, 180, 0);
    lv_obj_set_style_shadow_width(obj_, blur, 0);
    lv_obj_set_style_shadow_spread(obj_, spread, 0);
    lv_obj_set_style_shadow_offset_x(obj_, config_.shadow.offsetX, 0);
    lv_obj_set_style_shadow_offset_y(obj_, config_.shadow.offsetY, 0);

    // For clickable widgets: explicitly define PRESSED state with no shadow
    // This prevents PPA/DMA2D freeze when shadow needs recalculation during state change
    if (lv_obj_has_flag(obj_, LV_OBJ_FLAG_CLICKABLE)) {
        lv_obj_set_style_shadow_width(obj_, 0, LV_STATE_PRESSED);
        lv_obj_set_style_shadow_spread(obj_, 0, LV_STATE_PRESSED);
        lv_obj_set_style_shadow_opa(obj_, 0, LV_STATE_PRESSED);
    }
}

const lv_font_t* Widget::getFontBySize(uint8_t sizeIndex) {
    return Fonts::bySizeIndex(sizeIndex);
}