use std::marker::PhantomData;

use druid::{BoxConstraints, Env, Event, EventCtx, LayoutCtx, LifeCycle, LifeCycleCtx, PaintCtx, Size, UpdateCtx, Widget, WidgetPod};
use druid::text::RichText;
use druid::widget::{LineBreaking, RawLabel};

pub struct RichTextDisplay<T> {
    text: RichText,
    label: WidgetPod<RichText, RawLabel<RichText>>,
    _phantom: PhantomData<T>,
}

impl<T> RichTextDisplay<T> {
    pub fn new(text: RichText) -> Self {
        Self {
            text,
            label: WidgetPod::new(RawLabel::new().with_line_break_mode(LineBreaking::WordWrap)),
            _phantom: PhantomData,
        }
    }
}

impl<T> Widget<T> for RichTextDisplay<T> {
    fn event(&mut self, ctx: &mut EventCtx, event: &Event, _data: &mut T, env: &Env) {
        self.label.event(ctx, event, &mut self.text, env);
    }

    fn lifecycle(&mut self, ctx: &mut LifeCycleCtx, event: &LifeCycle, _data: &T, env: &Env) {
        self.label.lifecycle(ctx, event, &self.text, env);
    }

    fn update(&mut self, ctx: &mut UpdateCtx, _old_data: &T, _data: &T, env: &Env) {
        self.label.update(ctx, &self.text, env);
    }

    fn layout(&mut self, ctx: &mut LayoutCtx, bc: &BoxConstraints, _data: &T, env: &Env) -> Size {
        self.label.layout(ctx, bc, &self.text, env)
    }

    fn paint(&mut self, ctx: &mut PaintCtx, _data: &T, env: &Env) {
        self.label.paint(ctx, &self.text, env);
    }
}