use egui::{vec2, Button, Label, Layout, RichText};
use tracing::error;

use crate::{
    app_style::{get_font_size, NotedeckTextStyle},
    colors::PINK,
    fonts::NamedFontFamily,
    support::Support,
};

use super::padding;

pub struct SupportView<'a> {
    support: &'a mut Support,
}

impl<'a> SupportView<'a> {
    pub fn new(support: &'a mut Support) -> Self {
        Self { support }
    }

    pub fn show(&mut self, ui: &mut egui::Ui) {
        padding(8.0, ui, |ui| {
            ui.spacing_mut().item_spacing = egui::vec2(0.0, 8.0);
            let font = egui::FontId::new(
                get_font_size(ui.ctx(), &NotedeckTextStyle::Body),
                egui::FontFamily::Name(NamedFontFamily::Bold.as_str().into()),
            );
            ui.add(Label::new(RichText::new("Running into a bug?").font(font)));
            ui.label(RichText::new("Step 1").text_style(NotedeckTextStyle::Heading3.text_style()));
            padding(8.0, ui, |ui| {
                ui.label("Open your default email client to get help from the Damus team");
                let size = vec2(120.0, 40.0);
                ui.allocate_ui_with_layout(size, Layout::top_down(egui::Align::Center), |ui| {
                    let font_size = get_font_size(ui.ctx(), &NotedeckTextStyle::Body);
                    let button_resp = ui.add(open_email_button(font_size, size));
                    if button_resp.clicked() {
                        if let Err(e) = open::that(self.support.get_mailto_url()) {
                            error!(
                                "Failed to open URL {} because: {}",
                                self.support.get_mailto_url(),
                                e
                            );
                        };
                    };
                    button_resp.on_hover_text_at_pointer(self.support.get_mailto_url());
                })
            });

            ui.add_space(8.0);

            if let Some(logs) = self.support.get_most_recent_log() {
                ui.label(
                    RichText::new("Step 2").text_style(NotedeckTextStyle::Heading3.text_style()),
                );
                let size = vec2(80.0, 40.0);
                let copy_button = Button::new(
                    RichText::new("Copy").size(get_font_size(ui.ctx(), &NotedeckTextStyle::Body)),
                )
                .fill(PINK)
                .min_size(size);
                padding(8.0, ui, |ui| {
                    ui.add(Label::new("Press the button below to copy your most recent logs to your system's clipboard. Then paste it into your email.").wrap());
                    ui.allocate_ui_with_layout(size, Layout::top_down(egui::Align::Center), |ui| {
                        if ui.add(copy_button).clicked() {
                            ui.output_mut(|w| {
                                w.copied_text = logs.to_string();
                            });
                        }
                    });
                });
            } else {
                ui.label(
                    egui::RichText::new("ERROR: Could not find logs on system")
                        .color(egui::Color32::RED),
                );
            }
            ui.label(format!("Notedeck {}", env!("CARGO_PKG_VERSION")));
            ui.label(format!("Commit hash: {}", env!("GIT_COMMIT_HASH")));
        });
    }
}

fn open_email_button(font_size: f32, size: egui::Vec2) -> impl egui::Widget {
    Button::new(RichText::new("Open Email").size(font_size))
        .fill(PINK)
        .min_size(size)
}