use chrono::{Local, NaiveDate};
use eframe::{
    egui::{self, Slider, Window},
    epaint::Color32,
};
use egui_datepicker::DatePicker;

use crate::{AppState, roll::Roll};

pub struct NewRollWindow {
    id: String,
    name: String,
    desc: String,
    date: NaiveDate,
    exps: u8,
    show_id_req_err: bool,
}

impl Default for NewRollWindow {
    fn default() -> Self {
        Self {
            id: String::new(),
            name: String::new(),
            desc: String::new(),
            date: Local::now().date_naive(),
            exps: 24,
            show_id_req_err: false,
        }
    }
}

impl NewRollWindow {
    pub fn draw(&mut self, ctx: &egui::Context, app_state: &mut AppState) -> bool {
        let mut close_unclicked = true;
        let mut close_window = false;
        Window::new("New Roll")
            .open(&mut close_unclicked)
            .show(ctx, |ui| {
                ui.horizontal(|ui| {
                    let label = ui.label("ID: ");
                    ui.text_edit_singleline(&mut self.id).labelled_by(label.id);
                });
                ui.horizontal(|ui| {
                    let label = ui.label("Name: ");
                    ui.text_edit_singleline(&mut self.name)
                        .labelled_by(label.id);
                });
                let desc_label = ui.label("Description: ");
                ui.text_edit_multiline(&mut self.desc)
                    .labelled_by(desc_label.id);
                ui.horizontal(|ui| {
                    let label = ui.label("Date: ");
                    ui.add(
                        DatePicker::new("new_roll_date", &mut self.date)
                            .sunday_first(true)
                            .highlight_weekend(false),
                    )
                    .labelled_by(label.id);
                });
                ui.horizontal(|ui| {
                    let label = ui.label("Num exposures: ");
                    ui.add(Slider::new(&mut self.exps, 1..=50).step_by(1.0))
                        .labelled_by(label.id);
                });
                if ui.button("Submit").clicked() {
                    if self.id.is_empty() {
                        self.show_id_req_err = true;
                    } else {
                        app_state.rolls.push(Roll::new(
                            self.id.clone(),
                            self.name.clone(),
                            self.desc.clone(),
                            self.date,
                            self.exps,
                        ));
                        close_window = true;
                    }
                }
                if self.show_id_req_err {
                    ui.colored_label(Color32::DARK_RED, "Error: ID required");
                }
            });
        !close_unclicked || close_window
    }
}