use crate::border_panel::{INNER_BORDER, OUTER_BORDER, draw_border_panel};
use crate::row::Row;
use crate::{Currency, unlocks::UnlockSystem};
use servicepoint::{Bitmap, CharGrid, TILE_SIZE, WindowMut};
use std::time::Duration;

#[derive(Debug)]
pub struct Game {
    total_currency: Currency,
    unlocks: UnlockSystem,
    state: State,
}

#[derive(Debug)]
pub struct State {
    pub currency: Currency,
    pub speed: f64,
    pub productivity: f64,
    pub rows: Vec<Row>,
}

impl Game {
    const BAR_NAMES: [&'static str; 11] = [
        "Powering infrastructure",
        "Activating colorful lights",
        "Dimming darkroom",
        "Refilling Matemat",
        "Pre-heating convectiomat",
        "Resetting chair heights",
        "Untangling 'block chain'",
        "Refilling sticker box",
        "Setting room to public",
        "Welcoming creatures",
        "Making Discordia proud",
    ];

    pub fn new() -> Self {
        let bars = Self::BAR_NAMES
            .iter()
            .enumerate()
            .map(|(index, name)| {
                Row::new(
                    5usize.pow(index as u32) as f64,
                    1.0 * (0.5f64.powi(index as i32)),
                    name,
                )
            })
            .collect();
        let state = State {
            rows: bars,
            currency: 1f64,
            speed: 1f64,
            productivity: 1f64,
        };
        Self {
            total_currency: 0f64,
            unlocks: UnlockSystem::new(&state),
            state,
        }
    }

    pub fn progress(&mut self, delta: Duration) {
        let adjusted_delta = delta.mul_f64(self.state.speed);

        let extra_currency = self.state.productivity
            * self
                .state
                .rows
                .iter_mut()
                .map(|bar| bar.progress(adjusted_delta))
                .sum::<Currency>();
        self.state.currency += extra_currency;
        self.total_currency += extra_currency;
        self.unlocks.progress(&mut self.state);
    }

    pub fn draw(
        &self,
        mut text_layer: WindowMut<char, CharGrid>,
        mut pixel_layer: WindowMut<bool, Bitmap>,
    ) {
        let (mut text_layer, mut pixel_layer) = draw_border_panel(
            &mut text_layer,
            &mut pixel_layer,
            " Discordia Boot Procedure ",
            OUTER_BORDER,
        );

        let unlocks_height = 3 + 2;
        let (mut unlocks_text, bars_text) = text_layer.split_vertical_mut(unlocks_height).unwrap();
        let (mut unlocks_pixel, bars_pixel) = pixel_layer
            .split_vertical_mut(unlocks_height * TILE_SIZE)
            .unwrap();
        self.unlocks.draw(&mut unlocks_text, &mut unlocks_pixel);

        self.draw_bars(bars_text, bars_pixel);
    }

    fn draw_bars(
        &self,
        mut text_layer: WindowMut<char, CharGrid>,
        mut pixel_layer: WindowMut<bool, Bitmap>,
    ) {
        let (mut text_layer, mut pixel_layer) = draw_border_panel(
            &mut text_layer,
            &mut pixel_layer,
            " Processes ",
            INNER_BORDER,
        );

        for (index, row) in self.state.rows.iter().enumerate() {
            let mut bar_window = pixel_layer
                .window_mut(.., index * TILE_SIZE..index * TILE_SIZE + TILE_SIZE)
                .unwrap();
            let mut label_window = text_layer.window_mut(.., index..index + 1).unwrap();
            row.draw(&mut label_window, &mut bar_window);
        }
    }
}