//! The briscola deal-end summary screen.
//!
//! Shown when a deal finishes but the match continues: the points won in
//! the deal just played, the running totals toward the target and the
//! acknowledgement button (the server deals on when everyone is ready, or
//! after the hand-end timeout).
use sycamore::prelude::*;

use crate::components::card::{card_back, card_img};
use crate::model::{card_label, is_chiamata, is_individual_game, DealSummary, GameView};
use crate::ws::GameSocket;

/// Names of the two sides: the caller and partner for briscola chiamata,
/// the players' names for games without partnerships (classic two-player
/// briscola), "Team A"/"Team B" otherwise.
fn side_names(game: &GameView) -> (String, String) {
    if is_chiamata(&game.game_type) {
        game.chiamata_sides()
    } else if is_individual_game(&game.game_type) {
        (
            game.player_name_for_team("A"),
            game.player_name_for_team("B"),
        )
    } else {
        ("Team A".to_string(), "Team B".to_string())
    }
}

/// One explanatory row: icon, title, plain-language sentence, points chip.
fn summary_row(
    icon: View,
    title: &'static str,
    text: String,
    cls: &'static str,
    chip: String,
) -> View {
    view! {
        div(class=cls) {
            div(class="score-icon") { (icon) }
            div(class="score-body") {
                div(class="score-title") { (title) }
                div(class="score-text") { (text) }
            }
            div(class="score-points") { (chip) }
        }
    }
}

/// The scoring rows of one completed deal (also used by the final screen).
pub fn deal_rows(game: &GameView, summary: &DealSummary) -> View {
    let a = summary.points.a;
    let b = summary.points.b;
    let (name_a, name_b) = side_names(game);
    let cls = if summary.patta {
        "score-row tie"
    } else if a > b {
        "score-row team-a"
    } else {
        "score-row team-b"
    };
    let chip = if summary.patta {
        "patta".to_string()
    } else {
        format!("+{a} · +{b}")
    };
    let patta_note = summary.patta.then(|| view! {
        p(class="text-warning small mb-0") {
            "60–60: patta — the deal is replayed and its points do not count."
        }
    });
    let called_row = if is_chiamata(&game.game_type) {
        game.called_card.clone().map(|code| {
            let label = card_label(&code);
            let text = if game.solo {
                format!("{name_a} called {label} in hand and plays alone.")
            } else {
                format!("{label}: its holder is the secret partner; its suit is trump.")
            };
            summary_row(
                card_img(code, "score-mini"),
                "Chiamata",
                text,
                "score-row chiamata-row",
                label,
            )
        })
    } else {
        None
    };
    let points_row = summary_row(
        card_img("01D".to_string(), "score-mini"),
        "Deal points",
        format!("{name_a} {a} · {name_b} {b}"),
        cls,
        chip,
    );
    let cards = summary.cards.map(|c| {
        summary_row(
            card_back("score-mini"),
            "Cards captured",
            format!("{name_a} {} · {name_b} {}", c.a, c.b),
            "score-row",
            format!("{} · {}", c.a, c.b),
        )
    });
    view! {
        div(class="score-rows") {
            (called_row)
            (points_row)
            (patta_note)
            (cards)
        }
    }
}

/// Running totals with progress toward the target, including the points
/// gained in the deal just played (zero for a patta).
fn totals(game: &GameView, summary: &DealSummary) -> View {
    // Briscola chiamata plays a single deal: there is no running total.
    let Some(running) = summary.totals else {
        return view! {};
    };
    let target = game.target_score.max(1);
    let pct_a = (100 * running.a / target).min(100);
    let pct_b = (100 * running.b / target).min(100);
    let (gained_a, gained_b) = if summary.patta {
        (0, 0)
    } else {
        (summary.points.a, summary.points.b)
    };
    let (name_a, name_b) = side_names(game);
    view! {
        div(class="totals") {
            div(class="total-row team-a") {
                span(class="total-label") { (name_a) }
                div(class="progress") {
                    div(class="progress-fill", style=format!("width: {pct_a}%")) {}
                }
                span(class="total-value") {
                    (running.a) " / " (target)
                    span(class="gained") { "+" (gained_a) }
                }
            }
            div(class="total-row team-b") {
                span(class="total-label") { (name_b) }
                div(class="progress") {
                    div(class="progress-fill", style=format!("width: {pct_b}%")) {}
                }
                span(class="total-value") {
                    (running.b) " / " (target)
                    span(class="gained") { "+" (gained_b) }
                }
            }
        }
    }
}

/// The full deal-end modal: points + totals + acknowledgement button.
pub fn deal_summary_modal(
    game: GameView,
    socket: Signal<Option<GameSocket>>,
    now: Signal<f64>,
) -> View {
    let Some(summary) = game.last_deal.clone() else {
        return view! {};
    };
    let viewer_seat = game
        .players
        .iter()
        .find(|p| p.hand.is_some())
        .map(|p| p.seat);
    let acked = game.acknowledged.clone();
    let already_acked = viewer_seat.is_some_and(|s| acked.contains(&s));
    let waiting: Vec<String> = game
        .players
        .iter()
        .filter(|p| !acked.contains(&p.seat))
        .map(|p| p.name.clone())
        .collect();
    let countdown = game.hand_end_deadline.as_ref().map(|deadline| {
        // A dynamic closure so only the ticking number re-renders, not the
        // whole modal (which would swap DOM nodes under the user's cursor).
        let deadline_ms = js_sys::Date::parse(deadline);
        view! {
            p(class="text-secondary small") {
                "Auto-continuing in "
                (move || {
                    ((deadline_ms - now.get_clone()) / 1000.0).ceil().max(0.0) as i32
                })
                "s"
            }
        }
    });

    let title = format!("Deal {} — results", summary.deal);
    let rows = deal_rows(&game, &summary);
    let totals_view = totals(&game, &summary);

    let action = if game.spectator {
        // Spectators cannot acknowledge; they just watch the summary.
        view! {
            p(class="text-secondary small mb-0") {
                "Spectating — the next deal is dealt when every player is ready."
            }
        }
    } else if already_acked {
        let waiting_text = format!("Waiting for {}…", waiting.join(", "));
        view! {
            button(class="btn btn-warning", disabled=true) { (waiting_text) }
        }
    } else {
        view! {
            button(class="btn btn-warning", on:click=move |_| {
                if let Some(s) = socket.get_clone() {
                    s.ack();
                }
            }) { "Understood, next deal" }
        }
    };

    view! {
        div(class="overlay") {
            div(class="picker summary-panel") {
                h2 { (title) }
                (rows)
                (totals_view)
                div(class="summary-actions") { (action) }
                (countdown)
            }
        }
    }
}