class_name StatsScreen
extends Control
## Statistik: Kämpfe, Tagesaufgabe, Bestenliste, beste Karten und CSV-Export.

var app
var export_label: Label


func _ready() -> void:
    var p: Profile = app.profile
    var col := Style.column(self, 900, 12, 4)
    Style.clabel(col, "Statistik", 32, Style.GOLD, "center", true)
    var st: Dictionary = p.stats
    Style.clabel(col, "Kämpfe %d · Siege %d · Booster %d · Kampagne %d/%d" % [
        st.games, st.wins, st.boosters, p.campaign_stage, Campaign.total()], 16, Style.MUTED)
    var task := p.daily_task()
    var daily_text: String = ("Tagesaufgabe erledigt: %s ✓" % task.text) if p.daily.done else \
        "Tagesaufgabe: %s (%d/%d) · +%d Münzen" % [task.text, p.daily.progress, task.goal, task.reward]
    Style.clabel(col, daily_text, 16, Style.BLUE)
    Style.clabel(col, "Serie: %d (beste %d) · Schnellster Sieg: %s" % [p.records.streak, p.records.best_streak,
        ("%d Züge" % p.records.fastest_win) if p.records.fastest_win > 0 else "–"], 15, Style.MUTED)
    Style.spacer(col, 4)
    var top := p.top_cards(5)
    if not top.is_empty():
        Style.spacer(col, 4)
        var parts: Array[String] = []
        for row in top:
            parts.append("%s %d/%d" % [row.card.name, row.wins, row.games])
        Style.clabel(col, "Beste Karten (Siege/Partien): " + "  ·  ".join(parts), 14, Style.MUTED)
    export_label = Style.clabel(col, "", 13, Style.GREEN)
    Style.spacer(col, 2)
    var br := Style.row(col, 16)
    br.alignment = BoxContainer.ALIGNMENT_CENTER
    Style.cbutton(br, "Statistik exportieren", Vector2(220, 40), export_stats)
    Style.cbutton(br, "Zurück", Vector2(160, 40), func(): app.show_screen(MenuScreen.new()))


func export_stats() -> void:
    var path := "user://statistik.csv"
    var err: String = app.profile.export_stats(path)
    export_label.text = ("Gespeichert: " + ProjectSettings.globalize_path(path)) if err == "" else err


func _input(event: InputEvent) -> void:
    if event.is_action_pressed("ui_cancel"):
        app.show_screen(MenuScreen.new())