import Phaser from "phaser";
import type { ClickerDefinition, ClickerUpgrade, ClickerProgress, GameResult } from "../types";

const COLORS = {
  bg: 0x14162a,
  target: 0x4f46e5,
  row: 0x23264a,
  rowOwned: 0x0d3d38,
  rowDisabled: 0x1a1c33,
};

interface UpgradeRow {
  bg: Phaser.GameObjects.Rectangle;
  label: Phaser.GameObjects.Text;
  upgrade: ClickerUpgrade;
  index: number;
}

export class ClickerScene extends Phaser.Scene {
  private definition!: ClickerDefinition;
  private onFinish?: (result: GameResult) => void;
  private onProgress?: (state: ClickerProgress) => void;
  private score = 0;
  private pointsPerClick = 1;
  private pointsPerSecond = 0;
  private ownedUpgrades = new Set<number>();
  private scoreText!: Phaser.GameObjects.Text;
  private upgradeRows: UpgradeRow[] = [];
  private finished = false;

  constructor() {
    super("ClickerScene");
  }

  create() {
    this.definition = this.registry.get("definition");
    this.onFinish = this.registry.get("onFinish");
    this.onProgress = this.registry.get("onProgress");

    const initialState = this.registry.get("initialState") as ClickerProgress | undefined;
    const validUpgradeIndices = (initialState?.ownedUpgradeIndices ?? []).filter(
      (i) => i >= 0 && i < this.definition.upgrades.length,
    );
    this.score = initialState?.score ?? 0;
    this.pointsPerClick = initialState?.pointsPerClick ?? this.definition.startingPointsPerClick;
    this.pointsPerSecond = initialState?.pointsPerSecond ?? 0;
    this.ownedUpgrades = new Set(validUpgradeIndices);
    this.upgradeRows = [];
    this.finished = false;

    this.cameras.main.setBackgroundColor(COLORS.bg);

    this.scoreText = this.add
      .text(480, 30, "", { fontFamily: "sans-serif", fontSize: "24px", color: "#eef0fb", align: "center" })
      .setOrigin(0.5, 0);

    const target = this.add.circle(480, 200, 90, COLORS.target).setInteractive({ useHandCursor: true });
    const targetLabel = this.add
      .text(480, 200, this.definition.targetLabel, { fontFamily: "sans-serif", fontSize: "20px", color: "#ffffff" })
      .setOrigin(0.5);

    target.on("pointerdown", () => {
      if (this.finished) return;
      this.score += this.pointsPerClick;
      this.tweens.add({ targets: [target, targetLabel], scale: 0.92, duration: 60, yoyo: true });
      this.refresh();
    });

    this.definition.upgrades.forEach((upgrade, index) => {
      const y = 340 + index * 54;
      const bg = this.add
        .rectangle(480, y, 700, 44, COLORS.row)
        .setStrokeStyle(1, 0x4f46e5)
        .setInteractive({ useHandCursor: true });
      const label = this.add
        .text(480, y, "", { fontFamily: "sans-serif", fontSize: "15px", color: "#eef0fb" })
        .setOrigin(0.5);
      bg.on("pointerdown", () => this.buyUpgrade(index));
      this.upgradeRows.push({ bg, label, upgrade, index });
    });

    this.time.addEvent({
      delay: 1000,
      loop: true,
      callback: () => {
        if (this.finished) return;
        this.score += this.pointsPerSecond;
        this.refresh();
      },
    });

    this.refresh();
  }

  private buyUpgrade(index: number) {
    if (this.finished || this.ownedUpgrades.has(index)) return;
    const upgrade = this.definition.upgrades[index];
    if (this.score < upgrade.cost) return;
    this.score -= upgrade.cost;
    this.pointsPerClick += upgrade.pointsPerClickBonus;
    this.pointsPerSecond += upgrade.pointsPerSecondBonus;
    this.ownedUpgrades.add(index);
    this.refresh();
  }

  private refresh() {
    this.onProgress?.({
      score: this.score,
      pointsPerClick: this.pointsPerClick,
      pointsPerSecond: this.pointsPerSecond,
      ownedUpgradeIndices: Array.from(this.ownedUpgrades),
    });

    this.scoreText.setText(
      `${Math.floor(this.score)} / ${this.definition.targetScore}\n+${this.pointsPerClick}/клик  +${this.pointsPerSecond}/сек`,
    );

    this.upgradeRows.forEach(({ bg, label, upgrade, index }) => {
      const owned = this.ownedUpgrades.has(index);
      const affordable = this.score >= upgrade.cost;
      label.setText(owned ? `${upgrade.name} — куплено` : `${upgrade.name} — ${upgrade.cost}`);
      bg.setFillStyle(owned ? COLORS.rowOwned : affordable ? COLORS.row : COLORS.rowDisabled);
      bg.disableInteractive();
      if (!owned && affordable) bg.setInteractive({ useHandCursor: true });
    });

    if (!this.finished && this.score >= this.definition.targetScore) {
      this.finished = true;
      this.onFinish?.({ won: true, score: Math.floor(this.score) });
    }
  }
}