"use client";

import { useState, useEffect, useCallback } from "react";
import { Planet, Starship } from "@/types/swapi";
import { fetchPlanets, fetchStarships } from "@/services/swapi";
import { LogEntry } from "@/components/EventLog";
import { t } from "@/content/locales";

export function useGameEngine() {
  const [planets, setPlanets] = useState<Planet[]>([]);
  const [starships, setStarships] = useState<Starship[]>([]);
  const [loading, setLoading] = useState<boolean>(true);

  const [gameStarted, setGameStarted] = useState(false);
  const [isGameOver, setIsGameOver] = useState(false);
  const [credits, setCredits] = useState<number>(100);
  const [hp, setHp] = useState<number>(10);
  const [currentLocationId, setCurrentLocationId] = useState<string>("");
  const [selectedPlanet, setSelectedPlanet] = useState<Planet | null>(null);
  const [isJumping, setIsJumping] = useState<boolean>(false);
  const [activeEnemy, setActiveEnemy] = useState<Starship | null>(null);
  const [logs, setLogs] = useState<LogEntry[]>([]);

  const addLog = useCallback(
    (message: string, type: LogEntry["type"] = "info") => {
      const newLog: LogEntry = {
        id: Math.random().toString(36).substring(2, 9),
        message,
        type,
        timestamp: new Date().toLocaleTimeString([], {
          hour: "2-digit",
          minute: "2-digit",
        }),
      };
      setLogs((prev) => [...prev, newLog]);
    },
    [],
  );

  useEffect(() => {
    async function initGame() {
      try {
        const [planets, ships] = await Promise.all([
          fetchPlanets(),
          fetchStarships(),
        ]);
        setPlanets(planets);
        setStarships(ships);
        if (planets.length > 0) setCurrentLocationId(planets[0].id);
        addLog(t.ENGINE.BOOT.SUCCESS, "success");
      } catch (error) {
        addLog(t.ENGINE.BOOT.ERROR, "danger");
      } finally {
        setLoading(false);
      }
    }
    initGame();
  }, [addLog]);

  const startGame = () => {
    setGameStarted(true);
    addLog(t.ENGINE.BOOT.WELCOME, "info");
  };

  const executeJump = async () => {
    if (!selectedPlanet || selectedPlanet.id === currentLocationId) return;

    setIsJumping(true);
    addLog(
      `${t.ENGINE.JUMP.INIT(selectedPlanet.name)} ${t.ENGINE.DICE.ROLLING_1W6}`,
      "info",
    );

    setTimeout(() => {
      const roll = Math.floor(Math.random() * 6) + 1;
      const rollInfo = t.ENGINE.DICE.RESULT_1W6(roll);

      if (roll >= 5) {
        const randomShip =
          starships[Math.floor(Math.random() * starships.length)];
        setActiveEnemy(randomShip);
        addLog(
          `${rollInfo} ${t.ENGINE.JUMP.INTERCEPTION(randomShip.name)}`,
          "danger",
        );
      } else {
        const reward = 150;
        setCredits((prev) => prev + reward);
        setCurrentLocationId(selectedPlanet.id);
        addLog(
          `${rollInfo} ${t.ENGINE.JUMP.SUCCESS(selectedPlanet.name, reward)}`,
          "success",
        );
      }
      setIsJumping(false);
      setSelectedPlanet(null);
    }, 1200);
  };

  const executeEscape = () => {
    if (!activeEnemy) return;
    addLog(`${t.ENGINE.ESCAPE.INIT} ${t.ENGINE.DICE.ROLLING_1W6}`, "info");

    setTimeout(() => {
      const roll = Math.floor(Math.random() * 6) + 1;
      const rollInfo = t.ENGINE.DICE.RESULT_1W6(roll);

      if (roll <= 2) {
        const damage = 1;
        setHp((prev) => Math.max(0, prev - damage));
        addLog(
          `${rollInfo} ${t.ENGINE.ESCAPE.FAIL(activeEnemy.name, damage)}`,
          "danger",
        );
      } else {
        setActiveEnemy(null);
        addLog(`${rollInfo} ${t.ENGINE.ESCAPE.SUCCESS}`, "success");
      }
    }, 800);
  };

  const handleAttack = () => {
    if (!activeEnemy) return;
    addLog(
      `${t.ENGINE.COMBAT.INIT(activeEnemy.name)} ${t.ENGINE.DICE.ROLLING_2W6}`,
      "info",
    );

    setTimeout(() => {
      const d1 = Math.floor(Math.random() * 6) + 1;
      const d2 = Math.floor(Math.random() * 6) + 1;
      const total = d1 + d2;
      const rollInfo = t.ENGINE.DICE.RESULT_2W6(d1, d2, total);

      if (total >= activeEnemy.ds) {
        const loot = 300;
        setCredits((prev) => prev + loot);
        setActiveEnemy(null);
        addLog(
          `${rollInfo} ${t.ENGINE.COMBAT.VICTORY(activeEnemy.name, loot)}`,
          "success",
        );
      } else {
        const diff = activeEnemy.ds - total;
        setHp((prev) => Math.max(0, prev - diff));
        addLog(
          `${rollInfo} ${t.ENGINE.COMBAT.COUNTER(activeEnemy.name, diff)}`,
          "danger",
        );
      }
    }, 1000);
  };

  useEffect(() => {
    if (hp <= 0 && !isGameOver) {
      setIsGameOver(true);
      addLog(t.ENGINE.SYSTEMS.CRITICAL_FAILURE, "danger");
    }
  }, [hp, isGameOver, addLog]);

  const restartGame = () => {
    setHp(10);
    setCredits(100);
    setIsGameOver(false);
    setActiveEnemy(null);
    setSelectedPlanet(null);
    setLogs([]);
    addLog(t.ENGINE.BOOT.RESTART, "success");
  };

  return {
    planets,
    starships,
    loading,
    gameStarted,
    startGame,
    credits,
    hp,
    currentLocationId,
    selectedPlanet,
    setSelectedPlanet,
    executeEscape,
    executeJump,
    handleAttack,
    isJumping,
    activeEnemy,
    logs,
    isGameOver,
    restartGame,
  };
}