"use client";

import { useState, useEffect } from "react";
import { useRouter } from "next/navigation";
import Link from "next/link";

export default function MapPage() {
  const [clues, setClues] = useState([]);
  const [loading, setLoading] = useState(true);
  const [error, setError] = useState(null);
  const [huntActive, setHuntActive] = useState(false);
  const router = useRouter();

  useEffect(() => {
    async function checkHuntStatus() {
      try {
        const response = await fetch("/api/hunt-status", {
          credentials: "include",
        });

        if (response.ok) {
          const data = await response.json();
          setHuntActive(data.active || false);

          // If hunt is not active, redirect to the home page
          if (!data.active) {
            router.push("/");
            return false;
          }
          return true;
        } else {
          console.error("Failed to check hunt status");
          return false;
        }
      } catch (err) {
        console.error("Error checking hunt status:", err);
        return false;
      }
    }

    async function fetchClues() {
      try {
        // First verify the hunt is active
        const huntIsActive = await checkHuntStatus();
        if (!huntIsActive) return;

        // Fetch the clues from the API with proper error handling
        const response = await fetch("/api/clues", {
          credentials: "include",
        });

        // Handle non-OK responses without throwing
        if (!response.ok) {
          const contentType = response.headers.get("content-type");
          if (contentType && contentType.includes("application/json")) {
            // If it's JSON, parse it for the error message
            const errorData = await response.json();
            throw new Error(errorData.error || "Failed to fetch clues");
          } else {
            // If it's not JSON, use the status text
            throw new Error(
              `Failed to fetch clues: ${response.status} ${response.statusText}`
            );
          }
        }

        // Parse the JSON response
        const data = await response.json();

        // If we got back an error field, show it as an error
        if (data.error) {
          throw new Error(data.error);
        }

        setClues(data.clues || []);
      } catch (err) {
        console.error("Error fetching clues:", err);
        setError(err.message);
      } finally {
        setLoading(false);
      }
    }

    fetchClues();
  }, [router]);

  // Generate random x positions and sort by descending y positions
  const generatePositions = (clues) => {
    const positions = [];
    const maxWidth = 800;
    const maxHeight = 500;
    const padding = 50;

    for (let i = 0; i < clues.length; i++) {
      positions.push({
        id: clues[i].id,
        title: clues[i].title || `Clue ${i + 1}`,
        x: Math.random() * (maxWidth - 2 * padding) + padding,
        y: (i + 1) * (maxHeight / (clues.length + 1)),
      });
    }

    return positions;
  };

  const cluePositions = clues.length > 0 ? generatePositions(clues) : [];

  if (loading) {
    return (
      <div className="map-container">
        <div className="loading">Loading clues...</div>
      </div>
    );
  }

  if (error) {
    return (
      <div className="map-container">
        <div className="error">Error: {error}</div>
        <button onClick={() => router.push("/")} className="back-button">
          Back to Home
        </button>
      </div>
    );
  }

  if (clues.length === 0) {
    return (
      <div className="map-container">
        <div className="no-clues">No clues available yet.</div>
        <button onClick={() => router.push("/")} className="back-button">
          Back to Home
        </button>
      </div>
    );
  }

  return (
    <div className="map-container">
      <h1>Treasure Map</h1>
      <div className="map-wrapper">
        <svg
          className="map-svg"
          viewBox="0 0 800 500"
          xmlns="http://www.w3.org/2000/svg"
        >
          {/* Map background with a treasure map style */}
          <rect width="800" height="500" fill="#f5e6ca" />
          <path
            d="M0,0 L800,0 L800,500 L0,500 Z"
            fill="none"
            stroke="#9c6b30"
            strokeWidth="10"
          />

          {/* Decorative map elements */}
          <path
            d="M100,100 Q400,50 700,150"
            stroke="#9c6b30"
            strokeWidth="2"
            fill="none"
            strokeDasharray="5,5"
          />
          <path
            d="M150,400 Q400,450 650,350"
            stroke="#9c6b30"
            strokeWidth="2"
            fill="none"
            strokeDasharray="5,5"
          />
          <path
            d="M300,100 Q350,250 300,400"
            stroke="#9c6b30"
            strokeWidth="2"
            fill="none"
            strokeDasharray="5,5"
          />
          <path
            d="M500,100 Q450,250 500,400"
            stroke="#9c6b30"
            strokeWidth="2"
            fill="none"
            strokeDasharray="5,5"
          />

          {/* Connection lines between clue points */}
          {cluePositions.slice(0, -1).map((clue, index) => (
            <line
              key={`line-${index}`}
              x1={clue.x}
              y1={clue.y}
              x2={cluePositions[index + 1].x}
              y2={cluePositions[index + 1].y}
              stroke="#9c6b30"
              strokeWidth="2"
              strokeDasharray="5,5"
            />
          ))}

          {/* Clue points */}
          {cluePositions.map((clue, index) => (
            <g key={`clue-${index}`} className="clue-point">
              <circle
                cx={clue.x}
                cy={clue.y}
                r="15"
                fill="#d4a76a"
                stroke="#9c6b30"
                strokeWidth="2"
                onClick={() => router.push(`/clue/${clue.id}`)}
                style={{ cursor: "pointer" }}
              />
              <text
                x={clue.x}
                y={clue.y}
                textAnchor="middle"
                dominantBaseline="central"
                fill="#5d4037"
                fontSize="12"
                fontWeight="bold"
              >
                {index + 1}
              </text>
            </g>
          ))}
        </svg>
      </div>

      {/* Clue list */}
      <div className="clue-list">
        <h2>Clues</h2>
        <ul>
          {cluePositions.map((clue, index) => (
            <li key={`clue-list-${index}`}>
              <Link href={`/clue/${clue.id}`}>
                {index + 1}. {clue.title}
              </Link>
            </li>
          ))}
        </ul>
      </div>

      <button onClick={() => router.push("/")} className="back-button">
        Back to Home
      </button>

      <style jsx>{`
        .map-container {
          padding: 20px;
          max-width: 1000px;
          margin: 0 auto;
          text-align: center;
        }

        h1 {
          color: #5d4037;
          margin-bottom: 20px;
          font-family: "Pirates", cursive, serif;
          font-size: 2.5rem;
        }

        .map-wrapper {
          position: relative;
          width: 100%;
          max-width: 800px;
          margin: 0 auto;
          border: 5px solid #9c6b30;
          border-radius: 10px;
          overflow: hidden;
          box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
          background: #f5e6ca;
        }

        .map-svg {
          width: 100%;
          height: auto;
          display: block;
        }

        .clue-list {
          margin-top: 30px;
          background: #f5e6ca;
          border: 2px solid #9c6b30;
          border-radius: 8px;
          padding: 15px;
          text-align: left;
        }

        .clue-list h2 {
          color: #5d4037;
          margin-top: 0;
        }

        ul {
          list-style-type: none;
          padding: 0;
        }

        li {
          margin: 10px 0;
          padding: 8px;
          border-bottom: 1px dashed #9c6b30;
        }

        li:last-child {
          border-bottom: none;
        }

        a {
          text-decoration: none;
          color: #5d4037;
          font-weight: bold;
          display: block;
          padding: 5px;
          transition: all 0.3s ease;
        }

        a:hover {
          background-color: rgba(156, 107, 48, 0.2);
          transform: translateX(5px);
        }

        .back-button {
          margin-top: 20px;
          padding: 10px 20px;
          background-color: #9c6b30;
          color: white;
          border: none;
          border-radius: 5px;
          cursor: pointer;
          font-size: 1rem;
          transition: background-color 0.3s;
        }

        .back-button:hover {
          background-color: #7d562a;
        }

        .loading,
        .error,
        .no-clues {
          padding: 50px;
          border: 2px dashed #9c6b30;
          border-radius: 8px;
          margin: 30px 0;
          color: #5d4037;
          background: #f5e6ca;
          font-size: 1.2rem;
        }

        .error {
          border-color: #d32f2f;
          color: #d32f2f;
        }
      `}</style>
    </div>
  );
}