'use client';

import React, { useEffect, useState } from 'react';
import styled from 'styled-components';
import { API_URL } from '@/lib/config';

const Grid = styled.div`
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 16px;
`;

const Card = styled.a`
  display: block;
  background: var(--bg-surface);
  border: 1px solid var(--border-color);
  border-radius: 10px;
  padding: 18px 20px;
  text-decoration: none;
  transition: transform 0.15s, border-color 0.15s;

  &:hover {
    transform: translateY(-2px);
    border-color: rgba(88,166,255,0.3);
  }
`;

const RepoName = styled.div`
  font-size: 14px;
  font-weight: 700;
  color: #58A6FF;
  margin-bottom: 6px;
`;

const RepoDesc = styled.div`
  font-size: 12px;
  color: var(--text-secondary);
  margin-bottom: 12px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
`;

const Stats = styled.div`
  display: flex;
  gap: 14px;
`;

const Stat = styled.span`
  font-size: 12px;
  color: var(--text-secondary);
`;

const PRBadge = styled.span<{ $count: number }>`
  font-size: 11px;
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 600;
  background: ${({ $count }) => $count > 0 ? 'rgba(88,166,255,0.12)' : 'rgba(139,148,158,0.08)'};
  color: ${({ $count }) => $count > 0 ? '#58A6FF' : 'var(--text-secondary)'};
`;

const NoProjects = styled.div`
  padding: 32px;
  text-align: center;
  color: var(--text-secondary);
  font-size: 13px;
`;

export default function ReposPage() {
  const [projects, setProjects] = useState<any[]>([]);
  const [loading, setLoading] = useState(true);

  useEffect(() => {
    fetch(`${API_URL}/api/projects`)
      .then((r) => r.json())
      .then(setProjects)
      .catch(() => {})
      .finally(() => setLoading(false));
  }, []);

  if (loading) return <div style={{ color: 'var(--text-secondary)', fontSize: '14px' }}>로딩 중...</div>;

  if (!projects.length) return <NoProjects>등록된 프로젝트 없음</NoProjects>;

  return (
    <Grid>
      {projects.map((p) => (
        <Card key={p.id} href={p.repoUrl} target="_blank" rel="noopener">
          <RepoName>📁 {p.name}</RepoName>
          {p.description && <RepoDesc>{p.description}</RepoDesc>}
          <Stats>
            <PRBadge $count={p.openPRs}>PR {p.openPRs}</PRBadge>
            <Stat>Sprint {p.sprintCount}개</Stat>
            <Stat>진행률 {p.progress}%</Stat>
          </Stats>
        </Card>
      ))}
    </Grid>
  );
}