import { NextRequest, NextResponse } from 'next/server';
import { supabase } from '@/lib/supabase';
import { ensureAuthenticated, getAuthContext, hasProjectAccess } from '@/lib/access-control';

export async function GET(request: NextRequest) {
  const ctx = await getAuthContext(request);
  const auth = ensureAuthenticated(ctx);
  if (!auth.ok) {
    return NextResponse.json({ error: auth.error }, { status: auth.status });
  }

  const { searchParams } = new URL(request.url);
  const projectId = searchParams.get('project_id');

  let query = supabase
    .from('meetings')
    .select(`
      *,
      created_by_user:users!meetings_created_by_fkey(id, name, avatar_url),
      project:projects(id, name)
    `)
    .order('created_at', { ascending: false });

  if (!ctx!.isAdmin) {
    if (projectId) {
      if (!hasProjectAccess(ctx!, projectId)) {
        return NextResponse.json({ error: '无权限' }, { status: 403 });
      }
    } else {
      if (ctx!.accessibleProjectIds.length === 0) {
        return NextResponse.json([]);
      }
      query = query.in('project_id', ctx!.accessibleProjectIds);
    }
  }

  if (projectId) query = query.eq('project_id', projectId);

  const { data, error } = await query;

  if (error) {
    return NextResponse.json({ error: error.message }, { status: 500 });
  }

  return NextResponse.json(data);
}

export async function POST(request: NextRequest) {
  const ctx = await getAuthContext(request);
  const auth = ensureAuthenticated(ctx);
  if (!auth.ok) {
    return NextResponse.json({ error: auth.error }, { status: auth.status });
  }

  const body = await request.json();
  const { project_id, period_start, period_end, summary, decisions, risks, next_period_commitments, created_by } = body;

  if (!project_id || !period_start || !period_end || !summary) {
    return NextResponse.json(
      { error: '项目ID、周期开始日期、周期结束日期和总结为必填项' },
      { status: 400 }
    );
  }

  if (!ctx!.isAdmin && !hasProjectAccess(ctx!, project_id)) {
    return NextResponse.json({ error: '无权限' }, { status: 403 });
  }

  const { data, error } = await supabase
    .from('meetings')
    .insert({
      project_id,
      period_start,
      period_end,
      summary,
      decisions,
      risks,
      next_period_commitments,
      created_by: ctx!.isAdmin ? created_by : ctx!.user.id,
    })
    .select()
    .single();

  if (error) {
    return NextResponse.json({ error: error.message }, { status: 500 });
  }

  return NextResponse.json(data, { status: 201 });
}