const Report = require('../models/Report');
const User = require('../models/User');

exports.createReport = async (req, res) => {
  try {
    const { reportId, phone, userName, data, link } = req.body;

    if (!reportId || !phone || !data) {
      return res.status(400).json({ success: false, message: 'Missing required fields' });
    }

    const report = await Report.create({
      reportId,
      phone,
      userName,
      data,
      link
    });

    res.status(201).json({ success: true, report });
  } catch (error) {
    console.error('Error creating report:', error);
    res.status(500).json({ success: false, message: 'Server error' });
  }
};

exports.getReport = async (req, res) => {
  try {
    const { reportId } = req.params;

    const report = await Report.findOne({ reportId });

    if (!report) {
      return res.status(404).json({ success: false, message: 'Report not found' });
    }

    // Return the report data directly to match frontend expectation
    res.json(report.data);
  } catch (error) {
    console.error('Error fetching report:', error);
    res.status(500).json({ success: false, message: 'Server error' });
  }
};

exports.savePdfReport = async (req, res) => {
  try {
    const { phone, userName } = req.body;
    
    if (!phone || !req.file) {
      return res.status(400).json({ success: false, message: 'Missing phone or PDF file' });
    }

    // Ensure user exists
    let user = await User.findOne({ phone });
    if (!user) {
      user = await User.create({ phone, name: userName || 'Unknown' });
    } else if (userName && userName !== user.name) {
      user.name = userName;
      await user.save();
    }

    const reportId = Math.random().toString(36).substring(7);
    const link = `/uploads/reports/${req.file.filename}`;

    const report = await Report.create({
      reportId,
      phone,
      userName: user.name,
      data: { message: "PDF Report generated." }, // Minimal data to satisfy schema
      link
    });

    res.status(201).json({ success: true, link, reportId });
  } catch (error) {
    console.error('Error saving PDF report:', error);
    res.status(500).json({ success: false, message: 'Server error' });
  }
};