const { supabase } = require('../config/supabase');

// POST: device_list
exports.list = async (req, res) => {
  const { user_name, token, first = 0, last = 100 } = req.body;

  try {
    const { data, error, count } = await supabase
      .from('devices')
      .select('*', { count: 'exact' })
      .range(parseInt(first), parseInt(last) - 1)
      .order('device_id', { ascending: true });

    if (error) throw error;

    return res.json({
      devices: data,
      total: count
    });
  } catch (error) {
    return res.status(500).json({ error: error.message });
  }
};

// POST: device_list_4_gui
exports.listForGui = async (req, res) => {
  // Same as list but may have different formatting
  return exports.list(req, res);
};

// POST: device_list_by_deployment
exports.listByDeployment = async (req, res) => {
  const { user_name, token, deployment_id, first = 0, last = 100 } = req.body;

  try {
    const { data, error } = await supabase
      .from('devices')
      .select('*')
      .eq('deployment_id', deployment_id)
      .range(parseInt(first), parseInt(last) - 1)
      .order('device_id', { ascending: true });

    if (error) throw error;
    return res.json(data);
  } catch (error) {
    return res.status(500).json({ error: error.message });
  }
};

// POST: get_device
exports.get = async (req, res) => {
  const { user_name, token, device_id, mac } = req.body;

  try {
    let query = supabase.from('devices').select('*');

    if (device_id) {
      query = query.eq('device_id', device_id);
    } else if (mac) {
      query = query.eq('mac', mac);
    }

    const { data, error } = await query.single();

    if (error) throw error;
    return res.json(data);
  } catch (error) {
    return res.status(404).json({ error: 'Device not found' });
  }
};

// POST: device_form - create/update device
exports.form = async (req, res) => {
  const {
    user_name, token,
    well_id, device_mac, description, location, close_to,
    radar_threshold, temperature_calib, humidity_calib, group
  } = req.body;

  try {
    const deviceData = {
      well_id,
      mac: device_mac,
      description,
      location,
      close_to,
      radar_threshold: parseFloat(radar_threshold) || null,
      temperature_calib: parseFloat(temperature_calib) || null,
      humidity_calib: parseFloat(humidity_calib) || null,
      group_id: parseInt(group) || null,
      time_edit: Date.now() / 1000
    };

    // Upsert by MAC address
    const { data, error } = await supabase
      .from('devices')
      .upsert(deviceData, { onConflict: 'mac' })
      .select()
      .single();

    if (error) throw error;
    return res.json({ success: true, device: data });
  } catch (error) {
    return res.status(500).json({ error: error.message });
  }
};

// POST: device_set_group
exports.setGroup = async (req, res) => {
  const { user_name, token, device_id, group_id } = req.body;

  try {
    const { error } = await supabase
      .from('devices')
      .update({ group_id: parseInt(group_id) })
      .eq('device_id', device_id);

    if (error) throw error;
    return res.json({ success: true });
  } catch (error) {
    return res.status(500).json({ error: error.message });
  }
};

// POST: device_get_live
exports.getLive = async (req, res) => {
  const { user_name, token, device_id, mac } = req.body;

  // TODO: Implement live data fetching from device
  return res.json({
    success: true,
    live_data: null,
    message: 'Live data not available'
  });
};

// POST: device_reboot
exports.reboot = async (req, res) => {
  const { user_name, token, device_id, mac } = req.body;

  // TODO: Implement device reboot command
  return res.json({
    success: true,
    message: 'Reboot command sent'
  });
};

// POST: device_set_well_id
exports.setWellId = async (req, res) => {
  const { user_name, token, device_id, well_id, mac } = req.body;

  try {
    let query = supabase.from('devices').update({ well_id });

    if (device_id) {
      query = query.eq('device_id', device_id);
    } else if (mac) {
      query = query.eq('mac', mac);
    }

    const { error } = await query;

    if (error) throw error;
    return res.json({ success: true });
  } catch (error) {
    return res.status(500).json({ error: error.message });
  }
};

// POST: device_set_network_id
exports.setNetworkId = async (req, res) => {
  const { user_name, token, device_id, well_id } = req.body;

  try {
    const { error } = await supabase
      .from('devices')
      .update({ network_id: well_id })
      .eq('device_id', device_id);

    if (error) throw error;
    return res.json({ success: true });
  } catch (error) {
    return res.status(500).json({ error: error.message });
  }
};

// POST: request_devices
exports.requestDevices = async (req, res) => {
  const { user_name, token, group_id, deployment_id, location, fresh } = req.body;

  try {
    let query = supabase.from('devices').select('*');

    if (deployment_id) {
      query = query.eq('deployment_id', deployment_id);
    }
    if (group_id) {
      query = query.eq('group_id', group_id);
    }
    if (location) {
      query = query.eq('location', location);
    }

    const { data, error } = await query;

    if (error) throw error;
    return res.json(data);
  } catch (error) {
    return res.status(500).json({ error: error.message });
  }
};

// POST: get_devices_locations
exports.getLocations = async (req, res) => {
  const { user_name, token, well_ids } = req.body;

  try {
    const ids = well_ids.split(',').map(id => id.trim());

    const { data, error } = await supabase
      .from('devices')
      .select('device_id, well_id, location, lat, lng')
      .in('well_id', ids);

    if (error) throw error;
    return res.json(data);
  } catch (error) {
    return res.status(500).json({ error: error.message });
  }
};