const { createPool, listPools, updatePoolState } = require('../../services/pool/PoolService');

module.exports = {
  async create(req, res) {
    try {
      const { name, description, state } = req.body || {};
      const actorUserId = req.user && req.user.userId;
      if (!name) return res.status(400).json({ success: false, message: 'name is required' });
      if (state && !['active', 'inactive'].includes(state)) {
        return res.status(400).json({ success: false, message: 'Invalid state. Allowed: active, inactive' });
      }
      const pool = await createPool({ name, description, state, actorUserId });
      return res.status(201).json({ success: true, data: pool });
    } catch (e) {
      if (e && (e.code === 'ER_DUP_ENTRY' || e.errno === 1062)) {
        return res.status(409).json({ success: false, message: 'Pool name already exists' });
      }
      if (e && e.status === 400) {
        return res.status(400).json({ success: false, message: e.message });
      }
      console.error('[PoolController.create]', e);
      return res.status(500).json({ success: false, message: 'Internal server error' });
    }
  },

  async list(req, res) {
    try {
      console.debug('[PoolController.list] GET /api/admin/pools');
      const pools = await listPools();
      return res.status(200).json({ success: true, data: pools });
    } catch (e) {
      console.error('[PoolController.list] error', e);
      return res.status(500).json({ success: false, message: 'Internal server error' });
    }
  },

  // NEW: optional state update handler (route can be added later)
  async updateState(req, res) {
    try {
      const { id } = req.params || {};
      const { state } = req.body || {};
      const actorUserId = req.user && req.user.userId;
      if (!id) return res.status(400).json({ success: false, message: 'id is required' });
      if (!['active', 'inactive', 'archived'].includes(state)) {
        return res.status(400).json({ success: false, message: 'Invalid state. Allowed: active, inactive, archived' });
      }
      const updated = await updatePoolState(id, state, actorUserId);
      return res.status(200).json({ success: true, data: updated });
    } catch (e) {
      if (e && e.status === 400) {
        return res.status(400).json({ success: false, message: e.message });
      }
      console.error('[PoolController.updateState]', e);
      return res.status(500).json({ success: false, message: 'Internal server error' });
    }
  }
};