// Package miot provides MIoT core client for Xiaomi Home devices.
// It's a Golang port of MIoTClient from xiaomihome-py/miot/.
package miot

import (
	"fmt"
)

// ============================================================================
// Cloud API calls (aligned with Python miot_client.py)
// ============================================================================

// SetProp sets a device property via cloud API.
// Aligns with Python: set_prop_async.
// did: device ID
// siid: service IID
// piid: property IID
// value: property value
// Returns: error if failed.
func (c *MIoTClient) SetProp(did string, siid, piid int, value interface{}) error {
	if c.http == nil {
		return fmt.Errorf("HTTP client not available")
	}

	params := []PropParam{
		{DID: did, Siid: siid, Piid: piid, Value: value},
	}

	results, err := c.http.SetProp(params)
	if err != nil {
		return err
	}

	// Aligns with Python: 空 result 视为失败（Python 会 raise device_exec_error）
	if len(results) == 0 {
		return fmt.Errorf("set property failed: empty result (device may be offline)")
	}

	// code=0 或 code=1 均视为成功（0=读取成功，1=设置成功）
	if results[0].Code != 0 && results[0].Code != 1 {
		// 设备移除或离线：刷新设备列表（Aligns with Python）
		if results[0].Code == -704010000 || results[0].Code == -704042011 {
			c.lgr.Errorf("[MIoTClient] device may be removed or offline, %s\n", did)
			if devs, rerr := c.http.GetDevices(nil); rerr == nil {
				c.deviceListMu.Lock()
				for k := range c.deviceListCloud {
					if _, ok := devs[k]; !ok {
						delete(c.deviceListCloud, k)
					}
				}
				c.deviceListMu.Unlock()
			}
		}
		return fmt.Errorf("set property failed, code=%d", results[0].Code)
	}

	c.lgr.Infof("[MIoTClient] SetProp: %s/%d/%d = %v\n", did, siid, piid, value)
	return nil
}

// GetProp gets a device property via cloud API.
// Aligns with Python: get_prop_async.
// did: device ID
// siid: service IID
// piid: property IID
// Returns: property value and error.
func (c *MIoTClient) GetProp(did string, siid, piid int) (interface{}, error) {
	if c.http == nil {
		return nil, fmt.Errorf("HTTP client not available")
	}

	params := []PropParam{
		{DID: did, Siid: siid, Piid: piid},
	}

	results, err := c.http.GetProps(params)
	if err != nil {
		return nil, err
	}

	if len(results) == 0 {
		return nil, fmt.Errorf("no result for property %d.%d", siid, piid)
	}

	if results[0].Code != 0 {
		return nil, fmt.Errorf("get property failed, code=%d", results[0].Code)
	}

	c.lgr.Infof("[MIoTClient] GetProp: %s/%d/%d = %v\n", did, siid, piid, results[0].Value)
	return results[0].Value, nil
}

// Action executes a device action via cloud API.
// Aligns with Python: action_async.
// did: device ID
// siid: service IID
// aiid: action IID
// inList: input parameters
// Returns: action result and error.
func (c *MIoTClient) Action(did string, siid, aiid int, inList []interface{}) (map[string]interface{}, error) {
	if c.http == nil {
		return nil, fmt.Errorf("HTTP client not available")
	}

	result, err := c.http.DoAction(did, siid, aiid, inList)
	if err != nil {
		return nil, err
	}

	c.lgr.Infof("[MIoTClient] Action: %s/%d/%d, result=%v\n", did, siid, aiid, result)
	return result, nil
}

// ============================================================================
// Batch operations (aligned with Python miot_client.py)
// ============================================================================

// SetProps sets multiple device properties in batch.
// Aligns with Python: set_props_async.
// params: slice of PropParam
// Returns: slice of PropResult and error.
func (c *MIoTClient) SetProps(params []PropParam) ([]PropResult, error) {
	if c.http == nil {
		return nil, fmt.Errorf("HTTP client not available")
	}

	return c.http.SetProp(params)
}

// GetProps gets multiple device properties in batch.
// Aligns with Python: get_props_async.
// params: slice of PropParam
// Returns: slice of PropResult and error.
func (c *MIoTClient) GetProps(params []PropParam) ([]PropResult, error) {
	if c.http == nil {
		return nil, fmt.Errorf("HTTP client not available")
	}

	return c.http.GetProps(params)
}