package iotcontrol

import (
	"context"
	"fmt"

	"git.yeij.top/AskaEth/Cyrene-Plugins/sdk"
)

// IoTController extends IoTClient with control operations.
type IoTController interface {
	GetDevice(ctx context.Context, deviceID string) (*sdk.IoTDeviceState, error)
	SetDeviceProperty(ctx context.Context, deviceID, property string, value interface{}) error
	ToggleDevice(ctx context.Context, deviceID string) (*sdk.IoTDeviceState, error)
}

type IoTControlPlugin struct {
	sdk.BasePlugin
	iotClient IoTController
}

func NewIoTControlPlugin(client IoTController) *IoTControlPlugin {
	return &IoTControlPlugin{iotClient: client}
}

func (p *IoTControlPlugin) Metadata() sdk.PluginMetadata {
	return sdk.PluginMetadata{
		Name: "iot_control", DisplayName: "IoT Device Control", Version: "1.0.0",
		Description: "Control smart home devices: toggle, set temperature/brightness/mode/color",
		Category: "iot", Author: sdk.PluginAuthor{Name: "Cyrene Team"},
	}
}

func (p *IoTControlPlugin) Tools() []sdk.Tool {
	return []sdk.Tool{&IoTControlTool{iotClient: p.iotClient}}
}

type IoTControlTool struct {
	sdk.BaseTool
	iotClient IoTController
}

func (t *IoTControlTool) Definition() sdk.ToolDefinition {
	return sdk.ToolDefinition{
		ID: "iot_control", Name: "iot_control", DisplayName: "IoT Device Control",
		Description: "Control smart home devices. Supports toggle, turn_on, turn_off, set_temperature, set_brightness, set_position, set_mode, set_color.",
		Category: "iot", Complexity: sdk.ComplexitySimple,
		DangerLevel: "medium",
		Parameters: map[string]interface{}{
			"type": "object",
			"properties": map[string]interface{}{
				"device_id": map[string]interface{}{"type": "string"},
				"action":    map[string]interface{}{"type": "string", "enum": []string{"toggle", "turn_on", "turn_off", "set_temperature", "set_brightness", "set_position", "set_mode", "set_color"}},
				"value":     map[string]interface{}{},
			},
			"required": []string{"device_id", "action"},
		},
	}
}

func (t *IoTControlTool) Validate(args map[string]interface{}) error {
	for _, k := range []string{"device_id", "action"} {
		if _, ok := args[k]; !ok {
			return fmt.Errorf("missing required parameter: %s", k)
		}
	}
	return nil
}

func (t *IoTControlTool) Execute(ctx context.Context, args map[string]interface{}) (*sdk.ToolResult, error) {
	if t.iotClient == nil {
		return &sdk.ToolResult{ToolName: "iot_control", Success: false, Error: "IoT client not configured"}, nil
	}

	deviceID, _ := args["device_id"].(string)
	if deviceID == "" {
		deviceID, _ = args["entity_id"].(string)
	}
	action := normalizeAction(args)

	switch action {
	case "turn_on", "turn_off":
		status := "on"
		if action == "turn_off" {
			status = "off"
		}
		if err := t.iotClient.SetDeviceProperty(ctx, deviceID, "status", status); err != nil {
			return &sdk.ToolResult{ToolName: "iot_control", Success: false, Error: err.Error()}, nil
		}
		return &sdk.ToolResult{ToolName: "iot_control", Success: true,
			Output: fmt.Sprintf("Device %s turned %s", deviceID, status)}, nil

	case "set_temperature":
		value := toFloat64(args["value"])
		old := ""
		if dev, err := t.iotClient.GetDevice(ctx, deviceID); err == nil {
			old = fmt.Sprintf(" (was %.1fC)", dev.Temperature)
		}
		if err := t.iotClient.SetDeviceProperty(ctx, deviceID, "temperature", value); err != nil {
			return &sdk.ToolResult{ToolName: "iot_control", Success: false, Error: err.Error()}, nil
		}
		return &sdk.ToolResult{ToolName: "iot_control", Success: true,
			Output: fmt.Sprintf("Temperature set to %.1fC%s", value, old)}, nil

	case "set_brightness":
		value := toFloat64(args["value"])
		if err := t.iotClient.SetDeviceProperty(ctx, deviceID, "brightness", value); err != nil {
			return &sdk.ToolResult{ToolName: "iot_control", Success: false, Error: err.Error()}, nil
		}
		return &sdk.ToolResult{ToolName: "iot_control", Success: true,
			Output: fmt.Sprintf("Brightness set to %.0f%%", value)}, nil

	case "set_position":
		value := toFloat64(args["value"])
		if err := t.iotClient.SetDeviceProperty(ctx, deviceID, "position", value); err != nil {
			return &sdk.ToolResult{ToolName: "iot_control", Success: false, Error: err.Error()}, nil
		}
		return &sdk.ToolResult{ToolName: "iot_control", Success: true,
			Output: fmt.Sprintf("Position set to %.0f%%", value)}, nil

	case "set_mode":
		value, _ := args["value"].(string)
		if err := t.iotClient.SetDeviceProperty(ctx, deviceID, "mode", value); err != nil {
			return &sdk.ToolResult{ToolName: "iot_control", Success: false, Error: err.Error()}, nil
		}
		return &sdk.ToolResult{ToolName: "iot_control", Success: true,
			Output: fmt.Sprintf("Mode set to %s", value)}, nil

	case "set_color":
		value, _ := args["value"].(string)
		if err := t.iotClient.SetDeviceProperty(ctx, deviceID, "color", value); err != nil {
			return &sdk.ToolResult{ToolName: "iot_control", Success: false, Error: err.Error()}, nil
		}
		return &sdk.ToolResult{ToolName: "iot_control", Success: true,
			Output: fmt.Sprintf("Color set to %s", value)}, nil

	case "toggle":
		dev, err := t.iotClient.ToggleDevice(ctx, deviceID)
		if err != nil {
			return &sdk.ToolResult{ToolName: "iot_control", Success: false, Error: err.Error()}, nil
		}
		return &sdk.ToolResult{ToolName: "iot_control", Success: true,
			Output: fmt.Sprintf("Device %s toggled to %s", deviceID, dev.Status)}, nil

	default:
		return &sdk.ToolResult{ToolName: "iot_control", Success: false,
			Error: fmt.Sprintf("unknown action: %s", action)}, nil
	}
}

func normalizeAction(args map[string]interface{}) string {
	action, _ := args["action"].(string)
	// Chinese aliases
	switch action {
	case "打开":
		return "turn_on"
	case "关闭", "关掉", "关上":
		return "turn_off"
	case "设置温度", "调温度":
		return "set_temperature"
	case "设置亮度", "调亮度":
		return "set_brightness"
	case "设置位置":
		return "set_position"
	case "设置模式":
		return "set_mode"
	case "设置颜色":
		return "set_color"
	case "开关", "切换":
		return "toggle"
	}
	return action
}

func toFloat64(v interface{}) float64 {
	switch n := v.(type) {
	case float64:
		return n
	case int:
		return float64(n)
	case int64:
		return float64(n)
	case string:
		var f float64
		fmt.Sscanf(n, "%f", &f)
		return f
	}
	return 0
}