package iotquery

import (
	"context"
	"fmt"

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

// IoTClient is the interface for IoT device access.
type IoTClient interface {
	GetAllDevices(ctx context.Context) ([]sdk.IoTDeviceState, error)
	GetDevice(ctx context.Context, deviceID string) (*sdk.IoTDeviceState, error)
}

type IoTQueryPlugin struct {
	sdk.BasePlugin
	iotClient IoTClient
}

func NewIoTQueryPlugin(client IoTClient) *IoTQueryPlugin {
	return &IoTQueryPlugin{iotClient: client}
}

func (p *IoTQueryPlugin) Metadata() sdk.PluginMetadata {
	return sdk.PluginMetadata{
		Name: "iot_query", DisplayName: "IoT Device Query", Version: "1.0.0",
		Description: "Query smart home device status (single device or all devices)",
		Category: "iot", Author: sdk.PluginAuthor{Name: "Cyrene Team"},
	}
}

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

type IoTQueryTool struct {
	sdk.BaseTool
	iotClient IoTClient
}

func (t *IoTQueryTool) Definition() sdk.ToolDefinition {
	return sdk.ToolDefinition{
		ID: "iot_query", Name: "iot_query", DisplayName: "IoT Device Query",
		Description: "Query smart home device status. Device status is typically auto-injected; use this only when status is stale.",
		Category: "iot", Complexity: sdk.ComplexitySimple,
		Parameters: map[string]interface{}{
			"type": "object",
			"properties": map[string]interface{}{"device_id": map[string]interface{}{"type": "string"}},
		},
	}
}

func (t *IoTQueryTool) Validate(args map[string]interface{}) error { return nil }

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

	deviceID, _ := args["device_id"].(string)
	if deviceID != "" {
		dev, err := t.iotClient.GetDevice(ctx, deviceID)
		if err != nil {
			return &sdk.ToolResult{ToolName: "iot_query", Success: false, Error: err.Error()}, nil
		}
		return &sdk.ToolResult{ToolName: "iot_query", Success: true, Output: formatDevice(dev)}, nil
	}

	devices, err := t.iotClient.GetAllDevices(ctx)
	if err != nil {
		return &sdk.ToolResult{ToolName: "iot_query", Success: false, Error: err.Error()}, nil
	}
	if len(devices) == 0 {
		return &sdk.ToolResult{ToolName: "iot_query", Success: true, Output: "No devices found"}, nil
	}
	var out string
	for _, d := range devices {
		out += formatDeviceLine(&d) + "\n"
	}
	return &sdk.ToolResult{ToolName: "iot_query", Success: true, Output: out}, nil
}

func formatDevice(d *sdk.IoTDeviceState) string {
	emoji := deviceEmoji(d.Type)
	return fmt.Sprintf("%s %s (%s)\n   Status: %s\n   ID: %s", emoji, d.Name, d.Type, d.Status, d.ID)
}

func formatDeviceLine(d *sdk.IoTDeviceState) string {
	emoji := deviceEmoji(d.Type)
	switch d.Type {
	case "light":
		return fmt.Sprintf("%s %s: %s (brightness: %d, color: %s)", emoji, d.Name, d.Status, d.Brightness, d.Color)
	case "ac":
		return fmt.Sprintf("%s %s: %s (mode: %s, temp: %.1fC)", emoji, d.Name, d.Status, d.Mode, d.Temperature)
	case "curtain":
		return fmt.Sprintf("%s %s: %s (position: %d%%)", emoji, d.Name, d.Status, d.Position)
	case "sensor":
		return fmt.Sprintf("%s %s: %.1f%s", emoji, d.Name, d.Value, d.Unit)
	case "lock":
		return fmt.Sprintf("%s %s: %s (battery: %d%%)", emoji, d.Name, d.Status, d.Battery)
	default:
		return fmt.Sprintf("%s %s: %s", emoji, d.Name, d.Status)
	}
}

func deviceEmoji(t string) string {
	switch t {
	case "light":
		return "\U0001F4A1"
	case "ac":
		return "❄️"
	case "curtain":
		return "\U0001F3E0"
	case "sensor":
		return "\U0001F4CA"
	case "lock":
		return "\U0001F512"
	default:
		return "\U0001F4E6"
	}
}