package tools

import (
	"context"
	"encoding/json"
	"fmt"

	"github.com/mark3labs/mcp-go/mcp"
	"github.com/mark3labs/mcp-go/server"

	"fwh-toolbox-server/services"
)

func RegisterSimCardTools(s *server.MCPServer) {
	// Tool: 查询单张SIM卡
	s.AddTool(
		mcp.NewTool("query_sim_card",
			mcp.WithDescription("查询单张 SIM 卡的详细信息，包括状态、平台、用量等"),
			mcp.WithString("giccid", mcp.Required(), mcp.Description("SIM 卡 GICCID（19位）")),
		),
		handleQuerySimCard,
	)

	// Tool: 搜索SIM卡列表
	s.AddTool(
		mcp.NewTool("search_sim_cards",
			mcp.WithDescription("搜索 SIM 卡列表，支持按状态和平台过滤"),
			mcp.WithNumber("page", mcp.Description("页码，从1开始，默认1")),
			mcp.WithNumber("size", mcp.Description("每页数量，默认10")),
			mcp.WithString("search", mcp.Description("搜索关键字（GICCID）")),
			mcp.WithString("status", mcp.Description("状态过滤：UNKNOWN, NOT_ACTIVATED, ACTIVATED, DEACTIVATED, RETIRED（逗号分隔多选）")),
			mcp.WithString("platform", mcp.Description("平台过滤：SmartHub, Acceleronix（逗号分隔多选）")),
		),
		handleSearchSimCards,
	)
}

func handleQuerySimCard(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	giccid, err := req.RequireString("giccid")
	if err != nil {
		return mcp.NewToolResultError("参数 giccid 必填"), nil
	}

	data, err := services.GetSimCardInfo(giccid)
	if err != nil {
		return mcp.NewToolResultError(fmt.Sprintf("查询失败: %v", err)), nil
	}

	jsonBytes, _ := json.MarshalIndent(data, "", "  ")
	return mcp.NewToolResultText(string(jsonBytes)), nil
}

func handleSearchSimCards(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	page := uint(req.GetFloat("page", 1))
	size := uint(req.GetFloat("size", 10))
	search := req.GetString("search", "")
	status := req.GetString("status", "")
	platform := req.GetString("platform", "")

	var statusPtr *string
	if status != "" {
		statusPtr = &status
	}
	var platformPtr *string
	if platform != "" {
		platformPtr = &platform
	}

	data, err := services.GetSimCardBatchInfo(page, size, search, statusPtr, platformPtr)
	if err != nil {
		return mcp.NewToolResultError(fmt.Sprintf("搜索失败: %v", err)), nil
	}

	jsonBytes, _ := json.MarshalIndent(data, "", "  ")
	return mcp.NewToolResultText(string(jsonBytes)), nil
}