146 lines
4.6 KiB
C
146 lines
4.6 KiB
C
#include <stdbool.h>
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#include <stdio.h>
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#include <string.h>
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#include "cJSON.h"
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#include "lisa_log.h"
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#include "mcp.h"
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#include "project_version.h"
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#include "service_brightness.h"
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#include "service_volume.h"
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#define TAG "mcp_device_info"
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static cJSON *device_info_result_text(const char *name, const char *text, bool is_error)
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{
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cJSON *result = mcp_tool_call_result_create(name);
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if (!result) {
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return NULL;
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}
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cJSON *content_array = cJSON_CreateArray();
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cJSON *content_item = cJSON_CreateObject();
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if (!content_array || !content_item) {
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if (content_array) {
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cJSON_Delete(content_array);
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}
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cJSON_Delete(content_item);
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cJSON_Delete(result);
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return NULL;
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}
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cJSON_AddStringToObject(content_item, "type", "text");
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cJSON_AddStringToObject(content_item, "text", text);
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cJSON_AddItemToArray(content_array, content_item);
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cJSON_AddItemToObject(result, "content", content_array);
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cJSON_AddBoolToObject(result, "isError", is_error);
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return result;
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}
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static cJSON *device_info_list(const char *name)
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{
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cJSON *tool = mcp_tool_list_info_create_default(
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name,
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"查询设备的状态信息。可以同时获取当前音量、当前屏幕亮度、以及设备固件版本号。当用户询问这些信息时调用。");
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if (!tool) {
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return NULL;
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}
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cJSON *fields_property = cJSON_CreateObject();
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cJSON *items = cJSON_CreateObject();
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cJSON *enum_array = cJSON_CreateArray();
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if (!fields_property || !items || !enum_array) {
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cJSON_Delete(fields_property);
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cJSON_Delete(items);
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cJSON_Delete(enum_array);
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cJSON_Delete(tool);
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return NULL;
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}
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cJSON_AddStringToObject(fields_property, "type", "array");
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cJSON_AddStringToObject(
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fields_property,
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"description",
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"需要查询的信息字段列表。可包含 'volume'（音量）, 'brightness'（亮度）, 'version'（版本号）中的一个或多个。");
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cJSON_AddStringToObject(items, "type", "string");
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cJSON_AddItemToArray(enum_array, cJSON_CreateString("volume"));
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cJSON_AddItemToArray(enum_array, cJSON_CreateString("brightness"));
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cJSON_AddItemToArray(enum_array, cJSON_CreateString("version"));
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cJSON_AddItemToObject(items, "enum", enum_array);
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cJSON_AddItemToObject(fields_property, "items", items);
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mcp_tool_info_add_json_property(tool, "fields", fields_property, true);
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return tool;
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}
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static cJSON *device_info_call(const char *id, const char *name, cJSON *args)
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{
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(void)id;
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const cJSON *fields_json = mcp_tool_call_args_get(args, "fields");
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if (!fields_json || !cJSON_IsArray(fields_json)) {
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return device_info_result_text(name, "参数 fields 缺失或格式错误，必须是数组。", true);
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}
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bool need_volume = false;
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bool need_brightness = false;
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bool need_version = false;
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cJSON *field = NULL;
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cJSON_ArrayForEach(field, fields_json)
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{
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if (!cJSON_IsString(field) || !field->valuestring) {
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return device_info_result_text(name, "fields 中存在非字符串元素。", true);
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}
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if (strcmp(field->valuestring, "volume") == 0) {
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need_volume = true;
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} else if (strcmp(field->valuestring, "brightness") == 0) {
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need_brightness = true;
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} else if (strcmp(field->valuestring, "version") == 0) {
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need_version = true;
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} else {
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char error_text[128];
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snprintf(error_text, sizeof(error_text), "fields 包含不支持的字段: %s", field->valuestring);
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return device_info_result_text(name, error_text, true);
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}
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}
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if (!need_volume && !need_brightness && !need_version) {
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return device_info_result_text(name, "fields 不能为空。", true);
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}
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cJSON *payload = cJSON_CreateObject();
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if (!payload) {
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return NULL;
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}
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if (need_volume) {
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cJSON_AddNumberToObject(payload, "volume", service_volume_get());
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}
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if (need_brightness) {
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cJSON_AddNumberToObject(payload, "brightness", service_brightness_get());
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}
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if (need_version) {
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cJSON_AddStringToObject(payload, "version", PROJECT_VERSION_STR);
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}
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char *payload_text = cJSON_PrintUnformatted(payload);
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cJSON_Delete(payload);
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if (!payload_text) {
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return NULL;
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}
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cJSON *result = device_info_result_text(name, payload_text, false);
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cJSON_free(payload_text);
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LOGI("get_device_info called, volume=%d brightness=%d version=%d",
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need_volume, need_brightness, need_version);
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return result;
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}
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MCP_TOOL_DEFINE(ls.get_device_info, device_info_list, device_info_call);
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