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heros/build-templates/wechatgame/cloud_functions/cocos_cloud/modules/inventory.js
2025-09-20 09:49:22 +08:00

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// 通用库存操作模块 (items, tals, equips)
const { getOrCreaterUser } = require('./auth');
const user_db_name = "cocos_users";
// 支持的数据类型
const SUPPORTED_TYPES = ['items', 'tals', 'equips'];
/**
* 验证数据类型
* @param {string} dataType 数据类型
* @returns {boolean} 是否有效
*/
function validateDataType(dataType) {
return SUPPORTED_TYPES.includes(dataType);
}
/**
* 获取库存数据
* @param {Object} db 数据库实例
* @param {string} openid 用户openid
* @param {string} dataType 数据类型 ('items', 'tals', 'equips')
* @returns {Object} 操作结果
*/
async function getInventory(db, openid, dataType) {
try {
if (!validateDataType(dataType)) {
return {
code: -3,
msg: `无效的数据类型: ${dataType}`
};
}
let user = await getOrCreaterUser(db, openid);
if (!user) {
return {
code: -4,
msg: "未找到用户"
};
}
return {
code: 200,
data: user[dataType],
msg: `${dataType}获取成功`
};
} catch (error) {
console.error(`获取${dataType}错误:`, error);
return {
code: -5,
msg: `获取${dataType}错误: ${error.message}`
};
}
}
/**
* 获取单个物品数据
* @param {Object} db 数据库实例
* @param {string} openid 用户openid
* @param {string} dataType 数据类型
* @param {number} itemId 物品ID
* @returns {Object} 操作结果
*/
async function getInventoryItem(db, openid, dataType, itemId) {
try {
if (!validateDataType(dataType)) {
return {
code: -3,
msg: `无效的数据类型: ${dataType}`
};
}
let user = await getOrCreaterUser(db, openid);
if (!user) {
return {
code: -4,
msg: "未找到用户"
};
}
const itemCount = user[dataType][itemId];
if (itemCount === undefined) {
return {
code: -6,
msg: `${dataType.slice(0, -1)} ${itemId} 未找到`
};
}
return {
code: 200,
data: {
item_id: itemId,
count: itemCount
},
msg: `${dataType.slice(0, -1)} ${itemId} 获取成功`
};
} catch (error) {
console.error(`获取${dataType}物品错误:`, error);
return {
code: -5,
msg: `获取${dataType}物品错误: ${error.message}`
};
}
}
/**
* 添加物品
* @param {Object} db 数据库实例
* @param {string} openid 用户openid
* @param {string} dataType 数据类型
* @param {number} itemId 物品ID
* @param {number} count 添加数量
* @returns {Object} 操作结果
*/
async function addInventoryItem(db, openid, dataType, itemId, count) {
try {
if (!validateDataType(dataType)) {
return {
code: -3,
msg: `无效的数据类型: ${dataType}`
};
}
const _ = db.command;
let user = await getOrCreaterUser(db, openid);
if (!user) {
return {
code: -4,
msg: "未找到用户"
};
}
if (typeof count !== 'number' || count < 0) {
return {
code: -3,
msg: "数量必须是非负数"
};
}
const currentCount = user[dataType][itemId] || 0;
const newCount = currentCount + count;
let updateRes = await db.collection(user_db_name).doc(user._id).update({
data: {
[`${dataType}.${itemId}`]: _.set(newCount),
last_save_time: _.set(Date.now())
}
});
if (updateRes?.stats?.updated >= 1) {
return {
code: 200,
data: {
item_id: itemId,
old_count: currentCount,
new_count: newCount,
added: count
},
msg: `${dataType.slice(0, -1)} ${itemId} 添加成功`
};
} else {
return {
code: -1,
msg: `添加 ${dataType.slice(0, -1)} 失败`
};
}
} catch (error) {
console.error(`添加${dataType}物品错误:`, error);
return {
code: -5,
msg: `添加${dataType}物品错误: ${error.message}`
};
}
}
/**
* 消耗物品
* @param {Object} db 数据库实例
* @param {string} openid 用户openid
* @param {string} dataType 数据类型
* @param {number} itemId 物品ID
* @param {number} count 消耗数量
* @returns {Object} 操作结果
*/
async function consumeInventoryItem(db, openid, dataType, itemId, count) {
try {
if (!validateDataType(dataType)) {
return {
code: -3,
msg: `无效的数据类型: ${dataType}`
};
}
let user = await getOrCreaterUser(db, openid);
if (!user) {
return {
code: -4,
msg: "未找到用户"
};
}
if (typeof count !== 'number' || count < 0) {
return {
code: -3,
msg: "数量必须是非负数"
};
}
const currentCount = user[dataType][itemId] || 0;
if (currentCount < count) {
return {
code: -6,
msg: `${dataType.slice(0, -1)} ${itemId}不足, 当前: ${currentCount}, 需要: ${count}`
};
}
return await addInventoryItem(db, openid, dataType, itemId, -count);
} catch (error) {
console.error(`消耗${dataType}物品错误:`, error);
return {
code: -5,
msg: `消耗${dataType}物品错误: ${error.message}`
};
}
}
/**
* 设置物品数量
* @param {Object} db 数据库实例
* @param {string} openid 用户openid
* @param {string} dataType 数据类型
* @param {number} itemId 物品ID
* @param {number} count 新的数量
* @returns {Object} 操作结果
*/
async function setInventoryItem(db, openid, dataType, itemId, count) {
try {
if (!validateDataType(dataType)) {
return {
code: -3,
msg: `无效的数据类型: ${dataType}`
};
}
const _ = db.command;
let user = await getOrCreaterUser(db, openid);
if (!user) {
return {
code: -4,
msg: "未找到用户"
};
}
if (typeof count !== 'number' || count < 0) {
return {
code: -3,
msg: "数量必须是非负数"
};
}
const oldCount = user[dataType][itemId] || 0;
let updateRes = await db.collection(user_db_name).doc(user._id).update({
data: {
[`${dataType}.${itemId}`]: _.set(count),
last_save_time: _.set(Date.now())
}
});
if (updateRes?.stats?.updated >= 1) {
return {
code: 200,
data: {
item_id: itemId,
old_count: oldCount,
new_count: count
},
msg: `${dataType.slice(0, -1)} ${itemId} 设置成功`
};
} else {
return {
code: -1,
msg: `设置 ${dataType.slice(0, -1)} 失败`
};
}
} catch (error) {
console.error(`设置${dataType}物品错误:`, error);
return {
code: -5,
msg: `设置${dataType}物品错误: ${error.message}`
};
}
}
/**
* 批量更新库存
* @param {Object} db 数据库实例
* @param {string} openid 用户openid
* @param {string} dataType 数据类型
* @param {Object} updateData 更新数据对象
* @param {boolean} merge 是否合并更新默认true
* @returns {Object} 操作结果
*/
async function updateInventory(db, openid, dataType, updateData, merge = true) {
try {
if (!validateDataType(dataType)) {
return {
code: -3,
msg: `Invalid data type: ${dataType}`
};
}
const _ = db.command;
let user = await getOrCreaterUser(db, openid);
if (!user) {
return {
code: -4,
msg: "User not found"
};
}
// 验证更新数据
if (!updateData || typeof updateData !== 'object') {
return {
code: -3,
msg: "Invalid update data format"
};
}
// 验证所有值都是非负数
for (const itemId in updateData) {
const count = updateData[itemId];
if (typeof count !== 'number' || count < 0) {
return {
code: -3,
msg: `Invalid count for item ${itemId}: ${count}`
};
}
}
let newData;
if (merge) {
// 合并更新
newData = { ...user[dataType], ...updateData };
} else {
// 完全替换
newData = updateData;
}
let updateRes = await db.collection(user_db_name).doc(user._id).update({
data: {
[dataType]: _.set(newData),
last_save_time: _.set(Date.now())
}
});
if (updateRes?.stats?.updated >= 1) {
return {
code: 200,
data: newData,
msg: `${dataType} updated successfully`
};
} else {
return {
code: -1,
msg: `Update ${dataType} fail`
};
}
} catch (error) {
console.error(`Update ${dataType} error:`, error);
return {
code: -5,
msg: `Update ${dataType} error: ${error.message}`
};
}
}
/**
* 重置库存数据
* @param {Object} db 数据库实例
* @param {string} openid 用户openid
* @param {string} dataType 数据类型
* @returns {Object} 操作结果
*/
async function resetInventory(db, openid, dataType) {
try {
if (!validateDataType(dataType)) {
return {
code: -3,
msg: `Invalid data type: ${dataType}`
};
}
const _ = db.command;
const { getNewUserInitData } = require('../user_init_data');
let user = await getOrCreaterUser(db, openid);
if (!user) {
return {
code: -4,
msg: "User not found"
};
}
const defaultData = getNewUserInitData();
let resetRes = await db.collection(user_db_name).doc(user._id).update({
data: {
[dataType]: _.set(defaultData[dataType]),
last_save_time: _.set(Date.now()),
reset_time: _.set(Date.now())
}
});
if (resetRes?.stats?.updated >= 1) {
return {
code: 200,
data: defaultData[dataType],
msg: `${dataType} reset successfully`
};
} else {
return {
code: -1,
msg: `Reset ${dataType} fail`
};
}
} catch (error) {
console.error(`Reset ${dataType} error:`, error);
return {
code: -5,
msg: `Reset ${dataType} error: ${error.message}`
};
}
}
/**
* 获取拥有的物品列表数量大于0的
* @param {Object} db 数据库实例
* @param {string} openid 用户openid
* @param {string} dataType 数据类型
* @returns {Object} 操作结果
*/
async function getOwnedItems(db, openid, dataType) {
try {
if (!validateDataType(dataType)) {
return {
code: -3,
msg: `Invalid data type: ${dataType}`
};
}
let user = await getOrCreaterUser(db, openid);
if (!user) {
return {
code: -4,
msg: "User not found"
};
}
const ownedItems = [];
for (const itemId in user[dataType]) {
const count = user[dataType][itemId];
if (count > 0) {
ownedItems.push({
item_id: parseInt(itemId),
count: count
});
}
}
return {
code: 200,
data: {
owned_items: ownedItems,
total_types: ownedItems.length
},
msg: `Owned ${dataType} retrieved successfully`
};
} catch (error) {
console.error(`Get owned ${dataType} error:`, error);
return {
code: -5,
msg: `Get owned ${dataType} error: ${error.message}`
};
}
}
module.exports = {
getInventory,
getInventoryItem,
addInventoryItem,
consumeInventoryItem,
setInventoryItem,
updateInventory,
resetInventory,
getOwnedItems,
SUPPORTED_TYPES
};