tibba_model_token/
account.rs

1// Copyright 2026 Tree xie.
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7// http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15use super::{
16    Error, JsonSnafu, ModelListParams, Schema, SchemaAllowCreate, SchemaAllowEdit, SchemaType,
17    SchemaView, SqlxSnafu, format_datetime,
18};
19use serde::{Deserialize, Serialize};
20use snafu::ResultExt;
21use sqlx::FromRow;
22use sqlx::{Pool, Postgres, QueryBuilder};
23use std::collections::HashMap;
24use tibba_model::Model;
25use time::PrimitiveDateTime;
26
27type Result<T> = std::result::Result<T, Error>;
28
29#[derive(FromRow)]
30struct TokenAccountSchema {
31    id: i64,
32    user_id: i64,
33    balance: i64,
34    total_recharged: i64,
35    total_consumed: i64,
36    status: i16,
37    remark: String,
38    created: PrimitiveDateTime,
39    modified: PrimitiveDateTime,
40}
41
42#[derive(Debug, Clone, Deserialize, Serialize)]
43pub struct TokenAccount {
44    pub id: i64,
45    pub user_id: i64,
46    pub balance: i64,
47    pub total_recharged: i64,
48    pub total_consumed: i64,
49    pub status: i16,
50    pub remark: String,
51    pub created: String,
52    pub modified: String,
53}
54
55impl From<TokenAccountSchema> for TokenAccount {
56    fn from(s: TokenAccountSchema) -> Self {
57        Self {
58            id: s.id,
59            user_id: s.user_id,
60            balance: s.balance,
61            total_recharged: s.total_recharged,
62            total_consumed: s.total_consumed,
63            status: s.status,
64            remark: s.remark,
65            created: format_datetime(s.created),
66            modified: format_datetime(s.modified),
67        }
68    }
69}
70
71#[derive(Debug, Clone, Deserialize, Default)]
72pub struct TokenAccountInsertParams {
73    pub user_id: i64,
74    pub remark: Option<String>,
75}
76
77#[derive(Debug, Clone, Deserialize, Default)]
78pub struct TokenAccountUpdateParams {
79    pub status: Option<i16>,
80    pub remark: Option<String>,
81}
82
83#[derive(Default)]
84pub struct TokenAccountModel {}
85
86impl TokenAccountModel {
87    /// 按用户 ID 查询账户。
88    pub async fn get_by_user_id(
89        &self,
90        pool: &Pool<Postgres>,
91        user_id: i64,
92    ) -> Result<Option<TokenAccount>> {
93        let result = sqlx::query_as::<_, TokenAccountSchema>(
94            r#"SELECT * FROM token_accounts WHERE user_id = $1 AND deleted_at IS NULL"#,
95        )
96        .bind(user_id)
97        .fetch_optional(pool)
98        .await
99        .context(SqlxSnafu)?;
100        Ok(result.map(Into::into))
101    }
102
103    /// 若账户不存在则自动创建，返回当前账户信息。
104    /// 通常在用户注册后调用。
105    pub async fn get_or_create(&self, pool: &Pool<Postgres>, user_id: i64) -> Result<TokenAccount> {
106        sqlx::query(
107            r#"INSERT INTO token_accounts (user_id) VALUES ($1) ON CONFLICT (user_id) WHERE deleted_at IS NULL DO NOTHING"#,
108        )
109        .bind(user_id)
110        .execute(pool)
111        .await
112        .context(SqlxSnafu)?;
113
114        self.get_by_user_id(pool, user_id)
115            .await?
116            .ok_or(Error::NotFound)
117    }
118
119    /// 原子性增加余额（充值）。
120    /// 同步更新 total_recharged 汇总字段。
121    /// 返回更新后的余额。
122    pub async fn add_balance(
123        &self,
124        pool: &Pool<Postgres>,
125        user_id: i64,
126        amount: i64,
127    ) -> Result<i64> {
128        let row: (i64,) = sqlx::query_as(
129            r#"
130            UPDATE token_accounts
131               SET balance          = balance + $1,
132                   total_recharged  = total_recharged + $1
133             WHERE user_id = $2 AND deleted_at IS NULL
134             RETURNING balance"#,
135        )
136        .bind(amount)
137        .bind(user_id)
138        .fetch_one(pool)
139        .await
140        .context(SqlxSnafu)?;
141        Ok(row.0)
142    }
143
144    /// 原子性扣减余额（消费）。
145    /// 余额不足时返回 `Error::InsufficientBalance`（HTTP 402），不会产生负余额。
146    /// 返回扣减后的余额。
147    pub async fn deduct_balance(
148        &self,
149        pool: &Pool<Postgres>,
150        user_id: i64,
151        amount: i64,
152    ) -> Result<i64> {
153        let result = sqlx::query_as::<_, (i64,)>(
154            r#"
155            UPDATE token_accounts
156               SET balance         = balance - $1,
157                   total_consumed  = total_consumed + $1
158             WHERE user_id = $2
159               AND balance >= $1
160               AND status = 1
161               AND deleted_at IS NULL
162             RETURNING balance"#,
163        )
164        .bind(amount)
165        .bind(user_id)
166        .fetch_optional(pool)
167        .await
168        .context(SqlxSnafu)?;
169
170        match result {
171            Some(row) => Ok(row.0),
172            None => Err(Error::InsufficientBalance),
173        }
174    }
175}
176
177impl Model for TokenAccountModel {
178    type Output = TokenAccount;
179    fn new() -> Self {
180        Self::default()
181    }
182
183    async fn schema_view(&self, _pool: &Pool<Postgres>) -> SchemaView {
184        SchemaView {
185            schemas: vec![
186                Schema::new_id(),
187                Schema::new_user_search("user_id"),
188                Schema {
189                    name: "balance".to_string(),
190                    category: SchemaType::Number,
191                    ..Default::default()
192                },
193                Schema {
194                    name: "total_recharged".to_string(),
195                    category: SchemaType::Number,
196                    read_only: true,
197                    ..Default::default()
198                },
199                Schema {
200                    name: "total_consumed".to_string(),
201                    category: SchemaType::Number,
202                    read_only: true,
203                    ..Default::default()
204                },
205                Schema::new_status(),
206                Schema::new_remark(),
207                Schema::new_created(),
208                Schema::new_modified(),
209            ],
210            allow_edit: SchemaAllowEdit {
211                roles: vec!["su".to_string(), "admin".to_string()],
212                ..Default::default()
213            },
214            allow_create: SchemaAllowCreate {
215                roles: vec!["su".to_string(), "admin".to_string()],
216                ..Default::default()
217            },
218        }
219    }
220
221    async fn insert(&self, pool: &Pool<Postgres>, mut data: serde_json::Value) -> Result<u64> {
222        // user_id 支持前端以字符串形式传入
223        if let Some(obj) = data.as_object_mut() {
224            if let Some(id_str) = obj.get("user_id").and_then(|v| v.as_str()) {
225                if let Ok(id) = id_str.parse::<i64>() {
226                    obj.insert("user_id".to_string(), id.into());
227                }
228            }
229        }
230        let params: TokenAccountInsertParams = serde_json::from_value(data).context(JsonSnafu)?;
231        let row: (i64,) = sqlx::query_as(
232            r#"INSERT INTO token_accounts (user_id, remark) VALUES ($1, $2) RETURNING id"#,
233        )
234        .bind(params.user_id)
235        .bind(params.remark.unwrap_or_default())
236        .fetch_one(pool)
237        .await
238        .context(SqlxSnafu)?;
239        Ok(row.0 as u64)
240    }
241
242    async fn get_by_id(&self, pool: &Pool<Postgres>, id: u64) -> Result<Option<Self::Output>> {
243        let result = sqlx::query_as::<_, TokenAccountSchema>(
244            r#"SELECT * FROM token_accounts WHERE id = $1 AND deleted_at IS NULL"#,
245        )
246        .bind(id as i64)
247        .fetch_optional(pool)
248        .await
249        .context(SqlxSnafu)?;
250        Ok(result.map(Into::into))
251    }
252
253    async fn update_by_id(
254        &self,
255        pool: &Pool<Postgres>,
256        id: u64,
257        data: serde_json::Value,
258    ) -> Result<()> {
259        let params: TokenAccountUpdateParams = serde_json::from_value(data).context(JsonSnafu)?;
260        let mut qb: QueryBuilder<Postgres> =
261            QueryBuilder::new("UPDATE token_accounts SET modified = NOW()");
262        if let Some(status) = params.status {
263            qb.push(", status = ").push_bind(status);
264        }
265        if let Some(remark) = params.remark {
266            qb.push(", remark = ").push_bind(remark);
267        }
268        qb.push(" WHERE id = ").push_bind(id as i64);
269        qb.push(" AND deleted_at IS NULL");
270        qb.build().execute(pool).await.context(SqlxSnafu)?;
271        Ok(())
272    }
273
274    async fn delete_by_id(&self, pool: &Pool<Postgres>, id: u64) -> Result<()> {
275        sqlx::query(
276            r#"UPDATE token_accounts SET deleted_at = NOW(), modified = NOW() WHERE id = $1 AND deleted_at IS NULL"#,
277        )
278        .bind(id as i64)
279        .execute(pool)
280        .await
281        .context(SqlxSnafu)?;
282        Ok(())
283    }
284
285    async fn count(&self, pool: &Pool<Postgres>, params: &ModelListParams) -> Result<i64> {
286        let mut qb: QueryBuilder<Postgres> =
287            QueryBuilder::new("SELECT COUNT(*) FROM token_accounts");
288        self.push_conditions(&mut qb, params)?;
289        let row: (i64,) = qb
290            .build_query_as()
291            .fetch_one(pool)
292            .await
293            .context(SqlxSnafu)?;
294        Ok(row.0)
295    }
296
297    async fn list(
298        &self,
299        pool: &Pool<Postgres>,
300        params: &ModelListParams,
301    ) -> Result<Vec<Self::Output>> {
302        let mut qb: QueryBuilder<Postgres> = QueryBuilder::new("SELECT * FROM token_accounts");
303        self.push_conditions(&mut qb, params)?;
304        params.push_pagination(&mut qb);
305        let rows = qb
306            .build_query_as::<TokenAccountSchema>()
307            .fetch_all(pool)
308            .await
309            .context(SqlxSnafu)?;
310        Ok(rows.into_iter().map(Into::into).collect())
311    }
312
313    fn push_filter_conditions<'args>(
314        &self,
315        qb: &mut QueryBuilder<'args, Postgres>,
316        filters: &HashMap<String, String>,
317    ) -> Result<()> {
318        if let Some(status) = filters.get("status") {
319            if let Ok(s) = status.parse::<i16>() {
320                qb.push(" AND status = ").push_bind(s);
321            }
322        }
323        Ok(())
324    }
325}
tibba_model_token/account.rs

tibba_model_token/
account.rs
