1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
//! # cala-ledger
//!
//! This crate provides a set of primitives for implementing an SQL-compatible
//! double-entry accounting system. This system is engineered specifically is
//! for dealing with money and building financial products.
//!
//! Visit the [website of the Cala project](https://cala.sh) for more info and
//! tutorials.
//!
//! ## Quick Start
//!
//! Here is how to initialize a ledger create a primitive template and post a transaction.
//! This is a toy example that brings all pieces together end-to-end.
//! Not recommended for real use.
//! ```rust
//! use cala_ledger::{account::*, journal::*, tx_template::*, *};
//! use rust_decimal::Decimal;
//! use uuid::uuid;
//!
//! async fn init_cala(journal_id: JournalId) -> anyhow::Result<CalaLedger, anyhow::Error> {
//! let pg_con = std::env::var("PG_CON")
//! .unwrap_or_else(|_| "postgres://user:password@localhost:5432/pg".to_string());
//! let pool = sqlx::PgPool::connect(&pg_con).await?;
//! // The caller owns the `Jobs` and drives the EC rollup by polling it.
//! let mut jobs = job::Jobs::init(
//! job::JobSvcConfig::builder()
//! .pool(pool.clone())
//! .build()
//! .map_err(anyhow::Error::msg)?,
//! )
//! .await?;
//! let cala_config = CalaLedgerConfig::builder()
//! .pool(pool)
//! // .exec_migrations(true) # commented out for execution in CI
//! .build()?;
//! let cala = CalaLedger::init(cala_config, &mut jobs).await?;
//!
//! // Initialize the journal - all entities are constructed via builders
//! let new_journal = NewJournal::builder()
//! .id(journal_id)
//! .name("Ledger")
//! .build()
//! .expect("Couldn't build NewJournal");
//! let _ = cala.journals().create(new_journal).await;
//!
//! // Initialize an income omnibus account
//! let main_account_id = uuid!("00000000-0000-0000-0000-000000000001");
//! let new_account = NewAccount::builder()
//! .id(main_account_id)
//! .name("Income")
//! .code("Income")
//! .build()?;
//! cala.accounts().create(new_account).await?;
//!
//! // Create the trivial 'income' template
//! let params = vec![
//! NewParamDefinition::builder()
//! .name("sender_account_id")
//! .r#type(ParamDataType::Uuid)
//! .build()?,
//! NewParamDefinition::builder()
//! .name("units")
//! .r#type(ParamDataType::Decimal)
//! .build()?,
//! ];
//!
//! let entries = vec![
//! NewTxTemplateEntry::builder()
//! .entry_type("'INCOME_DR'")
//! .account_id("params.sender_account_id")
//! .layer("SETTLED")
//! .direction("DEBIT")
//! .units("params.units")
//! .currency("'BTC'")
//! .build()?,
//! NewTxTemplateEntry::builder()
//! .entry_type("'INCOME_CR'")
//! .account_id(format!("uuid('{}')", main_account_id))
//! .layer("SETTLED")
//! .direction("CREDIT")
//! .units("params.units")
//! .currency("'BTC'")
//! .build()?,
//! ];
//!
//! let tx_code = "GENERAL_INCOME";
//! let new_template = NewTxTemplate::builder()
//! .id(uuid::Uuid::now_v7())
//! .code(tx_code)
//! .params(params)
//! .transaction(
//! NewTxTemplateTransaction::builder()
//! .effective("date()")
//! .journal_id(format!("uuid('{}')", journal_id))
//! .build()?,
//! )
//! .entries(entries)
//! .build()?;
//!
//! cala.tx_templates().create(new_template).await?;
//! Ok(cala)
//! }
//!
//! #[tokio::main]
//! async fn main() -> anyhow::Result<()> {
//! let journal_id = JournalId::from(uuid!("00000000-0000-0000-0000-000000000001"));
//! let cala = init_cala(journal_id).await?;
//! // The account that is sending to the general income account
//! let sender_account_id = AccountId::new();
//! let sender_account = NewAccount::builder()
//! .id(sender_account_id)
//! .name(format!("Sender-{}", sender_account_id))
//! .code(format!("Sender-{}", sender_account_id))
//! .build()?;
//! cala.accounts().create(sender_account).await?;
//! // Prepare the input parameters that the template requires
//! let mut params = Params::new();
//! params.insert("sender_account_id", sender_account_id);
//! params.insert("units", Decimal::ONE);
//! // Create the transaction via the template
//! cala.post_transaction(TransactionId::new(), "GENERAL_INCOME", params)
//! .await?;
//!
//! let account_balance = cala
//! .balances()
//! .find(journal_id, sender_account_id, "BTC".parse()?)
//! .await?;
//!
//! let expected_balance = Decimal::new(-1, 0); // Define the expected balance
//! assert_eq!(account_balance.settled(), expected_balance);
//! Ok(())
//! }
//! ```
pub use es_entity;
// Re-exported so consumers can pass a `job::Jobs` of the same `job` version
// cala-ledger links into `CalaLedger::init` for EC-rollup registration.
pub use job;
pub use EcRollupStatus;
pub use *;
pub use *;
/// Internal fuzz harnesses. Exposed only under the `fuzz` feature so the
/// out-of-tree cargo-fuzz crate (`fuzz/`) can drive logic that is otherwise
/// `pub(crate)`. Not part of the public API; no stability guarantees.