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g1t/services/billing/src/rename.rs

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Agents and memory, checks and conflicts, profiles, slug renames, custom domains1//! A workspace renamed: everything billing keeps under its slug moves to
2//! the new one.
3//!
4//! Identity publishes `workspace.renamed` with the old and new slugs. The
5//! handler asks identity what the workspace is called now, so that a late
6//! or repeated delivery still converges on the current slug, and moves the
7//! rows of each stale slug in one D1 batch (one transaction).
8//!
9//! Rows may already exist under the current slug: usage recorded in the
10//! seconds between the rename and this event. Those are merged, never
11//! dropped where money is concerned: balances are summed, sandbox seconds
12//! are summed, and owners' limits are kept field by field.
13
14use g1t_contracts::events::{Event, WorkspaceRenamed};
15use g1t_contracts::identity::UsernamesArgs;
16use serde::Deserialize;
17use serde_json::Value;
18use worker::wasm_bindgen::JsValue;
19use worker::{Fetcher, Result};
20
21use crate::Billing;
22use crate::accounts::own_account;
23
24/// The event this module handles.
25pub(crate) const RENAMED: &str = "workspace.renamed";
26
27/// The statements that move one stale slug's rows to the current slug, in
28/// order. Parameters: `?1` the current slug, `?2` the stale one, `?3` and
29/// `?4` their own billing accounts (`ws_<slug>`).
30///
31/// Every statement is a no-op once the stale slug has no rows, so running
32/// the batch again changes nothing.
33pub(crate) const STATEMENTS: &[&str] = &[
34 // Plain rows: many per workspace, keyed by their own id.
35 "UPDATE ledger SET workspace = ?1 WHERE workspace = ?2",
36 "UPDATE runs SET workspace = ?1 WHERE workspace = ?2",
37 "UPDATE checkouts SET workspace = ?1 WHERE workspace = ?2",
38 "UPDATE workspace_invoices SET workspace = ?1 WHERE workspace = ?2",
39 "UPDATE sales_notes SET workspace = ?1 WHERE workspace = ?2",
40 // Repositories are named `<slug>/<name>`. Compared exactly rather than
41 // with LIKE, so nothing in a slug is read as a wildcard.
42 "UPDATE ledger SET repo = ?1 || substr(repo, length(?2) + 1) WHERE substr(repo, 1, length(?2) + 1) = ?2 || '/'",
43 "UPDATE runs SET repo = ?1 || substr(repo, length(?2) + 1) WHERE substr(repo, 1, length(?2) + 1) = ?2 || '/'",
44 // The balance is the sum of the ledger, and both ledgers are now the
45 // current slug's: the balances add. The older customer (with the card
46 // and the payment history) is kept when both have one.
47 "INSERT INTO accounts (workspace, balance_micros, customer_id, created_at)
48 SELECT ?1, balance_micros, customer_id, created_at FROM accounts WHERE workspace = ?2
49 ON CONFLICT (workspace) DO UPDATE SET
50 balance_micros = accounts.balance_micros + excluded.balance_micros,
51 customer_id = COALESCE(excluded.customer_id, accounts.customer_id),
52 created_at = MIN(accounts.created_at, excluded.created_at)",
53 "DELETE FROM accounts WHERE workspace = ?2",
54 // Replaced on each report with the month's whole figure: the newer
55 // report wins.
56 "INSERT INTO pending_usage (workspace, source, month, charge_micros, updated_at)
57 SELECT ?1, source, month, charge_micros, updated_at FROM pending_usage WHERE workspace = ?2
58 ON CONFLICT (workspace, source, month) DO UPDATE SET
59 charge_micros = CASE WHEN excluded.updated_at > pending_usage.updated_at
60 THEN excluded.charge_micros ELSE pending_usage.charge_micros END,
61 updated_at = MAX(pending_usage.updated_at, excluded.updated_at)",
62 "DELETE FROM pending_usage WHERE workspace = ?2",
63 // Limits, field by field: a ceiling or an owner's spend limit set under
64 // either slug is kept (the current slug's if both), a stop for a
65 // declined card stays, and the highest warning this month is kept.
66 "INSERT INTO limits (workspace, ceiling_micros, spend_limit_micros, spend_limit_full, autopay_failed_at,
67 autopay_error, warned_month, warned_level, declined_told_at, updated_at)
68 SELECT ?1, ceiling_micros, spend_limit_micros, spend_limit_full, autopay_failed_at,
69 autopay_error, warned_month, warned_level, declined_told_at, updated_at
70 FROM limits WHERE workspace = ?2
71 ON CONFLICT (workspace) DO UPDATE SET
72 ceiling_micros = COALESCE(limits.ceiling_micros, excluded.ceiling_micros),
73 spend_limit_micros = CASE WHEN limits.spend_limit_micros IS NOT NULL OR limits.spend_limit_full = 1
74 THEN limits.spend_limit_micros ELSE excluded.spend_limit_micros END,
75 spend_limit_full = CASE WHEN limits.spend_limit_micros IS NOT NULL OR limits.spend_limit_full = 1
76 THEN limits.spend_limit_full ELSE excluded.spend_limit_full END,
77 autopay_error = CASE WHEN limits.autopay_failed_at IS NOT NULL
78 THEN limits.autopay_error ELSE excluded.autopay_error END,
79 autopay_failed_at = COALESCE(limits.autopay_failed_at, excluded.autopay_failed_at),
80 warned_level = CASE WHEN excluded.warned_month > COALESCE(limits.warned_month, '') THEN excluded.warned_level
81 WHEN excluded.warned_month = limits.warned_month THEN MAX(limits.warned_level, excluded.warned_level)
82 ELSE limits.warned_level END,
83 warned_month = COALESCE(MAX(limits.warned_month, excluded.warned_month), limits.warned_month, excluded.warned_month),
84 declined_told_at = COALESCE(MAX(limits.declined_told_at, excluded.declined_told_at), limits.declined_told_at, excluded.declined_told_at),
85 updated_at = MAX(limits.updated_at, excluded.updated_at)",
86 "DELETE FROM limits WHERE workspace = ?2",
87 // Plans: one per feature. A live plan under the stale slug replaces a
88 // canceled one under the current slug; otherwise the current one stays.
89 "DELETE FROM subscriptions WHERE workspace = ?1 AND status = 'canceled'
90 AND feature IN (SELECT feature FROM subscriptions WHERE workspace = ?2 AND status <> 'canceled')",
91 "UPDATE OR IGNORE subscriptions SET workspace = ?1 WHERE workspace = ?2",
92 "DELETE FROM subscriptions WHERE workspace = ?2",
93 // Records of one per workspace (per month): the current slug's stays
94 // if it has one.
95 "UPDATE OR IGNORE month_closes SET workspace = ?1 WHERE workspace = ?2",
96 "DELETE FROM month_closes WHERE workspace = ?2",
97 "UPDATE OR IGNORE account_members SET workspace = ?1 WHERE workspace = ?2",
98 "DELETE FROM account_members WHERE workspace = ?2",
99 "UPDATE OR IGNORE sales_records SET workspace = ?1 WHERE workspace = ?2",
100 "DELETE FROM sales_records WHERE workspace = ?2",
101 // An enterprise invoice's line for the workspace: amounts add.
102 "INSERT INTO enterprise_invoice_lines (invoice_id, workspace, amount_micros)
103 SELECT invoice_id, ?1, amount_micros FROM enterprise_invoice_lines WHERE workspace = ?2
104 ON CONFLICT (invoice_id, workspace) DO UPDATE SET
105 amount_micros = enterprise_invoice_lines.amount_micros + excluded.amount_micros",
106 "DELETE FROM enterprise_invoice_lines WHERE workspace = ?2",
107 // The workspace's own billing account, `ws_<slug>`. Terms set by staff
108 // are kept: a standard row under the current slug gives way to the
109 // stale one; two with terms keep the current one.
110 "DELETE FROM billing_accounts WHERE id = ?3 AND terms_kind = 'standard'
111 AND EXISTS (SELECT 1 FROM billing_accounts WHERE id = ?4)",
112 "UPDATE OR IGNORE billing_accounts SET id = ?3, name = CASE WHEN name = ?2 THEN ?1 ELSE name END WHERE id = ?4",
113 "DELETE FROM billing_accounts WHERE id = ?4",
114 "UPDATE admin_actions SET account = ?3 WHERE account = ?4",
115 "UPDATE account_members SET account_id = ?3 WHERE account_id = ?4",
116 "UPDATE enterprise_invoices SET account_id = ?3 WHERE account_id = ?4",
117];
118
119/// The highest `?N` a statement names: how many values it is bound with.
120pub(crate) fn parameters(sql: &str) -> usize {
121 let bytes = sql.as_bytes();
122 let mut highest = 0;
123 for (i, byte) in bytes.iter().enumerate() {
124 if *byte == b'?' {
125 let digits: String = bytes[i + 1..].iter().take_while(|b| b.is_ascii_digit()).map(|b| *b as char).collect();
126 highest = highest.max(digits.parse().unwrap_or(0));
127 }
128 }
129 highest
130}
131
132/// The values `STATEMENTS` are bound with, in parameter order.
133pub(crate) fn values(stale: &str, current: &str) -> [String; 4] {
134 [current.to_owned(), stale.to_owned(), own_account(current), own_account(stale)]
135}
136
137impl Billing {
138 /// Handles one event from the bus; every type but a rename is ignored.
139 pub(crate) async fn on_event(&self, identity: Option<&Fetcher>, event: &Event) -> Result<()> {
140 if event.kind != RENAMED {
141 return Ok(());
142 }
143 let renamed: WorkspaceRenamed = serde_json::from_value(event.data.clone())?;
144 let current = match identity {
145 Some(identity) => {
146 let names: std::collections::HashMap<String, String> = g1t_kit::call(
147 identity,
148 "usernames",
149 &UsernamesArgs { ids: vec![renamed.workspace_id.clone()] },
150 )
151 .await?;
152 names.get(&renamed.workspace_id).cloned().unwrap_or_else(|| renamed.to.clone())
153 }
154 None => renamed.to.clone(),
155 };
156 self.rename_workspace(&renamed, &current.to_lowercase()).await
157 }
158
159 /// Moves every row of the rename's stale slugs to `current`.
160 pub(crate) async fn rename_workspace(&self, renamed: &WorkspaceRenamed, current: &str) -> Result<()> {
161 for stale in renamed.stale_slugs(current) {
162 let stale = stale.to_lowercase();
163 if stale.is_empty() || stale == current {
164 continue;
165 }
166 let values = values(&stale, current);
167 let mut batch = Vec::with_capacity(STATEMENTS.len());
168 for sql in STATEMENTS {
169 let binds: Vec<JsValue> = values[..parameters(sql)].iter().map(|v| JsValue::from(v.as_str())).collect();
170 batch.push(self.db.prepare(*sql).bind(&binds)?);
171 }
172 self.db.batch(batch).await?;
173 self.rename_customer(&stale, current).await;
174 }
175 Ok(())
176 }
177
178 /// The Stripe customer carries the slug as its name and metadata; both
179 /// follow the rename. A name someone changed at Stripe is left alone.
180 /// Best effort: a failure here moves no money.
181 async fn rename_customer(&self, stale: &str, current: &str) {
182 let Some(stripe) = &self.stripe else { return };
183 let Ok(Some(customer)) = self.row(current).await.map(|row| row.and_then(|row| row.customer_id)) else {
184 return;
185 };
186 #[derive(Deserialize)]
187 struct Customer {
188 name: Option<String>,
189 metadata: Option<std::collections::HashMap<String, String>>,
190 }
191 let path = format!("/customers/{customer}");
192 let found: Customer = match stripe.get(&path).await {
193 Ok(found) => found,
194 Err(error) => {
195 worker::console_error!("renaming {stale} at Stripe: could not read {customer}: {error}");
196 return;
197 }
198 };
199 let mut fields = vec![];
200 if found.name.as_deref() == Some(stale) {
201 fields.push(("name", current.to_owned()));
202 }
203 let tagged = found.metadata.as_ref().and_then(|m| m.get("workspace")).map(String::as_str);
204 if tagged != Some(current) {
205 fields.push(("metadata[workspace]", current.to_owned()));
206 }
207 if fields.is_empty() {
208 return;
209 }
210 if let Err(error) = stripe.post::<Value>(&path, &fields).await {
211 worker::console_error!("renaming {stale} at Stripe: could not update {customer}: {error}");
212 }
213 }
214}
215
216#[cfg(test)]
217mod tests {
218 use super::*;
219
220 #[test]
221 fn every_statement_is_bound_with_what_it_names() {
222 for sql in STATEMENTS {
223 let n = parameters(sql);
224 assert!((1..=4).contains(&n), "{sql}");
225 // Numbered only: a bare `?` would take the wrong value.
226 assert!(!sql.contains("? ") && !sql.ends_with('?'), "{sql}");
227 }
228 assert_eq!(parameters("UPDATE t SET a = ?1 WHERE b = ?2"), 2);
229 assert_eq!(parameters("UPDATE t SET a = ?3 WHERE b = ?4"), 4);
230 }
231
232 #[test]
233 fn the_values_name_both_slugs_and_their_accounts() {
234 assert_eq!(values("acme", "acme-co"), ["acme-co".to_owned(), "acme".into(), "ws_acme-co".into(), "ws_acme".into()]);
235 }
236
237 #[test]
238 fn every_table_keyed_by_a_slug_is_moved() {
239 let all = STATEMENTS.join("\n");
240 for table in [
Prices are what g1t pays plus 20%, from the first second241 "ledger", "runs", "checkouts", "workspace_invoices", "sales_notes", "accounts",
Agents and memory, checks and conflicts, profiles, slug renames, custom domains242 "pending_usage", "limits", "subscriptions", "month_closes", "account_members", "sales_records",
243 "enterprise_invoice_lines", "billing_accounts", "admin_actions", "enterprise_invoices",
244 ] {
245 assert!(all.contains(&format!("FROM {table} WHERE workspace = ?2"))
246 || all.contains(&format!("UPDATE {table} SET"))
247 || all.contains(&format!("UPDATE OR IGNORE {table} SET")), "{table}");
248 }
249 }
250}