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feat(router): Add Smart Routing to route payments efficiently (#2665)
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com> Co-authored-by: shashank_attarde <shashank.attarde@juspay.in> Co-authored-by: Aprabhat19 <amishaprabhat@gmail.com> Co-authored-by: Amisha Prabhat <55580080+Aprabhat19@users.noreply.github.com>
This commit is contained in:
Prajjwal Kumar
39
crates/euclid/src/backend/inputs.rs
Normal file
39
crates/euclid/src/backend/inputs.rs
Normal file
@ -0,0 +1,39 @@
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use rustc_hash::FxHashMap;
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use serde::{Deserialize, Serialize};
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use crate::enums;
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#[derive(Debug, Clone, Serialize, Deserialize)]
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pub struct MandateData {
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pub mandate_acceptance_type: Option<enums::MandateAcceptanceType>,
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pub mandate_type: Option<enums::MandateType>,
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pub payment_type: Option<enums::PaymentType>,
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}
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#[derive(Debug, Clone, Serialize, Deserialize)]
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pub struct PaymentMethodInput {
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pub payment_method: Option<enums::PaymentMethod>,
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pub payment_method_type: Option<enums::PaymentMethodType>,
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pub card_network: Option<enums::CardNetwork>,
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}
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#[derive(Debug, Clone, Serialize, Deserialize)]
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pub struct PaymentInput {
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pub amount: i64,
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pub currency: enums::Currency,
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pub authentication_type: Option<enums::AuthenticationType>,
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pub card_bin: Option<String>,
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pub capture_method: Option<enums::CaptureMethod>,
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pub business_country: Option<enums::Country>,
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pub billing_country: Option<enums::Country>,
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pub business_label: Option<String>,
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pub setup_future_usage: Option<enums::SetupFutureUsage>,
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}
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#[derive(Debug, Clone, Serialize, Deserialize)]
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pub struct BackendInput {
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pub metadata: Option<FxHashMap<String, String>>,
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pub payment: PaymentInput,
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pub payment_method: PaymentMethodInput,
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pub mandate: MandateData,
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}
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180
crates/euclid/src/backend/interpreter.rs
Normal file
180
crates/euclid/src/backend/interpreter.rs
Normal file
@ -0,0 +1,180 @@
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pub mod types;
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use crate::{
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backend::{self, inputs, EuclidBackend},
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frontend::ast,
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};
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pub struct InterpreterBackend<O> {
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program: ast::Program<O>,
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}
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impl<O> InterpreterBackend<O>
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where
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O: Clone,
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{
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fn eval_number_comparison_array(
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num: i64,
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array: &[ast::NumberComparison],
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) -> Result<bool, types::InterpreterError> {
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for comparison in array {
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let other = comparison.number;
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let res = match comparison.comparison_type {
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ast::ComparisonType::GreaterThan => num > other,
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ast::ComparisonType::LessThan => num < other,
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ast::ComparisonType::LessThanEqual => num <= other,
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ast::ComparisonType::GreaterThanEqual => num >= other,
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ast::ComparisonType::Equal => num == other,
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ast::ComparisonType::NotEqual => num != other,
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};
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if res {
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return Ok(true);
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}
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}
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Ok(false)
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}
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fn eval_comparison(
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comparison: &ast::Comparison,
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ctx: &types::Context,
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) -> Result<bool, types::InterpreterError> {
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use ast::{ComparisonType::*, ValueType::*};
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let value = ctx
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.get(&comparison.lhs)
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.ok_or_else(|| types::InterpreterError {
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error_type: types::InterpreterErrorType::InvalidKey(comparison.lhs.clone()),
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metadata: comparison.metadata.clone(),
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})?;
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if let Some(val) = value {
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match (val, &comparison.comparison, &comparison.value) {
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(EnumVariant(e1), Equal, EnumVariant(e2)) => Ok(e1 == e2),
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(EnumVariant(e1), NotEqual, EnumVariant(e2)) => Ok(e1 != e2),
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(EnumVariant(e), Equal, EnumVariantArray(evec)) => Ok(evec.iter().any(|v| e == v)),
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(EnumVariant(e), NotEqual, EnumVariantArray(evec)) => {
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Ok(evec.iter().all(|v| e != v))
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}
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(Number(n1), Equal, Number(n2)) => Ok(n1 == n2),
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(Number(n1), NotEqual, Number(n2)) => Ok(n1 != n2),
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(Number(n1), LessThanEqual, Number(n2)) => Ok(n1 <= n2),
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(Number(n1), GreaterThanEqual, Number(n2)) => Ok(n1 >= n2),
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(Number(n1), LessThan, Number(n2)) => Ok(n1 < n2),
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(Number(n1), GreaterThan, Number(n2)) => Ok(n1 > n2),
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(Number(n), Equal, NumberArray(nvec)) => Ok(nvec.iter().any(|v| v == n)),
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(Number(n), NotEqual, NumberArray(nvec)) => Ok(nvec.iter().all(|v| v != n)),
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(Number(n), Equal, NumberComparisonArray(ncvec)) => {
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Self::eval_number_comparison_array(*n, ncvec)
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}
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_ => Err(types::InterpreterError {
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error_type: types::InterpreterErrorType::InvalidComparison,
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metadata: comparison.metadata.clone(),
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}),
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}
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} else {
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Ok(false)
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}
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}
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fn eval_if_condition(
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condition: &ast::IfCondition,
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ctx: &types::Context,
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) -> Result<bool, types::InterpreterError> {
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for comparison in condition {
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let res = Self::eval_comparison(comparison, ctx)?;
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if !res {
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return Ok(false);
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}
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}
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Ok(true)
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}
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fn eval_if_statement(
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stmt: &ast::IfStatement,
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ctx: &types::Context,
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) -> Result<bool, types::InterpreterError> {
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let cond_res = Self::eval_if_condition(&stmt.condition, ctx)?;
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if !cond_res {
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return Ok(false);
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}
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if let Some(ref nested) = stmt.nested {
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for nested_if in nested {
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let res = Self::eval_if_statement(nested_if, ctx)?;
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if res {
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return Ok(true);
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}
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}
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return Ok(false);
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}
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Ok(true)
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}
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fn eval_rule_statements(
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statements: &[ast::IfStatement],
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ctx: &types::Context,
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) -> Result<bool, types::InterpreterError> {
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for stmt in statements {
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let res = Self::eval_if_statement(stmt, ctx)?;
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if res {
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return Ok(true);
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}
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}
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Ok(false)
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}
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#[inline]
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fn eval_rule(
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rule: &ast::Rule<O>,
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ctx: &types::Context,
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) -> Result<bool, types::InterpreterError> {
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Self::eval_rule_statements(&rule.statements, ctx)
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}
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fn eval_program(
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program: &ast::Program<O>,
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ctx: &types::Context,
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) -> Result<backend::BackendOutput<O>, types::InterpreterError> {
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for rule in &program.rules {
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let res = Self::eval_rule(rule, ctx)?;
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if res {
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return Ok(backend::BackendOutput {
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connector_selection: rule.connector_selection.clone(),
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rule_name: Some(rule.name.clone()),
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});
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}
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}
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Ok(backend::BackendOutput {
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connector_selection: program.default_selection.clone(),
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rule_name: None,
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})
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}
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}
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impl<O> EuclidBackend<O> for InterpreterBackend<O>
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where
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O: Clone,
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{
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type Error = types::InterpreterError;
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fn with_program(program: ast::Program<O>) -> Result<Self, Self::Error> {
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Ok(Self { program })
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}
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fn execute(&self, input: inputs::BackendInput) -> Result<super::BackendOutput<O>, Self::Error> {
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let ctx: types::Context = input.into();
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Self::eval_program(&self.program, &ctx)
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}
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}
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81
crates/euclid/src/backend/interpreter/types.rs
Normal file
81
crates/euclid/src/backend/interpreter/types.rs
Normal file
@ -0,0 +1,81 @@
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use std::{collections::HashMap, fmt, ops::Deref, string::ToString};
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use serde::Serialize;
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use crate::{backend::inputs, frontend::ast::ValueType, types::EuclidKey};
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#[derive(Debug, Clone, Serialize, thiserror::Error)]
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#[serde(tag = "type", content = "data", rename_all = "snake_case")]
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pub enum InterpreterErrorType {
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#[error("Invalid key received '{0}'")]
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InvalidKey(String),
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#[error("Invalid Comparison")]
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InvalidComparison,
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}
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#[derive(Debug, Clone, Serialize, thiserror::Error)]
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pub struct InterpreterError {
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pub error_type: InterpreterErrorType,
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pub metadata: HashMap<String, serde_json::Value>,
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}
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impl fmt::Display for InterpreterError {
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
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InterpreterErrorType::fmt(&self.error_type, f)
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}
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}
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pub struct Context(HashMap<String, Option<ValueType>>);
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impl Deref for Context {
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type Target = HashMap<String, Option<ValueType>>;
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fn deref(&self) -> &Self::Target {
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&self.0
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}
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}
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impl From<inputs::BackendInput> for Context {
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fn from(input: inputs::BackendInput) -> Self {
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let ctx = HashMap::<String, Option<ValueType>>::from_iter([
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(
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EuclidKey::PaymentMethod.to_string(),
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input
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.payment_method
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.payment_method
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.map(|pm| ValueType::EnumVariant(pm.to_string())),
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),
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(
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EuclidKey::PaymentMethodType.to_string(),
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input
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.payment_method
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.payment_method_type
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.map(|pt| ValueType::EnumVariant(pt.to_string())),
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),
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(
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EuclidKey::AuthenticationType.to_string(),
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input
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.payment
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.authentication_type
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.map(|at| ValueType::EnumVariant(at.to_string())),
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),
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(
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EuclidKey::CaptureMethod.to_string(),
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input
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.payment
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.capture_method
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.map(|cm| ValueType::EnumVariant(cm.to_string())),
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),
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(
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EuclidKey::PaymentAmount.to_string(),
|
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Some(ValueType::Number(input.payment.amount)),
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),
|
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(
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EuclidKey::PaymentCurrency.to_string(),
|
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Some(ValueType::EnumVariant(input.payment.currency.to_string())),
|
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),
|
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]);
|
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Self(ctx)
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}
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}
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583
crates/euclid/src/backend/vir_interpreter.rs
Normal file
583
crates/euclid/src/backend/vir_interpreter.rs
Normal file
@ -0,0 +1,583 @@
|
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pub mod types;
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|
||||
use crate::{
|
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backend::{self, inputs, EuclidBackend},
|
||||
frontend::{
|
||||
ast,
|
||||
dir::{self, EuclidDirFilter},
|
||||
vir,
|
||||
},
|
||||
};
|
||||
|
||||
pub struct VirInterpreterBackend<O> {
|
||||
program: vir::ValuedProgram<O>,
|
||||
}
|
||||
|
||||
impl<O> VirInterpreterBackend<O>
|
||||
where
|
||||
O: Clone,
|
||||
{
|
||||
#[inline]
|
||||
fn eval_comparison(comp: &vir::ValuedComparison, ctx: &types::Context) -> bool {
|
||||
match &comp.logic {
|
||||
vir::ValuedComparisonLogic::PositiveDisjunction => {
|
||||
comp.values.iter().any(|v| ctx.check_presence(v))
|
||||
}
|
||||
vir::ValuedComparisonLogic::NegativeConjunction => {
|
||||
comp.values.iter().all(|v| !ctx.check_presence(v))
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
#[inline]
|
||||
fn eval_condition(cond: &vir::ValuedIfCondition, ctx: &types::Context) -> bool {
|
||||
cond.iter().all(|comp| Self::eval_comparison(comp, ctx))
|
||||
}
|
||||
|
||||
fn eval_statement(stmt: &vir::ValuedIfStatement, ctx: &types::Context) -> bool {
|
||||
Self::eval_condition(&stmt.condition, ctx)
|
||||
.then(|| {
|
||||
stmt.nested.as_ref().map_or(true, |nested_stmts| {
|
||||
nested_stmts.iter().any(|s| Self::eval_statement(s, ctx))
|
||||
})
|
||||
})
|
||||
.unwrap_or(false)
|
||||
}
|
||||
|
||||
fn eval_rule(rule: &vir::ValuedRule<O>, ctx: &types::Context) -> bool {
|
||||
rule.statements
|
||||
.iter()
|
||||
.any(|stmt| Self::eval_statement(stmt, ctx))
|
||||
}
|
||||
|
||||
fn eval_program(
|
||||
program: &vir::ValuedProgram<O>,
|
||||
ctx: &types::Context,
|
||||
) -> backend::BackendOutput<O> {
|
||||
program
|
||||
.rules
|
||||
.iter()
|
||||
.find(|rule| Self::eval_rule(rule, ctx))
|
||||
.map_or_else(
|
||||
|| backend::BackendOutput {
|
||||
connector_selection: program.default_selection.clone(),
|
||||
rule_name: None,
|
||||
},
|
||||
|rule| backend::BackendOutput {
|
||||
connector_selection: rule.connector_selection.clone(),
|
||||
rule_name: Some(rule.name.clone()),
|
||||
},
|
||||
)
|
||||
}
|
||||
}
|
||||
|
||||
impl<O> EuclidBackend<O> for VirInterpreterBackend<O>
|
||||
where
|
||||
O: Clone + EuclidDirFilter,
|
||||
{
|
||||
type Error = types::VirInterpreterError;
|
||||
|
||||
fn with_program(program: ast::Program<O>) -> Result<Self, Self::Error> {
|
||||
let dir_program = ast::lowering::lower_program(program)
|
||||
.map_err(types::VirInterpreterError::LoweringError)?;
|
||||
|
||||
let vir_program = dir::lowering::lower_program(dir_program)
|
||||
.map_err(types::VirInterpreterError::LoweringError)?;
|
||||
|
||||
Ok(Self {
|
||||
program: vir_program,
|
||||
})
|
||||
}
|
||||
|
||||
fn execute(
|
||||
&self,
|
||||
input: inputs::BackendInput,
|
||||
) -> Result<backend::BackendOutput<O>, Self::Error> {
|
||||
let ctx = types::Context::from_input(input);
|
||||
Ok(Self::eval_program(&self.program, &ctx))
|
||||
}
|
||||
}
|
||||
#[cfg(all(test, feature = "ast_parser"))]
|
||||
mod test {
|
||||
#![allow(clippy::expect_used)]
|
||||
use rustc_hash::FxHashMap;
|
||||
|
||||
use super::*;
|
||||
use crate::{enums, types::DummyOutput};
|
||||
|
||||
#[test]
|
||||
fn test_execution() {
|
||||
let program_str = r#"
|
||||
default: [ "stripe", "adyen"]
|
||||
|
||||
rule_1: ["stripe"]
|
||||
{
|
||||
pay_later = klarna
|
||||
}
|
||||
|
||||
rule_2: ["adyen"]
|
||||
{
|
||||
pay_later = affirm
|
||||
}
|
||||
"#;
|
||||
|
||||
let (_, program) = ast::parser::program::<DummyOutput>(program_str).expect("Program");
|
||||
let inp = inputs::BackendInput {
|
||||
metadata: None,
|
||||
payment: inputs::PaymentInput {
|
||||
amount: 32,
|
||||
card_bin: None,
|
||||
currency: enums::Currency::USD,
|
||||
authentication_type: Some(enums::AuthenticationType::NoThreeDs),
|
||||
capture_method: Some(enums::CaptureMethod::Automatic),
|
||||
business_country: Some(enums::Country::UnitedStatesOfAmerica),
|
||||
billing_country: Some(enums::Country::France),
|
||||
business_label: None,
|
||||
setup_future_usage: None,
|
||||
},
|
||||
payment_method: inputs::PaymentMethodInput {
|
||||
payment_method: Some(enums::PaymentMethod::PayLater),
|
||||
payment_method_type: Some(enums::PaymentMethodType::Affirm),
|
||||
card_network: None,
|
||||
},
|
||||
mandate: inputs::MandateData {
|
||||
mandate_acceptance_type: None,
|
||||
mandate_type: None,
|
||||
payment_type: None,
|
||||
},
|
||||
};
|
||||
|
||||
let backend = VirInterpreterBackend::<DummyOutput>::with_program(program).expect("Program");
|
||||
let result = backend.execute(inp).expect("Execution");
|
||||
assert_eq!(result.rule_name.expect("Rule Name").as_str(), "rule_2");
|
||||
}
|
||||
#[test]
|
||||
fn test_payment_type() {
|
||||
let program_str = r#"
|
||||
default: ["stripe", "adyen"]
|
||||
rule_1: ["stripe"]
|
||||
{
|
||||
payment_type = setup_mandate
|
||||
}
|
||||
"#;
|
||||
|
||||
let (_, program) = ast::parser::program::<DummyOutput>(program_str).expect("Program");
|
||||
let inp = inputs::BackendInput {
|
||||
metadata: None,
|
||||
payment: inputs::PaymentInput {
|
||||
amount: 32,
|
||||
currency: enums::Currency::USD,
|
||||
card_bin: Some("123456".to_string()),
|
||||
authentication_type: Some(enums::AuthenticationType::NoThreeDs),
|
||||
capture_method: Some(enums::CaptureMethod::Automatic),
|
||||
business_country: Some(enums::Country::UnitedStatesOfAmerica),
|
||||
billing_country: Some(enums::Country::France),
|
||||
business_label: None,
|
||||
setup_future_usage: None,
|
||||
},
|
||||
payment_method: inputs::PaymentMethodInput {
|
||||
payment_method: Some(enums::PaymentMethod::PayLater),
|
||||
payment_method_type: Some(enums::PaymentMethodType::Affirm),
|
||||
card_network: None,
|
||||
},
|
||||
mandate: inputs::MandateData {
|
||||
mandate_acceptance_type: None,
|
||||
mandate_type: None,
|
||||
payment_type: Some(enums::PaymentType::SetupMandate),
|
||||
},
|
||||
};
|
||||
|
||||
let backend = VirInterpreterBackend::<DummyOutput>::with_program(program).expect("Program");
|
||||
let result = backend.execute(inp).expect("Execution");
|
||||
assert_eq!(result.rule_name.expect("Rule Name").as_str(), "rule_1");
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_mandate_type() {
|
||||
let program_str = r#"
|
||||
default: ["stripe", "adyen"]
|
||||
rule_1: ["stripe"]
|
||||
{
|
||||
mandate_type = single_use
|
||||
}
|
||||
"#;
|
||||
|
||||
let (_, program) = ast::parser::program::<DummyOutput>(program_str).expect("Program");
|
||||
let inp = inputs::BackendInput {
|
||||
metadata: None,
|
||||
payment: inputs::PaymentInput {
|
||||
amount: 32,
|
||||
currency: enums::Currency::USD,
|
||||
card_bin: Some("123456".to_string()),
|
||||
authentication_type: Some(enums::AuthenticationType::NoThreeDs),
|
||||
capture_method: Some(enums::CaptureMethod::Automatic),
|
||||
business_country: Some(enums::Country::UnitedStatesOfAmerica),
|
||||
billing_country: Some(enums::Country::France),
|
||||
business_label: None,
|
||||
setup_future_usage: None,
|
||||
},
|
||||
payment_method: inputs::PaymentMethodInput {
|
||||
payment_method: Some(enums::PaymentMethod::PayLater),
|
||||
payment_method_type: Some(enums::PaymentMethodType::Affirm),
|
||||
card_network: None,
|
||||
},
|
||||
mandate: inputs::MandateData {
|
||||
mandate_acceptance_type: None,
|
||||
mandate_type: Some(enums::MandateType::SingleUse),
|
||||
payment_type: None,
|
||||
},
|
||||
};
|
||||
|
||||
let backend = VirInterpreterBackend::<DummyOutput>::with_program(program).expect("Program");
|
||||
let result = backend.execute(inp).expect("Execution");
|
||||
assert_eq!(result.rule_name.expect("Rule Name").as_str(), "rule_1");
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_mandate_acceptance_type() {
|
||||
let program_str = r#"
|
||||
default: ["stripe","adyen"]
|
||||
rule_1: ["stripe"]
|
||||
{
|
||||
mandate_acceptance_type = online
|
||||
}
|
||||
"#;
|
||||
|
||||
let (_, program) = ast::parser::program::<DummyOutput>(program_str).expect("Program");
|
||||
let inp = inputs::BackendInput {
|
||||
metadata: None,
|
||||
payment: inputs::PaymentInput {
|
||||
amount: 32,
|
||||
currency: enums::Currency::USD,
|
||||
card_bin: Some("123456".to_string()),
|
||||
authentication_type: Some(enums::AuthenticationType::NoThreeDs),
|
||||
capture_method: Some(enums::CaptureMethod::Automatic),
|
||||
business_country: Some(enums::Country::UnitedStatesOfAmerica),
|
||||
billing_country: Some(enums::Country::France),
|
||||
business_label: None,
|
||||
setup_future_usage: None,
|
||||
},
|
||||
payment_method: inputs::PaymentMethodInput {
|
||||
payment_method: Some(enums::PaymentMethod::PayLater),
|
||||
payment_method_type: Some(enums::PaymentMethodType::Affirm),
|
||||
card_network: None,
|
||||
},
|
||||
mandate: inputs::MandateData {
|
||||
mandate_acceptance_type: Some(enums::MandateAcceptanceType::Online),
|
||||
mandate_type: None,
|
||||
payment_type: None,
|
||||
},
|
||||
};
|
||||
|
||||
let backend = VirInterpreterBackend::<DummyOutput>::with_program(program).expect("Program");
|
||||
let result = backend.execute(inp).expect("Execution");
|
||||
assert_eq!(result.rule_name.expect("Rule Name").as_str(), "rule_1");
|
||||
}
|
||||
#[test]
|
||||
fn test_card_bin() {
|
||||
let program_str = r#"
|
||||
default: ["stripe", "adyen"]
|
||||
|
||||
rule_1: ["stripe"]
|
||||
{
|
||||
card_bin="123456"
|
||||
}
|
||||
"#;
|
||||
|
||||
let (_, program) = ast::parser::program::<DummyOutput>(program_str).expect("Program");
|
||||
let inp = inputs::BackendInput {
|
||||
metadata: None,
|
||||
payment: inputs::PaymentInput {
|
||||
amount: 32,
|
||||
currency: enums::Currency::USD,
|
||||
card_bin: Some("123456".to_string()),
|
||||
authentication_type: Some(enums::AuthenticationType::NoThreeDs),
|
||||
capture_method: Some(enums::CaptureMethod::Automatic),
|
||||
business_country: Some(enums::Country::UnitedStatesOfAmerica),
|
||||
billing_country: Some(enums::Country::France),
|
||||
business_label: None,
|
||||
setup_future_usage: None,
|
||||
},
|
||||
payment_method: inputs::PaymentMethodInput {
|
||||
payment_method: Some(enums::PaymentMethod::PayLater),
|
||||
payment_method_type: Some(enums::PaymentMethodType::Affirm),
|
||||
card_network: None,
|
||||
},
|
||||
mandate: inputs::MandateData {
|
||||
mandate_acceptance_type: None,
|
||||
mandate_type: None,
|
||||
payment_type: None,
|
||||
},
|
||||
};
|
||||
|
||||
let backend = VirInterpreterBackend::<DummyOutput>::with_program(program).expect("Program");
|
||||
let result = backend.execute(inp).expect("Execution");
|
||||
assert_eq!(result.rule_name.expect("Rule Name").as_str(), "rule_1");
|
||||
}
|
||||
#[test]
|
||||
fn test_payment_amount() {
|
||||
let program_str = r#"
|
||||
default: ["stripe", "adyen"]
|
||||
|
||||
rule_1: ["stripe"]
|
||||
{
|
||||
amount = 32
|
||||
}
|
||||
"#;
|
||||
|
||||
let (_, program) = ast::parser::program::<DummyOutput>(program_str).expect("Program");
|
||||
let inp = inputs::BackendInput {
|
||||
metadata: None,
|
||||
payment: inputs::PaymentInput {
|
||||
amount: 32,
|
||||
currency: enums::Currency::USD,
|
||||
card_bin: None,
|
||||
authentication_type: Some(enums::AuthenticationType::NoThreeDs),
|
||||
capture_method: Some(enums::CaptureMethod::Automatic),
|
||||
business_country: Some(enums::Country::UnitedStatesOfAmerica),
|
||||
billing_country: Some(enums::Country::France),
|
||||
business_label: None,
|
||||
setup_future_usage: None,
|
||||
},
|
||||
payment_method: inputs::PaymentMethodInput {
|
||||
payment_method: Some(enums::PaymentMethod::PayLater),
|
||||
payment_method_type: Some(enums::PaymentMethodType::Affirm),
|
||||
card_network: None,
|
||||
},
|
||||
mandate: inputs::MandateData {
|
||||
mandate_acceptance_type: None,
|
||||
mandate_type: None,
|
||||
payment_type: None,
|
||||
},
|
||||
};
|
||||
|
||||
let backend = VirInterpreterBackend::<DummyOutput>::with_program(program).expect("Program");
|
||||
let result = backend.execute(inp).expect("Execution");
|
||||
assert_eq!(result.rule_name.expect("Rule Name").as_str(), "rule_1");
|
||||
}
|
||||
#[test]
|
||||
fn test_payment_method() {
|
||||
let program_str = r#"
|
||||
default: ["stripe", "adyen"]
|
||||
|
||||
rule_1: ["stripe"]
|
||||
{
|
||||
payment_method = pay_later
|
||||
}
|
||||
"#;
|
||||
|
||||
let (_, program) = ast::parser::program::<DummyOutput>(program_str).expect("Program");
|
||||
let inp = inputs::BackendInput {
|
||||
metadata: None,
|
||||
payment: inputs::PaymentInput {
|
||||
amount: 32,
|
||||
currency: enums::Currency::USD,
|
||||
card_bin: None,
|
||||
authentication_type: Some(enums::AuthenticationType::NoThreeDs),
|
||||
capture_method: Some(enums::CaptureMethod::Automatic),
|
||||
business_country: Some(enums::Country::UnitedStatesOfAmerica),
|
||||
billing_country: Some(enums::Country::France),
|
||||
business_label: None,
|
||||
setup_future_usage: None,
|
||||
},
|
||||
payment_method: inputs::PaymentMethodInput {
|
||||
payment_method: Some(enums::PaymentMethod::PayLater),
|
||||
payment_method_type: Some(enums::PaymentMethodType::Affirm),
|
||||
card_network: None,
|
||||
},
|
||||
mandate: inputs::MandateData {
|
||||
mandate_acceptance_type: None,
|
||||
mandate_type: None,
|
||||
payment_type: None,
|
||||
},
|
||||
};
|
||||
|
||||
let backend = VirInterpreterBackend::<DummyOutput>::with_program(program).expect("Program");
|
||||
let result = backend.execute(inp).expect("Execution");
|
||||
assert_eq!(result.rule_name.expect("Rule Name").as_str(), "rule_1");
|
||||
}
|
||||
#[test]
|
||||
fn test_future_usage() {
|
||||
let program_str = r#"
|
||||
default: ["stripe", "adyen"]
|
||||
|
||||
rule_1: ["stripe"]
|
||||
{
|
||||
setup_future_usage = off_session
|
||||
}
|
||||
"#;
|
||||
|
||||
let (_, program) = ast::parser::program::<DummyOutput>(program_str).expect("Program");
|
||||
let inp = inputs::BackendInput {
|
||||
metadata: None,
|
||||
payment: inputs::PaymentInput {
|
||||
amount: 32,
|
||||
currency: enums::Currency::USD,
|
||||
card_bin: None,
|
||||
authentication_type: Some(enums::AuthenticationType::NoThreeDs),
|
||||
capture_method: Some(enums::CaptureMethod::Automatic),
|
||||
business_country: Some(enums::Country::UnitedStatesOfAmerica),
|
||||
billing_country: Some(enums::Country::France),
|
||||
business_label: None,
|
||||
setup_future_usage: Some(enums::SetupFutureUsage::OffSession),
|
||||
},
|
||||
payment_method: inputs::PaymentMethodInput {
|
||||
payment_method: Some(enums::PaymentMethod::PayLater),
|
||||
payment_method_type: Some(enums::PaymentMethodType::Affirm),
|
||||
card_network: None,
|
||||
},
|
||||
mandate: inputs::MandateData {
|
||||
mandate_acceptance_type: None,
|
||||
mandate_type: None,
|
||||
payment_type: None,
|
||||
},
|
||||
};
|
||||
|
||||
let backend = VirInterpreterBackend::<DummyOutput>::with_program(program).expect("Program");
|
||||
let result = backend.execute(inp).expect("Execution");
|
||||
assert_eq!(result.rule_name.expect("Rule Name").as_str(), "rule_1");
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_metadata_execution() {
|
||||
let program_str = r#"
|
||||
default: ["stripe"," adyen"]
|
||||
|
||||
rule_1: ["stripe"]
|
||||
{
|
||||
"metadata_key" = "arbitrary meta"
|
||||
}
|
||||
"#;
|
||||
let mut meta_map = FxHashMap::default();
|
||||
meta_map.insert("metadata_key".to_string(), "arbitrary meta".to_string());
|
||||
let (_, program) = ast::parser::program::<DummyOutput>(program_str).expect("Program");
|
||||
let inp = inputs::BackendInput {
|
||||
metadata: Some(meta_map),
|
||||
payment: inputs::PaymentInput {
|
||||
amount: 32,
|
||||
card_bin: None,
|
||||
currency: enums::Currency::USD,
|
||||
authentication_type: Some(enums::AuthenticationType::NoThreeDs),
|
||||
capture_method: Some(enums::CaptureMethod::Automatic),
|
||||
business_country: Some(enums::Country::UnitedStatesOfAmerica),
|
||||
billing_country: Some(enums::Country::France),
|
||||
business_label: None,
|
||||
setup_future_usage: None,
|
||||
},
|
||||
payment_method: inputs::PaymentMethodInput {
|
||||
payment_method: Some(enums::PaymentMethod::PayLater),
|
||||
payment_method_type: Some(enums::PaymentMethodType::Affirm),
|
||||
card_network: None,
|
||||
},
|
||||
mandate: inputs::MandateData {
|
||||
mandate_acceptance_type: None,
|
||||
mandate_type: None,
|
||||
payment_type: None,
|
||||
},
|
||||
};
|
||||
|
||||
let backend = VirInterpreterBackend::<DummyOutput>::with_program(program).expect("Program");
|
||||
let result = backend.execute(inp).expect("Execution");
|
||||
assert_eq!(result.rule_name.expect("Rule Name").as_str(), "rule_1");
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_less_than_operator() {
|
||||
let program_str = r#"
|
||||
default: ["stripe", "adyen"]
|
||||
|
||||
rule_1: ["stripe"]
|
||||
{
|
||||
amount>=123
|
||||
}
|
||||
"#;
|
||||
let (_, program) = ast::parser::program::<DummyOutput>(program_str).expect("Program");
|
||||
let inp_greater = inputs::BackendInput {
|
||||
metadata: None,
|
||||
payment: inputs::PaymentInput {
|
||||
amount: 150,
|
||||
card_bin: None,
|
||||
currency: enums::Currency::USD,
|
||||
authentication_type: Some(enums::AuthenticationType::NoThreeDs),
|
||||
capture_method: Some(enums::CaptureMethod::Automatic),
|
||||
business_country: Some(enums::Country::UnitedStatesOfAmerica),
|
||||
billing_country: Some(enums::Country::France),
|
||||
business_label: None,
|
||||
setup_future_usage: None,
|
||||
},
|
||||
payment_method: inputs::PaymentMethodInput {
|
||||
payment_method: Some(enums::PaymentMethod::PayLater),
|
||||
payment_method_type: Some(enums::PaymentMethodType::Affirm),
|
||||
card_network: None,
|
||||
},
|
||||
mandate: inputs::MandateData {
|
||||
mandate_acceptance_type: None,
|
||||
mandate_type: None,
|
||||
payment_type: None,
|
||||
},
|
||||
};
|
||||
let mut inp_equal = inp_greater.clone();
|
||||
inp_equal.payment.amount = 123;
|
||||
let backend = VirInterpreterBackend::<DummyOutput>::with_program(program).expect("Program");
|
||||
let result_greater = backend.execute(inp_greater).expect("Execution");
|
||||
let result_equal = backend.execute(inp_equal).expect("Execution");
|
||||
assert_eq!(
|
||||
result_equal.rule_name.expect("Rule Name").as_str(),
|
||||
"rule_1"
|
||||
);
|
||||
assert_eq!(
|
||||
result_greater.rule_name.expect("Rule Name").as_str(),
|
||||
"rule_1"
|
||||
);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_greater_than_operator() {
|
||||
let program_str = r#"
|
||||
default: ["stripe", "adyen"]
|
||||
|
||||
rule_1: ["stripe"]
|
||||
{
|
||||
amount<=123
|
||||
}
|
||||
"#;
|
||||
let (_, program) = ast::parser::program::<DummyOutput>(program_str).expect("Program");
|
||||
let inp_lower = inputs::BackendInput {
|
||||
metadata: None,
|
||||
payment: inputs::PaymentInput {
|
||||
amount: 120,
|
||||
card_bin: None,
|
||||
currency: enums::Currency::USD,
|
||||
authentication_type: Some(enums::AuthenticationType::NoThreeDs),
|
||||
capture_method: Some(enums::CaptureMethod::Automatic),
|
||||
business_country: Some(enums::Country::UnitedStatesOfAmerica),
|
||||
billing_country: Some(enums::Country::France),
|
||||
business_label: None,
|
||||
setup_future_usage: None,
|
||||
},
|
||||
payment_method: inputs::PaymentMethodInput {
|
||||
payment_method: Some(enums::PaymentMethod::PayLater),
|
||||
payment_method_type: Some(enums::PaymentMethodType::Affirm),
|
||||
card_network: None,
|
||||
},
|
||||
mandate: inputs::MandateData {
|
||||
mandate_acceptance_type: None,
|
||||
mandate_type: None,
|
||||
payment_type: None,
|
||||
},
|
||||
};
|
||||
let mut inp_equal = inp_lower.clone();
|
||||
inp_equal.payment.amount = 123;
|
||||
let backend = VirInterpreterBackend::<DummyOutput>::with_program(program).expect("Program");
|
||||
let result_equal = backend.execute(inp_equal).expect("Execution");
|
||||
let result_lower = backend.execute(inp_lower).expect("Execution");
|
||||
assert_eq!(
|
||||
result_equal.rule_name.expect("Rule Name").as_str(),
|
||||
"rule_1"
|
||||
);
|
||||
assert_eq!(
|
||||
result_lower.rule_name.expect("Rule Name").as_str(),
|
||||
"rule_1"
|
||||
);
|
||||
}
|
||||
}
|
||||
126
crates/euclid/src/backend/vir_interpreter/types.rs
Normal file
126
crates/euclid/src/backend/vir_interpreter/types.rs
Normal file
@ -0,0 +1,126 @@
|
||||
use rustc_hash::{FxHashMap, FxHashSet};
|
||||
|
||||
use crate::{
|
||||
backend::inputs::BackendInput,
|
||||
dssa,
|
||||
types::{self, EuclidKey, EuclidValue, MetadataValue, NumValueRefinement, StrValue},
|
||||
};
|
||||
|
||||
#[derive(Debug, Clone, serde::Serialize, thiserror::Error)]
|
||||
pub enum VirInterpreterError {
|
||||
#[error("Error when lowering the program: {0:?}")]
|
||||
LoweringError(dssa::types::AnalysisError),
|
||||
}
|
||||
|
||||
pub struct Context {
|
||||
atomic_values: FxHashSet<EuclidValue>,
|
||||
numeric_values: FxHashMap<EuclidKey, EuclidValue>,
|
||||
}
|
||||
|
||||
impl Context {
|
||||
pub fn check_presence(&self, value: &EuclidValue) -> bool {
|
||||
let key = value.get_key();
|
||||
|
||||
match key.key_type() {
|
||||
types::DataType::MetadataValue => self.atomic_values.contains(value),
|
||||
types::DataType::StrValue => self.atomic_values.contains(value),
|
||||
types::DataType::EnumVariant => self.atomic_values.contains(value),
|
||||
types::DataType::Number => {
|
||||
let ctx_num_value = self
|
||||
.numeric_values
|
||||
.get(&key)
|
||||
.and_then(|value| value.get_num_value());
|
||||
|
||||
value.get_num_value().zip(ctx_num_value).map_or(
|
||||
false,
|
||||
|(program_value, ctx_value)| {
|
||||
let program_num = program_value.number;
|
||||
let ctx_num = ctx_value.number;
|
||||
|
||||
match &program_value.refinement {
|
||||
None => program_num == ctx_num,
|
||||
Some(NumValueRefinement::NotEqual) => ctx_num != program_num,
|
||||
Some(NumValueRefinement::GreaterThan) => ctx_num > program_num,
|
||||
Some(NumValueRefinement::GreaterThanEqual) => ctx_num >= program_num,
|
||||
Some(NumValueRefinement::LessThanEqual) => ctx_num <= program_num,
|
||||
Some(NumValueRefinement::LessThan) => ctx_num < program_num,
|
||||
}
|
||||
},
|
||||
)
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
pub fn from_input(input: BackendInput) -> Self {
|
||||
let payment = input.payment;
|
||||
let payment_method = input.payment_method;
|
||||
let meta_data = input.metadata;
|
||||
let payment_mandate = input.mandate;
|
||||
|
||||
let mut enum_values: FxHashSet<EuclidValue> =
|
||||
FxHashSet::from_iter([EuclidValue::PaymentCurrency(payment.currency)]);
|
||||
|
||||
if let Some(pm) = payment_method.payment_method {
|
||||
enum_values.insert(EuclidValue::PaymentMethod(pm));
|
||||
}
|
||||
|
||||
if let Some(pmt) = payment_method.payment_method_type {
|
||||
enum_values.insert(EuclidValue::PaymentMethodType(pmt));
|
||||
}
|
||||
|
||||
if let Some(met) = meta_data {
|
||||
for (key, value) in met.into_iter() {
|
||||
enum_values.insert(EuclidValue::Metadata(MetadataValue { key, value }));
|
||||
}
|
||||
}
|
||||
|
||||
if let Some(at) = payment.authentication_type {
|
||||
enum_values.insert(EuclidValue::AuthenticationType(at));
|
||||
}
|
||||
|
||||
if let Some(capture_method) = payment.capture_method {
|
||||
enum_values.insert(EuclidValue::CaptureMethod(capture_method));
|
||||
}
|
||||
|
||||
if let Some(country) = payment.business_country {
|
||||
enum_values.insert(EuclidValue::BusinessCountry(country));
|
||||
}
|
||||
|
||||
if let Some(country) = payment.billing_country {
|
||||
enum_values.insert(EuclidValue::BillingCountry(country));
|
||||
}
|
||||
if let Some(card_bin) = payment.card_bin {
|
||||
enum_values.insert(EuclidValue::CardBin(StrValue { value: card_bin }));
|
||||
}
|
||||
if let Some(business_label) = payment.business_label {
|
||||
enum_values.insert(EuclidValue::BusinessLabel(StrValue {
|
||||
value: business_label,
|
||||
}));
|
||||
}
|
||||
if let Some(setup_future_usage) = payment.setup_future_usage {
|
||||
enum_values.insert(EuclidValue::SetupFutureUsage(setup_future_usage));
|
||||
}
|
||||
if let Some(payment_type) = payment_mandate.payment_type {
|
||||
enum_values.insert(EuclidValue::PaymentType(payment_type));
|
||||
}
|
||||
if let Some(mandate_type) = payment_mandate.mandate_type {
|
||||
enum_values.insert(EuclidValue::MandateType(mandate_type));
|
||||
}
|
||||
if let Some(mandate_acceptance_type) = payment_mandate.mandate_acceptance_type {
|
||||
enum_values.insert(EuclidValue::MandateAcceptanceType(mandate_acceptance_type));
|
||||
}
|
||||
|
||||
let numeric_values: FxHashMap<EuclidKey, EuclidValue> = FxHashMap::from_iter([(
|
||||
EuclidKey::PaymentAmount,
|
||||
EuclidValue::PaymentAmount(types::NumValue {
|
||||
number: payment.amount,
|
||||
refinement: None,
|
||||
}),
|
||||
)]);
|
||||
|
||||
Self {
|
||||
atomic_values: enum_values,
|
||||
numeric_values,
|
||||
}
|
||||
}
|
||||
}
|
||||
Reference in New Issue
Block a user