[package]
name = "op-tax"
version.workspace = true
edition.workspace = true
rust-version.workspace = true
license.workspace = true
repository.workspace = true
description = "OpenPay tax calculation: pluggable adapter surface (Avalara, Stripe Tax, CCH SureTax, Vertex, TaxJar) plus a native rate-table backend covering US sales tax, EU/UK/AU VAT, GST (CA/IN/SG/NZ), excise, reverse-charge, and exemption certificates. Economic-nexus monitoring and withholding hooks included."

[dependencies]
op-core = { path = "../op-core" }

# Async-first surface: every commercial backend (Avalara, Stripe Tax,
# CCH SureTax, Vertex, TaxJar) is a RESTful HTTPS API, and the native
# calculator is async-trait too so callers can swap freely. async-trait
# keeps the TaxCalculator trait dyn-compatible until the dyn-safe
# native variant lands cleanly post-1.95.
async-trait = "0.1"

# HTTP client for commercial backends. rustls-tls keeps the build
# OpenSSL-free; json bundles serde_json roundtrips. We omit blocking
# because every backend here is async-first.
# reqwest 0.13 moved RequestBuilder::form behind the "form" feature.
reqwest = { version = "0.13", default-features = false, features = ["rustls", "json", "form"] }
tokio = { workspace = true }

serde = { workspace = true }
serde_json = { workspace = true }

# CBOR for the on-disk rate-table snapshot. ciborium is the pure-Rust
# implementation already used by op-screening for its sanctions index.
ciborium = "0.2"

# Tax math must be exact. rust_decimal carries 28-29 significant digits
# of decimal precision — well beyond the 4-decimal places any real-world
# jurisdiction publishes — and supports the round-half-up rounding mode
# every tax authority specifies.
rust_decimal = { version = "1", features = ["serde"] }

# Calendar dates for transaction_date / certificate validity / nexus
# windows. Spec-mandated dependency.
chrono = { version = "0.4", default-features = false, features = ["std", "clock", "serde"] }

thiserror = { workspace = true }
tracing = { workspace = true }

[dev-dependencies]
# Async mock-server for adapter round-trip tests. Same version as op-bnpl.
wiremock = "0.6"
tokio = { workspace = true, features = ["rt", "macros", "test-util"] }
proptest = { workspace = true }