[package]
name = "kon-transcription"
version = "0.1.0"
edition = "2021"
description = "Speech-to-text engine wrappers, model management, and inference concurrency for Kon"
build = "build.rs"

[features]
# Whisper backend (direct whisper-rs). Default on — gating it exists so
# a future Windows non-AVX2 build, or a cloud-only ASR configuration,
# can drop whisper-rs-sys entirely per brief item #13. Disabling this
# feature also drops the WhisperRsBackend module and the load_whisper
# entry point.
#
# `whisper-vulkan` is a separate feature so a non-Vulkan target (Android
# without GPU drivers, a CPU-only Windows build) can pull in whisper-rs
# but skip the Vulkan backend. Build CPU-only with:
#   cargo build -p kon-transcription --no-default-features --features whisper
default = ["whisper", "whisper-vulkan"]
whisper = ["dep:whisper-rs", "dep:num_cpus"]
whisper-vulkan = ["whisper-rs?/vulkan"]

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

# Parakeet via ONNX. Whisper is handled directly via whisper-rs below.
transcribe-rs = { version = "0.3", default-features = false, features = ["onnx"] }

# Async runtime for spawn_blocking
tokio = { version = "1", features = ["rt", "sync"] }

# Model downloads
reqwest = { version = "0.12", default-features = false, features = ["rustls-tls", "stream"] }
futures-util = "0.3"

# Download integrity verification
sha2 = "0.10"

# Gated behind the `whisper` feature (see [features] above). Vulkan is
# additive via the `whisper-vulkan` feature so non-GPU targets can drop it.
whisper-rs = { version = "0.16", default-features = false, optional = true }

# Direct whisper-rs backend (WhisperRsBackend): thread pool sizing.
# Gated alongside whisper-rs since no other code in this crate needs it.
num_cpus = { version = "1", optional = true }

# Typed error enum used by WhisperRsBackend + elsewhere. Kept
# unconditional because it is a derive-macro crate with negligible
# build cost.
thiserror = "2"

# Structured logging at backend boundaries (observability for initial_prompt flow).
tracing = "0.1"

[dev-dependencies]
# TcpListener fixture for the download resume tests (mirrors kon-llm).
tokio = { version = "1", features = ["rt", "sync", "net", "io-util", "macros"] }
tempfile = "3"
