qubit-mime 0.5.2

MIME type detection utilities for Rust based on filename glob rules and content magic
Documentation 
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/*******************************************************************************
 *
 *    Copyright (c) 2026 Haixing Hu.
 *
 *    SPDX-License-Identifier: Apache-2.0
 *
 *    Licensed under the Apache License, Version 2.0.
 *
 ******************************************************************************/
//! Provider for the built-in `ffprobe` media stream classifier.

use crate::{
    FfprobeCommandMediaStreamClassifier,
    MediaStreamClassifier,
    MimeConfig,
    ProviderAvailability,
    ProviderCreateError,
    ProviderDescriptor,
    ProviderRegistryError,
    ServiceProvider,
};

use super::{
    MediaStreamClassifierAvailability,
    MediaStreamClassifierSpec,
};

/// Provider for the built-in FFprobe-backed media stream classifier.
#[derive(Debug, Clone, Copy, Default)]
pub struct FfprobeCommandMediaStreamClassifierProvider;

impl ServiceProvider<MediaStreamClassifierSpec> for FfprobeCommandMediaStreamClassifierProvider {
    /// Gets FFprobe classifier metadata.
    fn descriptor(&self) -> Result<ProviderDescriptor, ProviderRegistryError> {
        let descriptor = ProviderDescriptor::new("ffprobe")
            .expect("built-in FFprobe classifier provider id should be valid")
            .with_aliases(&["ffprobe-command", "ffprobe-command-media-stream-classifier"])
            .expect("built-in FFprobe classifier aliases should be valid")
            .with_priority(10);
        Ok(descriptor)
    }

    /// Reports the provider as available.
    ///
    /// The classifier itself handles command execution lazily so temporary
    /// `PATH` changes and best-effort refinement do not make registry creation
    /// environment-sensitive.
    fn availability(&self, _config: &MimeConfig) -> MediaStreamClassifierAvailability {
        ProviderAvailability::Available
    }

    /// Creates an FFprobe-backed classifier.
    fn create_box(
        &self,
        _config: &MimeConfig,
    ) -> Result<Box<dyn MediaStreamClassifier>, ProviderCreateError> {
        Ok(Box::new(FfprobeCommandMediaStreamClassifier::new()))
    }
}