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use std::path::PathBuf;

use crate::{file, file::Metadata, Source};

/// Instantiation
impl Metadata {
    /// Return metadata indicating the source of a [`File`][crate::File] is from an API user.
    pub fn api() -> Self {
        file::Metadata {
            path: None,
            source: Source::Api,
            level: 0,
            trust: gix_sec::Trust::Full,
        }
    }

    /// Return metadata as derived from the given `path` at `source`, which will also be used to derive the trust level
    /// by checking its ownership.
    pub fn try_from_path(path: impl Into<PathBuf>, source: Source) -> std::io::Result<Self> {
        let path = path.into();
        gix_sec::Trust::from_path_ownership(&path).map(|trust| Metadata {
            path: path.into(),
            source,
            level: 0,
            trust,
        })
    }

    /// Set the trust level of this instance to the given `trust` and return it.
    ///
    /// Useful in conjunction with `Metadata::from(source)`.
    pub fn with(mut self, trust: gix_sec::Trust) -> Self {
        self.trust = trust;
        self
    }

    /// Set the metadata to be located at the given `path`.
    pub fn at(mut self, path: impl Into<PathBuf>) -> Self {
        self.path = Some(path.into());
        self
    }
}

impl Default for Metadata {
    fn default() -> Self {
        Metadata::api()
    }
}

impl From<Source> for Metadata {
    fn from(source: Source) -> Self {
        file::Metadata {
            path: None,
            source,
            level: 0,
            trust: gix_sec::Trust::Full,
        }
    }
}