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use super::common::EmbedableFile;
use std::fmt::Debug;

/// A file embedded into the binary.
///
///
/// `rust-embed-for-web` changes which type of file you get based on whether
/// it's a debug or release build. You should likely not try to interface
/// directly with this type, and instead use the `EmbedableFile` trait.
pub struct EmbeddedFile {
    name: &'static str,
    data: &'static [u8],
    data_gzip: Option<&'static [u8]>,
    data_br: Option<&'static [u8]>,
    hash: &'static str,
    etag: &'static str,
    last_modified: Option<&'static str>,
    last_modified_timestamp: Option<i64>,
    mime_type: Option<&'static str>,
}

impl EmbedableFile for EmbeddedFile {
    type Data = &'static [u8];
    type Meta = &'static str;

    fn name(&self) -> Self::Meta {
        self.name
    }

    fn data(&self) -> Self::Data {
        self.data
    }

    fn data_gzip(&self) -> Option<Self::Data> {
        self.data_gzip
    }

    fn data_br(&self) -> Option<Self::Data> {
        self.data_br
    }

    fn last_modified(&self) -> Option<Self::Meta> {
        self.last_modified
    }

    fn last_modified_timestamp(&self) -> Option<i64> {
        self.last_modified_timestamp
    }

    fn hash(&self) -> Self::Meta {
        self.hash
    }

    fn etag(&self) -> Self::Meta {
        self.etag
    }

    fn mime_type(&self) -> Option<Self::Meta> {
        self.mime_type
    }
}

impl EmbeddedFile {
    #[doc(hidden)]
    #[allow(clippy::too_many_arguments)]
    /// This is used internally in derived code to create embedded file objects.
    /// You don't want to manually use this function!
    pub fn __internal_make(
        // Make sure that the order of these parameters is correct in respect to
        // the file contents! And if you are changing or reordering any of
        // these, make sure to update the corresponding call in `impl`
        name: &'static str,
        data: &'static [u8],
        data_gzip: Option<&'static [u8]>,
        data_br: Option<&'static [u8]>,
        hash: &'static str,
        etag: &'static str,
        last_modified: Option<&'static str>,
        last_modified_timestamp: Option<i64>,
        mime_type: Option<&'static str>,
    ) -> EmbeddedFile {
        EmbeddedFile {
            name,
            data,
            data_gzip,
            data_br,
            hash,
            etag,
            last_modified,
            last_modified_timestamp,
            mime_type,
        }
    }
}

impl Debug for EmbeddedFile {
    fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
        f.debug_struct("EmbeddedFile")
            .field("name", &self.name)
            .field("hash", &self.hash)
            .field("last_modified", &self.last_modified())
            .field("mime_type", &self.mime_type)
            .finish()
    }
}