//! Crate errors: container daemon failures and `devcontainer.json` parsing failures.

use std::{path::PathBuf, time::Duration};

use bollard::errors::Error as BollardError;

#[derive(Debug, thiserror::Error)]
pub enum ContainerError {
    /// The daemon is unreachable, or rejected a request.
    #[error("container daemon request failed: {source}")]
    Request {
        #[from]
        source: BollardError,
    },

    /// An operation exceeded its timeout.
    #[error("`{operation}` timed out after {timeout:?}")]
    Timeout {
        operation: String,
        timeout: Duration,
    },

    /// The image build failed.
    #[error("image build failed: {message}")]
    Build { message: String },

    /// The daemon replied with something other than what was expected.
    #[error("{0}")]
    Unexpected(String),
}

#[derive(Debug, thiserror::Error)]
pub enum ParseError {
    #[error("failed to read devcontainer file `{path}`: {source}")]
    Read {
        path: PathBuf,
        source: std::io::Error,
    },

    #[error("invalid devcontainer JSON in `{path}`: {source}")]
    Json {
        path: PathBuf,
        source: serde_json::Error,
    },

    #[error("container file `{0}` does not exist or is not a regular file")]
    ContainerFileNotFound(PathBuf),

    #[error("devcontainer file `{0}` declares neither `image` nor `build`")]
    MissingImageOrBuild(PathBuf),

    #[error("the devcontainer file path has no parent directory: `{0}`")]
    InvalidDevContainerPath(PathBuf),
}