# Component Imports SIP: Proposed V2 Manifest Changes

/// Component import
#[derive(Clone, Debug, Serialize, Deserialize)]
#[serde(deny_unknown_fields)]
pub struct ComponentImport {
    /// `component = ...`
    pub component: ComponentSpec,
    /// `export = "x-y"` OR `export = "x:y/z"`
    pub export: Option<ExportKey>,
}

pub enum ImportSource {
        
}

/// Component import key (e.g. "foo-bar" or "foo:bar/baz@0.1.0")
#[derive(Clone, Debug, PartialEq, Eq, Hash, Serialize, Deserialize)]
#[serde(deny_unknown_fields, untagged)]
pub enum ImportKey {
    /// "foo:bar/baz@0.1.0"
    InterfaceId(String),
    /// "foo-bar"
    KebabId(KebabId),
}

/// Component export key (e.g. "foo-bar" or "foo:bar/baz@0.1.0")
#[derive(Clone, Debug, PartialEq, Eq, Hash, Serialize, Deserialize)]
#[serde(deny_unknown_fields, untagged)]
pub enum ExportKey {
    /// "foo:bar/baz@0.1.0"
    InterfaceId(String),
    /// "foo-bar"
    KebabId(KebabId),
}

/// Component definition
#[derive(Clone, Debug, Serialize, Deserialize)]
#[serde(deny_unknown_fields)]
pub struct Component {
    ...
    /// Component imports
    #[serde(default, skip_serializing_if = "Map::is_empty")]
    pub imports: Map<ImportKey, ComponentImport>,
}

# Example

[component."service"]
source = "http-auth-middlware.wasm"

[component."service".imports."wasi:http/incoming-handler"]
component = { source = "http-auth-middleware.wasm" }
export = "wasi:http/incoming-handler"

[component."service".imports."wasi:http/incoming-handler".component]
source = "..."

# Normalization

[component."calculator"]
source = "calculator.wasm"