use serde::{Deserialize, Serialize};

#[derive(Clone, Debug, Serialize, Deserialize, PartialEq, Eq)]
#[serde(rename_all = "snake_case")]
pub enum CreationAudioGenerationKind {
    BackgroundMusic,
    SoundEffect,
}

#[derive(Clone, Debug, Serialize, Deserialize, PartialEq, Eq)]
#[serde(rename_all = "camelCase")]
pub struct CreationAudioAsset {
    pub task_id: String,
    pub provider: String,
    #[serde(default)]
    pub asset_object_id: Option<String>,
    #[serde(default)]
    pub asset_kind: Option<String>,
    pub audio_src: String,
    #[serde(default)]
    pub prompt: Option<String>,
    #[serde(default)]
    pub title: Option<String>,
    #[serde(default)]
    pub updated_at: Option<String>,
}

#[derive(Clone, Debug, Serialize, Deserialize, PartialEq, Eq)]
#[serde(rename_all = "camelCase")]
pub struct CreateBackgroundMusicRequest {
    pub prompt: String,
    pub title: String,
    #[serde(default)]
    pub tags: Option<String>,
    #[serde(default)]
    pub model: Option<String>,
}

#[derive(Clone, Debug, Serialize, Deserialize, PartialEq, Eq)]
#[serde(rename_all = "camelCase")]
pub struct CreateSoundEffectRequest {
    pub prompt: String,
    #[serde(default)]
    pub duration: Option<u8>,
    #[serde(default)]
    pub seed: Option<u64>,
}

#[derive(Clone, Debug, Serialize, Deserialize, PartialEq, Eq)]
#[serde(rename_all = "camelCase")]
pub struct AudioGenerationTaskResponse {
    pub kind: CreationAudioGenerationKind,
    pub task_id: String,
    pub provider: String,
    pub status: String,
}

#[derive(Clone, Debug, Serialize, Deserialize, PartialEq, Eq)]
#[serde(rename_all = "snake_case")]
pub enum CreationAudioStoragePrefix {
    PuzzleAssets,
    #[serde(rename = "match3d_assets")]
    Match3DAssets,
    CustomWorldScenes,
}

#[derive(Clone, Debug, Serialize, Deserialize, PartialEq, Eq)]
#[serde(rename_all = "camelCase")]
pub struct PublishGeneratedAudioAssetRequest {
    pub entity_kind: String,
    pub entity_id: String,
    pub slot: String,
    pub asset_kind: String,
    #[serde(default)]
    pub profile_id: Option<String>,
    #[serde(default)]
    pub storage_prefix: Option<CreationAudioStoragePrefix>,
}

#[derive(Clone, Debug, Serialize, Deserialize, PartialEq, Eq)]
#[serde(rename_all = "camelCase")]
pub struct GeneratedAudioAssetResponse {
    pub kind: CreationAudioGenerationKind,
    pub task_id: String,
    pub provider: String,
    pub status: String,
    #[serde(default)]
    pub asset_object_id: Option<String>,
    #[serde(default)]
    pub asset_kind: Option<String>,
    #[serde(default)]
    pub audio_src: Option<String>,
}

#[cfg(test)]
mod tests {
    use super::*;
    use serde_json::json;

    #[test]
    fn creation_audio_contracts_use_camel_case_fields() {
        let request = PublishGeneratedAudioAssetRequest {
            entity_kind: "match3d_item".to_string(),
            entity_id: "match3d-item-1".to_string(),
            slot: "click_sound".to_string(),
            asset_kind: "match3d_click_sound".to_string(),
            profile_id: Some("profile-1".to_string()),
            storage_prefix: Some(CreationAudioStoragePrefix::Match3DAssets),
        };
        let payload = serde_json::to_value(request).expect("request should serialize");
        assert_eq!(payload["entityKind"], json!("match3d_item"));
        assert_eq!(payload["storagePrefix"], json!("match3d_assets"));

        let asset = CreationAudioAsset {
            task_id: "task-1".to_string(),
            provider: "vector-engine-suno".to_string(),
            asset_object_id: Some("assetobj_1".to_string()),
            asset_kind: Some("puzzle_background_music".to_string()),
            audio_src: "/generated-puzzle-assets/a.mp3".to_string(),
            prompt: Some("轻快音乐".to_string()),
            title: Some("拼图音乐".to_string()),
            updated_at: Some("2026-05-11T00:00:00Z".to_string()),
        };
        let payload = serde_json::to_value(asset).expect("asset should serialize");
        assert_eq!(payload["taskId"], json!("task-1"));
        assert_eq!(payload["audioSrc"], json!("/generated-puzzle-assets/a.mp3"));
    }
}