use clap::{Parser, Subcommand};

#[derive(Parser)]
#[command(name = "momentry")]
#[command(about = "Digital asset management system with video analysis and RAG")]
#[command(version = env!("BUILD_VERSION"))]
pub struct Cli {
    #[command(subcommand)]
    pub command: Commands,
}

#[derive(Subcommand)]
pub enum Commands {
    /// Register a video file
    Register {
        /// Video file path or URL
        path: String,
    },
    /// Process video (generate all JSON files)
    Process {
        /// UUID or path
        target: String,
        /// Modules to process (comma separated: asr,cut,asrx,yolo,ocr,face,pose,story,caption)
        /// If not specified, processes all modules
        #[arg(short, long, value_delimiter = ',')]
        modules: Option<Vec<String>>,
        /// Modules to process via cloud (comma separated)
        /// Example: --cloud asr,yolo
        #[arg(long, value_delimiter = ',')]
        cloud: Option<Vec<String>>,
        /// Force reprocess even if JSON exists (skip completeness check)
        #[arg(long, default_value = "false")]
        force: bool,
        /// Resume from last checkpoint if processing was interrupted
        #[arg(long, default_value = "false")]
        resume: bool,
    },
    /// Generate chunks and store in database
    Chunk {
        /// UUID
        uuid: String,
    },
    /// Generate story for cut scenes
    Story {
        /// UUID
        uuid: String,
    },
    /// Vectorize chunks
    Vectorize {
        /// UUID (or 'all' for all)
        uuid: String,
    },
    /// Play video with overlays
    Play {
        /// Video path or UUID
        target: String,
    },
    /// Start watching directories
    Watch {
        /// Directories to watch (comma separated)
        directories: Option<String>,
    },
    /// Check system resources and recommend processing strategy
    System {
        /// Show detailed GPU info (NVIDIA/MPS)
        #[arg(long)]
        gpu: bool,
    },
    /// Start API server
    Server {
        /// Host
        #[arg(long, default_value = "127.0.0.1")]
        host: String,
        /// Port (defaults to MOMENTRY_SERVER_PORT env var, or 3002 for production)
        #[arg(long)]
        port: Option<u16>,
    },
    /// Start job worker
    Worker {
        /// Max concurrent processors
        #[arg(long)]
        max_concurrent: Option<usize>,
        /// Poll interval in seconds
        #[arg(long)]
        poll_interval: Option<u64>,
        /// Batch size
        #[arg(long)]
        batch_size: Option<i32>,
    },
    /// Query using RAG
    Query {
        /// Query text
        query: String,
    },
    /// Lookup UUID from path
    Lookup {
        /// File path
        path: String,
    },
    /// Resolve path from UUID
    Resolve {
        /// UUID
        uuid: String,
    },
    /// Generate thumbnails for videos
    Thumbnails {
        /// UUID (optional, generates for all if not specified)
        uuid: Option<String>,
        /// Number of thumbnails per video
        #[arg(short, long, default_value = "6")]
        count: u32,
    },
    /// Show storage status report
    Status {
        /// UUID (optional, shows all if not specified)
        uuid: Option<String>,
    },
    /// Manage output backups
    Backup {
        /// Action: list, cleanup
        action: String,
        /// Days to keep (for cleanup)
        days: Option<u32>,
    },
    /// Manage API keys
    ApiKey {
        /// Action: create, list, validate, revoke, rotate, stats
        #[arg(value_enum)]
        action: ApiKeyAction,
        /// Key name (for create)
        name: Option<String>,
        /// Key type (system, user, service, integration, emergency)
        #[arg(long)]
        key_type: Option<String>,
        /// TTL in days (for create)
        #[arg(long)]
        ttl: Option<i64>,
        /// API key to validate/revoke
        #[arg(long)]
        key: Option<String>,
    },
    /// Manage Gitea API tokens
    Gitea {
        /// Action: create, list, delete, verify
        #[arg(value_enum)]
        action: GiteaAction,
        /// Gitea username
        #[arg(long)]
        username: Option<String>,
        /// Gitea password (for create/list/delete)
        #[arg(long)]
        password: Option<String>,
        /// Token name (for create/delete)
        #[arg(long)]
        token_name: Option<String>,
        /// Token scopes (comma separated: read:repository,write:issue)
        #[arg(long)]
        scopes: Option<String>,
    },
    /// Manage n8n API keys
    N8n {
        /// Action: create, list, delete, verify
        #[arg(value_enum)]
        action: N8nAction,
        /// n8n API key (for create/list/delete)
        #[arg(long)]
        api_key: Option<String>,
        /// API key label (for create/delete)
        #[arg(long)]
        label: Option<String>,
        /// Expiration days (for create)
        #[arg(long)]
        expires_in_days: Option<i64>,
    },
}

#[derive(clap::ValueEnum, Clone, Debug)]
pub enum ApiKeyAction {
    Create,
    List,
    Validate,
    Revoke,
    Rotate,
    Stats,
}

#[derive(clap::ValueEnum, Clone, Debug)]
pub enum GiteaAction {
    Create,
    List,
    Delete,
    Verify,
}

#[derive(clap::ValueEnum, Clone, Debug)]
pub enum N8nAction {
    Create,
    List,
    Delete,
    Verify,
}

/// Parse key type from string
pub fn parse_key_type(s: Option<&str>) -> momentry_core::core::api_key::ApiKeyType {
    use momentry_core::core::api_key::ApiKeyType;

    match s.map(|s| s.to_lowercase()).as_deref() {
        Some("system") => ApiKeyType::System,
        Some("user") => ApiKeyType::User,
        Some("service") => ApiKeyType::Service,
        Some("integration") => ApiKeyType::Integration,
        Some("emergency") => ApiKeyType::Emergency,
        _ => ApiKeyType::User,
    }
}