use crate::events::AppServerRpcTransport;
use crate::events::CodexRuntimeMetadata;
use codex_app_server_protocol::ClientRequest;
use codex_app_server_protocol::ClientResponse;
use codex_app_server_protocol::InitializeParams;
use codex_app_server_protocol::RequestId;
use codex_app_server_protocol::ServerNotification;
use codex_plugin::PluginTelemetryMetadata;
use codex_protocol::protocol::SkillScope;
use codex_protocol::protocol::SubAgentSource;
use serde::Serialize;
use std::path::PathBuf;

#[derive(Clone)]
pub struct TrackEventsContext {
    pub model_slug: String,
    pub thread_id: String,
    pub turn_id: String,
}

pub fn build_track_events_context(
    model_slug: String,
    thread_id: String,
    turn_id: String,
) -> TrackEventsContext {
    TrackEventsContext {
        model_slug,
        thread_id,
        turn_id,
    }
}

#[derive(Clone, Debug)]
pub struct SkillInvocation {
    pub skill_name: String,
    pub skill_scope: SkillScope,
    pub skill_path: PathBuf,
    pub invocation_type: InvocationType,
}

#[derive(Clone, Copy, Debug, Serialize)]
#[serde(rename_all = "lowercase")]
pub enum InvocationType {
    Explicit,
    Implicit,
}

pub struct AppInvocation {
    pub connector_id: Option<String>,
    pub app_name: Option<String>,
    pub invocation_type: Option<InvocationType>,
}

#[derive(Clone)]
pub struct SubAgentThreadStartedInput {
    pub thread_id: String,
    pub product_client_id: String,
    pub client_name: String,
    pub client_version: String,
    pub model: String,
    pub ephemeral: bool,
    pub subagent_source: SubAgentSource,
    pub created_at: u64,
}

#[allow(dead_code)]
pub(crate) enum AnalyticsFact {
    Initialize {
        connection_id: u64,
        params: InitializeParams,
        product_client_id: String,
        runtime: CodexRuntimeMetadata,
        rpc_transport: AppServerRpcTransport,
    },
    Request {
        connection_id: u64,
        request_id: RequestId,
        request: Box<ClientRequest>,
    },
    Response {
        connection_id: u64,
        response: Box<ClientResponse>,
    },
    Notification(Box<ServerNotification>),
    // Facts that do not naturally exist on the app-server protocol surface, or
    // would require non-trivial protocol reshaping on this branch.
    Custom(CustomAnalyticsFact),
}

pub(crate) enum CustomAnalyticsFact {
    SubAgentThreadStarted(SubAgentThreadStartedInput),
    SkillInvoked(SkillInvokedInput),
    AppMentioned(AppMentionedInput),
    AppUsed(AppUsedInput),
    PluginUsed(PluginUsedInput),
    PluginStateChanged(PluginStateChangedInput),
}

pub(crate) struct SkillInvokedInput {
    pub tracking: TrackEventsContext,
    pub invocations: Vec<SkillInvocation>,
}

pub(crate) struct AppMentionedInput {
    pub tracking: TrackEventsContext,
    pub mentions: Vec<AppInvocation>,
}

pub(crate) struct AppUsedInput {
    pub tracking: TrackEventsContext,
    pub app: AppInvocation,
}

pub(crate) struct PluginUsedInput {
    pub tracking: TrackEventsContext,
    pub plugin: PluginTelemetryMetadata,
}

pub(crate) struct PluginStateChangedInput {
    pub plugin: PluginTelemetryMetadata,
    pub state: PluginState,
}

#[derive(Clone, Copy)]
pub(crate) enum PluginState {
    Installed,
    Uninstalled,
    Enabled,
    Disabled,
}