use axum::{
    Router,
    extract::{DefaultBodyLimit, FromRef},
    middleware,
    routing::{get, post},
};

use crate::{
    auth::require_bearer_auth,
    puzzle::{
        advance_puzzle_next_level, claim_puzzle_work_point_incentive, create_puzzle_agent_session,
        delete_puzzle_work, drag_puzzle_piece_or_group, execute_puzzle_agent_action,
        generate_puzzle_onboarding_work, get_puzzle_agent_session, get_puzzle_gallery_detail,
        get_puzzle_run, get_puzzle_work_detail, get_puzzle_works, list_puzzle_gallery,
        put_puzzle_work, record_puzzle_gallery_like, remix_puzzle_gallery_work,
        save_puzzle_onboarding_work, start_puzzle_run, stream_puzzle_agent_message,
        submit_puzzle_agent_message, submit_puzzle_leaderboard, swap_puzzle_pieces,
        update_puzzle_run_pause, use_puzzle_runtime_prop,
    },
    state::{AppState, PuzzleApiState},
};

const PUZZLE_REFERENCE_IMAGE_BODY_LIMIT_BYTES: usize = 12 * 1024 * 1024;

pub fn router(state: AppState) -> Router<AppState> {
    // 中文注释：拼图 handler 只接收 PuzzleApiState，鉴权层仍使用全局 AppState。
    Router::new()
        .route(
            "/api/runtime/puzzle/agent/sessions",
            post(create_puzzle_agent_session)
                // 中文注释：拼图表单会携带单张参考图 Data URL，需只给该写入入口放宽 body 上限。
                .layer(DefaultBodyLimit::max(
                    PUZZLE_REFERENCE_IMAGE_BODY_LIMIT_BYTES,
                ))
                .route_layer(middleware::from_fn_with_state(
                    state.clone(),
                    require_bearer_auth,
                )),
        )
        .route(
            "/api/runtime/puzzle/agent/sessions/{session_id}",
            get(get_puzzle_agent_session).route_layer(middleware::from_fn_with_state(
                state.clone(),
                require_bearer_auth,
            )),
        )
        .route(
            "/api/runtime/puzzle/agent/sessions/{session_id}/messages",
            post(submit_puzzle_agent_message).route_layer(middleware::from_fn_with_state(
                state.clone(),
                require_bearer_auth,
            )),
        )
        .route(
            "/api/runtime/puzzle/agent/sessions/{session_id}/messages/stream",
            post(stream_puzzle_agent_message).route_layer(middleware::from_fn_with_state(
                state.clone(),
                require_bearer_auth,
            )),
        )
        .route(
            "/api/runtime/puzzle/agent/sessions/{session_id}/actions",
            post(execute_puzzle_agent_action)
                // 中文注释：生成草稿/重新出图会复用 referenceImageSrc，避免默认 2MB JSON limit 拦截。
                .layer(DefaultBodyLimit::max(
                    PUZZLE_REFERENCE_IMAGE_BODY_LIMIT_BYTES,
                ))
                .route_layer(middleware::from_fn_with_state(
                    state.clone(),
                    require_bearer_auth,
                )),
        )
        .route(
            "/api/runtime/puzzle/onboarding/generate",
            post(generate_puzzle_onboarding_work).layer(DefaultBodyLimit::max(
                PUZZLE_REFERENCE_IMAGE_BODY_LIMIT_BYTES,
            )),
        )
        .route(
            "/api/runtime/puzzle/onboarding/save",
            post(save_puzzle_onboarding_work).route_layer(middleware::from_fn_with_state(
                state.clone(),
                require_bearer_auth,
            )),
        )
        .route(
            "/api/runtime/puzzle/works",
            get(get_puzzle_works).route_layer(middleware::from_fn_with_state(
                state.clone(),
                require_bearer_auth,
            )),
        )
        .route(
            "/api/runtime/puzzle/works/{profile_id}",
            get(get_puzzle_work_detail)
                .put(put_puzzle_work)
                .delete(delete_puzzle_work)
                .route_layer(middleware::from_fn_with_state(
                    state.clone(),
                    require_bearer_auth,
                )),
        )
        .route(
            "/api/runtime/puzzle/works/{profile_id}/point-incentive/claim",
            post(claim_puzzle_work_point_incentive).route_layer(middleware::from_fn_with_state(
                state.clone(),
                require_bearer_auth,
            )),
        )
        .route("/api/runtime/puzzle/gallery", get(list_puzzle_gallery))
        .route(
            "/api/runtime/puzzle/gallery/{profile_id}",
            get(get_puzzle_gallery_detail),
        )
        .route(
            "/api/runtime/puzzle/gallery/{profile_id}/remix",
            post(remix_puzzle_gallery_work).route_layer(middleware::from_fn_with_state(
                state.clone(),
                require_bearer_auth,
            )),
        )
        .route(
            "/api/runtime/puzzle/gallery/{profile_id}/like",
            post(record_puzzle_gallery_like).route_layer(middleware::from_fn_with_state(
                state.clone(),
                require_bearer_auth,
            )),
        )
        .route(
            "/api/runtime/puzzle/runs",
            post(start_puzzle_run).route_layer(middleware::from_fn_with_state(
                state.clone(),
                require_bearer_auth,
            )),
        )
        .route(
            "/api/runtime/puzzle/runs/{run_id}",
            get(get_puzzle_run).route_layer(middleware::from_fn_with_state(
                state.clone(),
                require_bearer_auth,
            )),
        )
        .route(
            "/api/runtime/puzzle/runs/{run_id}/swap",
            post(swap_puzzle_pieces).route_layer(middleware::from_fn_with_state(
                state.clone(),
                require_bearer_auth,
            )),
        )
        .route(
            "/api/runtime/puzzle/runs/{run_id}/drag",
            post(drag_puzzle_piece_or_group).route_layer(middleware::from_fn_with_state(
                state.clone(),
                require_bearer_auth,
            )),
        )
        .route(
            "/api/runtime/puzzle/runs/{run_id}/next-level",
            post(advance_puzzle_next_level).route_layer(middleware::from_fn_with_state(
                state.clone(),
                require_bearer_auth,
            )),
        )
        .route(
            "/api/runtime/puzzle/runs/{run_id}/pause",
            post(update_puzzle_run_pause).route_layer(middleware::from_fn_with_state(
                state.clone(),
                require_bearer_auth,
            )),
        )
        .route(
            "/api/runtime/puzzle/runs/{run_id}/props",
            post(use_puzzle_runtime_prop).route_layer(middleware::from_fn_with_state(
                state.clone(),
                require_bearer_auth,
            )),
        )
        .route(
            "/api/runtime/puzzle/runs/{run_id}/leaderboard",
            post(submit_puzzle_leaderboard).route_layer(middleware::from_fn_with_state(
                state.clone(),
                require_bearer_auth,
            )),
        )
        .with_state(PuzzleApiState::from_ref(&state))
        .with_state(state)
}