use axum::Extension;
use axum::extract::{FromRef, Json, Path, Query, State};
use serde::Deserialize;
use utoipa::IntoParams;
use uuid::Uuid;

use erp_core::error::AppError;
use erp_core::rbac::require_permission;
use erp_core::types::{ApiResponse, PaginatedResponse, TenantContext};

use crate::dto::dialysis_dto::*;
use crate::dto::DeleteWithVersion;
use crate::service::dialysis_service;
use crate::state::DialysisState;

#[derive(Debug, Deserialize, IntoParams)]
pub struct PaginationParams {
    pub page: Option<u64>,
    pub page_size: Option<u64>,
}

#[derive(Debug, serde::Deserialize, utoipa::ToSchema)]
pub struct UpdateDialysisWithVersion {
    #[serde(flatten)]
    pub data: UpdateDialysisRecordReq,
    pub version: i32,
}

#[derive(Debug, serde::Deserialize, utoipa::ToSchema)]
pub struct ReviewDialysisWithVersion {
    pub version: i32,
}

pub async fn list_dialysis_records<S>(
    State(state): State<DialysisState>,
    Extension(ctx): Extension<TenantContext>,
    Path(patient_id): Path<Uuid>,
    Query(params): Query<PaginationParams>,
) -> Result<Json<ApiResponse<PaginatedResponse<DialysisRecordResp>>>, AppError>
where
    DialysisState: FromRef<S>,
    S: Clone + Send + Sync + 'static,
{
    require_permission(&ctx, "health.health-data.list")?;
    let page = params.page.unwrap_or(1);
    let page_size = params.page_size.unwrap_or(20);
    let result = dialysis_service::list_dialysis_records(
        &state, ctx.tenant_id, patient_id, page, page_size,
    )
    .await?;
    Ok(Json(ApiResponse::ok(result)))
}

pub async fn get_dialysis_record<S>(
    State(state): State<DialysisState>,
    Extension(ctx): Extension<TenantContext>,
    Path(record_id): Path<Uuid>,
) -> Result<Json<ApiResponse<DialysisRecordResp>>, AppError>
where
    DialysisState: FromRef<S>,
    S: Clone + Send + Sync + 'static,
{
    require_permission(&ctx, "health.health-data.list")?;
    let result = dialysis_service::get_dialysis_record(
        &state, ctx.tenant_id, record_id,
    )
    .await?;
    Ok(Json(ApiResponse::ok(result)))
}

pub async fn create_dialysis_record<S>(
    State(state): State<DialysisState>,
    Extension(ctx): Extension<TenantContext>,
    Json(req): Json<CreateDialysisRecordReq>,
) -> Result<Json<ApiResponse<DialysisRecordResp>>, AppError>
where
    DialysisState: FromRef<S>,
    S: Clone + Send + Sync + 'static,
{
    require_permission(&ctx, "health.health-data.manage")?;
    let mut req = req;
    req.sanitize();
    let result = dialysis_service::create_dialysis_record(
        &state, ctx.tenant_id, Some(ctx.user_id), req,
    )
    .await?;
    Ok(Json(ApiResponse::ok(result)))
}

pub async fn update_dialysis_record<S>(
    State(state): State<DialysisState>,
    Extension(ctx): Extension<TenantContext>,
    Path(record_id): Path<Uuid>,
    Json(req): Json<UpdateDialysisWithVersion>,
) -> Result<Json<ApiResponse<DialysisRecordResp>>, AppError>
where
    DialysisState: FromRef<S>,
    S: Clone + Send + Sync + 'static,
{
    require_permission(&ctx, "health.health-data.manage")?;
    let mut data = req.data;
    data.sanitize();
    let result = dialysis_service::update_dialysis_record(
        &state, ctx.tenant_id, record_id, Some(ctx.user_id), data, req.version,
    )
    .await?;
    Ok(Json(ApiResponse::ok(result)))
}

pub async fn review_dialysis_record<S>(
    State(state): State<DialysisState>,
    Extension(ctx): Extension<TenantContext>,
    Path(record_id): Path<Uuid>,
    Json(req): Json<ReviewDialysisWithVersion>,
) -> Result<Json<ApiResponse<DialysisRecordResp>>, AppError>
where
    DialysisState: FromRef<S>,
    S: Clone + Send + Sync + 'static,
{
    require_permission(&ctx, "health.health-data.manage")?;
    let result = dialysis_service::review_dialysis_record(
        &state, ctx.tenant_id, record_id, ctx.user_id, req.version,
    )
    .await?;
    Ok(Json(ApiResponse::ok(result)))
}

pub async fn delete_dialysis_record<S>(
    State(state): State<DialysisState>,
    Extension(ctx): Extension<TenantContext>,
    Path(record_id): Path<Uuid>,
    Json(req): Json<DeleteWithVersion>,
) -> Result<Json<ApiResponse<()>>, AppError>
where
    DialysisState: FromRef<S>,
    S: Clone + Send + Sync + 'static,
{
    require_permission(&ctx, "health.health-data.manage")?;
    dialysis_service::delete_dialysis_record(
        &state, ctx.tenant_id, record_id, Some(ctx.user_id), req.version,
    )
    .await?;
    Ok(Json(ApiResponse::ok(())))
}