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::doctor_dto::*;
use crate::service::doctor_service;
use crate::state::HealthState;

#[derive(Debug, Deserialize, IntoParams)]
pub struct DoctorListParams {
    pub page: Option<u64>,
    pub page_size: Option<u64>,
    pub search: Option<String>,
    pub department: Option<String>,
    pub title: Option<String>,
}

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

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

pub async fn list_doctors<S>(
    State(state): State<HealthState>,
    Extension(ctx): Extension<TenantContext>,
    Query(params): Query<DoctorListParams>,
) -> Result<Json<ApiResponse<PaginatedResponse<DoctorResp>>>, AppError>
where
    HealthState: FromRef<S>,
    S: Clone + Send + Sync + 'static,
{
    require_permission(&ctx, "health.doctor.list")?;
    let page = params.page.unwrap_or(1);
    let page_size = params.page_size.unwrap_or(20);
    let result = doctor_service::list_doctors(
        &state, ctx.tenant_id, page, page_size, params.search, params.department, params.title,
    )
    .await?;
    Ok(Json(ApiResponse::ok(result)))
}

pub async fn create_doctor<S>(
    State(state): State<HealthState>,
    Extension(ctx): Extension<TenantContext>,
    Json(req): Json<CreateDoctorReq>,
) -> Result<Json<ApiResponse<DoctorResp>>, AppError>
where
    HealthState: FromRef<S>,
    S: Clone + Send + Sync + 'static,
{
    require_permission(&ctx, "health.doctor.manage")?;
    let result = doctor_service::create_doctor(
        &state, ctx.tenant_id, Some(ctx.user_id), req,
    )
    .await?;
    Ok(Json(ApiResponse::ok(result)))
}

pub async fn get_doctor<S>(
    State(state): State<HealthState>,
    Extension(ctx): Extension<TenantContext>,
    Path(id): Path<Uuid>,
) -> Result<Json<ApiResponse<DoctorResp>>, AppError>
where
    HealthState: FromRef<S>,
    S: Clone + Send + Sync + 'static,
{
    require_permission(&ctx, "health.doctor.list")?;
    let result = doctor_service::get_doctor(&state, ctx.tenant_id, id).await?;
    Ok(Json(ApiResponse::ok(result)))
}

pub async fn update_doctor<S>(
    State(state): State<HealthState>,
    Extension(ctx): Extension<TenantContext>,
    Path(id): Path<Uuid>,
    Json(req): Json<UpdateDoctorWithVersion>,
) -> Result<Json<ApiResponse<DoctorResp>>, AppError>
where
    HealthState: FromRef<S>,
    S: Clone + Send + Sync + 'static,
{
    require_permission(&ctx, "health.doctor.manage")?;
    let result = doctor_service::update_doctor(
        &state, ctx.tenant_id, id, Some(ctx.user_id), req.data, req.version,
    )
    .await?;
    Ok(Json(ApiResponse::ok(result)))
}

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