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::patient_dto::{
    CreatePatientReq, FamilyMemberReq, FamilyMemberResp, ManageTagsReq, PatientResp,
    UpdatePatientReq,
};
use crate::service::patient_service;
use crate::state::HealthState;

#[derive(Debug, Deserialize, IntoParams)]
pub struct PatientListParams {
    pub page: Option<u64>,
    pub page_size: Option<u64>,
    pub search: Option<String>,
    pub tag_id: Option<Uuid>,
}

/// 分配医生请求
#[derive(Debug, serde::Deserialize, utoipa::ToSchema)]
pub struct AssignDoctorReq {
    pub doctor_id: Uuid,
    pub relationship_type: Option<String>,
}

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

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

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

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

pub async fn update_patient<S>(
    State(state): State<HealthState>,
    Extension(ctx): Extension<TenantContext>,
    Path(id): Path<Uuid>,
    Json(req): Json<UpdatePatientWithVersion>,
) -> Result<Json<ApiResponse<PatientResp>>, AppError>
where
    HealthState: FromRef<S>,
    S: Clone + Send + Sync + 'static,
{
    require_permission(&ctx, "health.patient.manage")?;
    let version = req.version;
    let update = UpdatePatientReq {
        name: req.name,
        gender: req.gender,
        birth_date: req.birth_date,
        blood_type: req.blood_type,
        id_number: req.id_number,
        allergy_history: req.allergy_history,
        medical_history_summary: req.medical_history_summary,
        emergency_contact_name: req.emergency_contact_name,
        emergency_contact_phone: req.emergency_contact_phone,
        source: req.source,
        notes: req.notes,
        status: req.status,
        verification_status: req.verification_status,
    };
    let result = patient_service::update_patient(
        &state, ctx.tenant_id, id, Some(ctx.user_id), update, version,
    )
    .await?;
    Ok(Json(ApiResponse::ok(result)))
}

pub async fn delete_patient<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.patient.manage")?;
    patient_service::delete_patient(&state, ctx.tenant_id, id, Some(ctx.user_id), req.version).await?;
    Ok(Json(ApiResponse::ok(())))
}

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

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

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

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

pub async fn update_family_member<S>(
    State(state): State<HealthState>,
    Extension(ctx): Extension<TenantContext>,
    Path((_patient_id, member_id)): Path<(Uuid, Uuid)>,
    Json(req): Json<FamilyMemberUpdateWithVersion>,
) -> Result<Json<ApiResponse<FamilyMemberResp>>, AppError>
where
    HealthState: FromRef<S>,
    S: Clone + Send + Sync + 'static,
{
    require_permission(&ctx, "health.patient.manage")?;
    let version = req.version;
    let update = FamilyMemberReq {
        name: req.name,
        relationship: req.relationship,
        phone: req.phone,
        birth_date: req.birth_date,
        notes: req.notes,
    };
    let result = patient_service::update_family_member(
        &state, ctx.tenant_id, _patient_id, member_id, Some(ctx.user_id), update, version,
    )
    .await?;
    Ok(Json(ApiResponse::ok(result)))
}

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

pub async fn assign_doctor<S>(
    State(state): State<HealthState>,
    Extension(ctx): Extension<TenantContext>,
    Path(id): Path<Uuid>,
    Json(req): Json<AssignDoctorReq>,
) -> Result<Json<ApiResponse<()>>, AppError>
where
    HealthState: FromRef<S>,
    S: Clone + Send + Sync + 'static,
{
    require_permission(&ctx, "health.patient.manage")?;
    patient_service::assign_doctor(
        &state,
        ctx.tenant_id,
        id,
        req.doctor_id,
        req.relationship_type.unwrap_or_else(|| "primary".to_string()),
        Some(ctx.user_id),
    )
    .await?;
    Ok(Json(ApiResponse::ok(())))
}

pub async fn remove_doctor<S>(
    State(state): State<HealthState>,
    Extension(ctx): Extension<TenantContext>,
    Path((patient_id, doctor_id)): Path<(Uuid, Uuid)>,
) -> Result<Json<ApiResponse<()>>, AppError>
where
    HealthState: FromRef<S>,
    S: Clone + Send + Sync + 'static,
{
    require_permission(&ctx, "health.patient.manage")?;
    patient_service::remove_doctor(&state, ctx.tenant_id, patient_id, doctor_id).await?;
    Ok(Json(ApiResponse::ok(())))
}

// 带版本号的更新请求包装
#[derive(Debug, serde::Deserialize, utoipa::ToSchema)]
pub struct UpdatePatientWithVersion {
    pub name: Option<String>,
    pub gender: Option<String>,
    pub birth_date: Option<chrono::NaiveDate>,
    pub blood_type: Option<String>,
    pub id_number: Option<String>,
    pub allergy_history: Option<String>,
    pub medical_history_summary: Option<String>,
    pub emergency_contact_name: Option<String>,
    pub emergency_contact_phone: Option<String>,
    pub source: Option<String>,
    pub notes: Option<String>,
    pub status: Option<String>,
    pub verification_status: Option<String>,
    pub version: i32,
}

#[derive(Debug, serde::Deserialize, utoipa::ToSchema)]
pub struct FamilyMemberUpdateWithVersion {
    pub name: String,
    pub relationship: String,
    pub phone: Option<String>,
    pub birth_date: Option<chrono::NaiveDate>,
    pub notes: Option<String>,
    pub version: i32,
}