use axum::extract::{FromRef, Json, Path, Query, State};
use axum::Extension;
use erp_core::error::AppError;
use erp_core::rbac::require_permission;
use erp_core::types::{ApiResponse, PaginatedResponse, TenantContext};

use crate::dto::care_plan_dto::*;
use crate::service::care_plan_service;
use crate::state::HealthState;

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

// ---------------------------------------------------------------------------
// CarePlan
// ---------------------------------------------------------------------------

pub async fn list_care_plans<S>(
    State(state): State<HealthState>,
    Extension(ctx): Extension<TenantContext>,
    Query(params): Query<ListCarePlansParams>,
) -> Result<Json<ApiResponse<PaginatedResponse<CarePlanResp>>>, AppError>
where
    HealthState: FromRef<S>,
    S: Clone + Send + Sync + 'static,
{
    require_permission(&ctx, "health.care-plan.list")?;
    let result = care_plan_service::list_care_plans(&state, ctx.tenant_id, &params).await?;
    Ok(Json(ApiResponse::ok(result)))
}

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

pub async fn create_care_plan<S>(
    State(state): State<HealthState>,
    Extension(ctx): Extension<TenantContext>,
    Json(mut req): Json<CreateCarePlanReq>,
) -> Result<Json<ApiResponse<CarePlanResp>>, AppError>
where
    HealthState: FromRef<S>,
    S: Clone + Send + Sync + 'static,
{
    require_permission(&ctx, "health.care-plan.manage")?;
    req.sanitize();
    let result =
        care_plan_service::create_care_plan(&state, ctx.tenant_id, Some(ctx.user_id), req).await?;
    Ok(Json(ApiResponse::ok(result)))
}

pub async fn update_care_plan<S>(
    State(state): State<HealthState>,
    Extension(ctx): Extension<TenantContext>,
    Path(plan_id): Path<uuid::Uuid>,
    Json(mut req): Json<UpdateCarePlanWithVersion>,
) -> Result<Json<ApiResponse<CarePlanResp>>, AppError>
where
    HealthState: FromRef<S>,
    S: Clone + Send + Sync + 'static,
{
    require_permission(&ctx, "health.care-plan.manage")?;
    req.data.sanitize();
    let result = care_plan_service::update_care_plan(
        &state,
        ctx.tenant_id,
        plan_id,
        Some(ctx.user_id),
        req,
    )
    .await?;
    Ok(Json(ApiResponse::ok(result)))
}

pub async fn delete_care_plan<S>(
    State(state): State<HealthState>,
    Extension(ctx): Extension<TenantContext>,
    Path(plan_id): Path<uuid::Uuid>,
    Json(body): Json<crate::dto::DeleteWithVersion>,
) -> Result<Json<ApiResponse<()>>, AppError>
where
    HealthState: FromRef<S>,
    S: Clone + Send + Sync + 'static,
{
    require_permission(&ctx, "health.care-plan.manage")?;
    care_plan_service::delete_care_plan(
        &state,
        ctx.tenant_id,
        plan_id,
        Some(ctx.user_id),
        body.version,
    )
    .await?;
    Ok(Json(ApiResponse::ok(())))
}

// ---------------------------------------------------------------------------
// CarePlanItem
// ---------------------------------------------------------------------------

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

pub async fn create_care_plan_item<S>(
    State(state): State<HealthState>,
    Extension(ctx): Extension<TenantContext>,
    Path(plan_id): Path<uuid::Uuid>,
    Json(mut req): Json<CreateCarePlanItemReq>,
) -> Result<Json<ApiResponse<CarePlanItemResp>>, AppError>
where
    HealthState: FromRef<S>,
    S: Clone + Send + Sync + 'static,
{
    require_permission(&ctx, "health.care-plan.manage")?;
    req.sanitize();
    let result = care_plan_service::create_care_plan_item(
        &state,
        ctx.tenant_id,
        plan_id,
        Some(ctx.user_id),
        req,
    )
    .await?;
    Ok(Json(ApiResponse::ok(result)))
}

pub async fn update_care_plan_item<S>(
    State(state): State<HealthState>,
    Extension(ctx): Extension<TenantContext>,
    Path((plan_id, item_id)): Path<(uuid::Uuid, uuid::Uuid)>,
    Json(mut req): Json<UpdateCarePlanItemWithVersion>,
) -> Result<Json<ApiResponse<CarePlanItemResp>>, AppError>
where
    HealthState: FromRef<S>,
    S: Clone + Send + Sync + 'static,
{
    require_permission(&ctx, "health.care-plan.manage")?;
    req.data.sanitize();
    let result = care_plan_service::update_care_plan_item(
        &state,
        ctx.tenant_id,
        plan_id,
        item_id,
        Some(ctx.user_id),
        req,
    )
    .await?;
    Ok(Json(ApiResponse::ok(result)))
}

pub async fn delete_care_plan_item<S>(
    State(state): State<HealthState>,
    Extension(ctx): Extension<TenantContext>,
    Path((plan_id, item_id)): Path<(uuid::Uuid, uuid::Uuid)>,
    Json(body): Json<crate::dto::DeleteWithVersion>,
) -> Result<Json<ApiResponse<()>>, AppError>
where
    HealthState: FromRef<S>,
    S: Clone + Send + Sync + 'static,
{
    require_permission(&ctx, "health.care-plan.manage")?;
    care_plan_service::delete_care_plan_item(
        &state,
        ctx.tenant_id,
        plan_id,
        item_id,
        Some(ctx.user_id),
        body.version,
    )
    .await?;
    Ok(Json(ApiResponse::ok(())))
}

// ---------------------------------------------------------------------------
// CarePlanOutcome
// ---------------------------------------------------------------------------

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

pub async fn create_care_plan_outcome<S>(
    State(state): State<HealthState>,
    Extension(ctx): Extension<TenantContext>,
    Path(plan_id): Path<uuid::Uuid>,
    Json(mut req): Json<CreateCarePlanOutcomeReq>,
) -> Result<Json<ApiResponse<CarePlanOutcomeResp>>, AppError>
where
    HealthState: FromRef<S>,
    S: Clone + Send + Sync + 'static,
{
    require_permission(&ctx, "health.care-plan.manage")?;
    req.sanitize();
    let result = care_plan_service::create_care_plan_outcome(
        &state,
        ctx.tenant_id,
        plan_id,
        Some(ctx.user_id),
        req,
    )
    .await?;
    Ok(Json(ApiResponse::ok(result)))
}

pub async fn update_care_plan_outcome<S>(
    State(state): State<HealthState>,
    Extension(ctx): Extension<TenantContext>,
    Path((plan_id, outcome_id)): Path<(uuid::Uuid, uuid::Uuid)>,
    Json(mut req): Json<UpdateCarePlanOutcomeWithVersion>,
) -> Result<Json<ApiResponse<CarePlanOutcomeResp>>, AppError>
where
    HealthState: FromRef<S>,
    S: Clone + Send + Sync + 'static,
{
    require_permission(&ctx, "health.care-plan.manage")?;
    req.data.sanitize();
    let result = care_plan_service::update_care_plan_outcome(
        &state,
        ctx.tenant_id,
        plan_id,
        outcome_id,
        Some(ctx.user_id),
        req,
    )
    .await?;
    Ok(Json(ApiResponse::ok(result)))
}

pub async fn delete_care_plan_outcome<S>(
    State(state): State<HealthState>,
    Extension(ctx): Extension<TenantContext>,
    Path((plan_id, outcome_id)): Path<(uuid::Uuid, uuid::Uuid)>,
    Json(body): Json<crate::dto::DeleteWithVersion>,
) -> Result<Json<ApiResponse<()>>, AppError>
where
    HealthState: FromRef<S>,
    S: Clone + Send + Sync + 'static,
{
    require_permission(&ctx, "health.care-plan.manage")?;
    care_plan_service::delete_care_plan_outcome(
        &state,
        ctx.tenant_id,
        plan_id,
        outcome_id,
        Some(ctx.user_id),
        body.version,
    )
    .await?;
    Ok(Json(ApiResponse::ok(())))
}