use actix_web::{HttpResponse, web};
use serde::Deserialize;
use utoipa::IntoParams;

use crate::api::response::{ApiErrorResponse, ApiResponse};
use crate::error::AppError;
use crate::models::repos::BranchProtectionRule;
use crate::service::AppService;
use crate::session::Session;

#[derive(Debug, Deserialize, IntoParams)]
pub struct PathParams {
    /// Workspace name (unique identifier)
    pub workspace_name: String,
    /// Repository name (unique within the workspace)
    pub repo_name: String,
}

#[derive(Debug, Deserialize, IntoParams)]
pub struct QueryParams {
    /// Branch name to check against protection rules
    pub branch_name: String,
}

/// Match a branch name against protection rules
///
/// Checks if a branch name matches any protection rule in the repository.
/// Requires read access to the repository.
///
/// Returns the matching protection rule if found, or null if no rules match.
/// Useful for determining what protections apply to a specific branch before performing operations.
#[utoipa::path(
    get,
    path = "/api/v1/workspaces/{workspace_name}/repos/{repo_name}/protection/match",
    tag = "Repos",
    operation_id = "repoMatchProtection",
    params(PathParams, QueryParams),
    responses(
        (status = 200, description = "Branch protection check completed. Returns matching protection rule or null if no rules match.", body = ApiResponse<Option<BranchProtectionRule>>),
        (status = 401, description = "Authentication required or session expired", body = ApiErrorResponse),
        (status = 403, description = "Insufficient permissions to access this repository", body = ApiErrorResponse),
        (status = 404, description = "Repository or workspace not found", body = ApiErrorResponse),
        (status = 500, description = "Internal server error", body = ApiErrorResponse),
    ),
    security(
        ("session_cookie" = [])
    )
)]
pub async fn match_protection(
    service: web::Data<AppService>,
    session: Session,
    path: web::Path<PathParams>,
    query: web::Query<QueryParams>,
) -> Result<HttpResponse, AppError> {
    let rule = service
        .repo
        .repo_match_protection(
            &session,
            &path.workspace_name,
            &path.repo_name,
            &query.branch_name,
        )
        .await?;

    Ok(HttpResponse::Ok().json(ApiResponse::new(rule)))
}