use serde::{Deserialize, Serialize};

#[derive(Debug, Serialize, Deserialize)]
pub struct DatabaseInfo {
    pub name: String,
    pub owner: String,
    pub encoding: String,
    pub collation: String,
    pub ctype: String,
    pub tablespace: String,
    pub connection_limit: i32,
    pub size: String,
    pub description: Option<String>,
}

#[derive(Debug, Deserialize)]
pub struct CreateDatabaseParams {
    pub name: String,
    pub owner: Option<String>,
    pub template: Option<String>,
    pub encoding: Option<String>,
    pub tablespace: Option<String>,
    pub connection_limit: Option<i32>,
}

#[derive(Debug, Serialize, Deserialize)]
pub struct RoleInfo {
    pub name: String,
    pub is_superuser: bool,
    pub can_login: bool,
    pub can_create_db: bool,
    pub can_create_role: bool,
    pub inherit: bool,
    pub is_replication: bool,
    pub connection_limit: i32,
    pub password_set: bool,
    pub valid_until: Option<String>,
    pub member_of: Vec<String>,
    pub members: Vec<String>,
    pub description: Option<String>,
}

#[derive(Debug, Deserialize)]
pub struct CreateRoleParams {
    pub name: String,
    pub password: Option<String>,
    pub login: bool,
    pub superuser: bool,
    pub createdb: bool,
    pub createrole: bool,
    pub inherit: bool,
    pub replication: bool,
    pub connection_limit: Option<i32>,
    pub valid_until: Option<String>,
    pub in_roles: Vec<String>,
}

#[derive(Debug, Deserialize)]
pub struct AlterRoleParams {
    pub name: String,
    pub password: Option<String>,
    pub login: Option<bool>,
    pub superuser: Option<bool>,
    pub createdb: Option<bool>,
    pub createrole: Option<bool>,
    pub inherit: Option<bool>,
    pub replication: Option<bool>,
    pub connection_limit: Option<i32>,
    pub valid_until: Option<String>,
    pub rename_to: Option<String>,
}

#[derive(Debug, Serialize, Deserialize)]
pub struct TablePrivilege {
    pub grantee: String,
    pub table_schema: String,
    pub table_name: String,
    pub privilege_type: String,
    pub is_grantable: bool,
}

#[derive(Debug, Serialize, Deserialize)]
pub struct SessionInfo {
    pub pid: i32,
    pub usename: Option<String>,
    pub datname: Option<String>,
    pub state: Option<String>,
    pub query: Option<String>,
    pub query_start: Option<String>,
    pub wait_event_type: Option<String>,
    pub wait_event: Option<String>,
    pub client_addr: Option<String>,
}

#[derive(Debug, Deserialize)]
pub struct GrantRevokeParams {
    pub action: String,
    pub privileges: Vec<String>,
    pub object_type: String,
    pub object_name: String,
    pub role_name: String,
    pub with_grant_option: bool,
}

#[derive(Debug, Deserialize)]
pub struct RoleMembershipParams {
    pub action: String,
    pub role_name: String,
    pub member_name: String,
}