package ecs

Coordinator :: struct {
    component_manager: ^ComponentManager,
    entity_manager: ^EntityManager,
    system_manager: ^SystemManager,
}

coordinator_create :: proc() -> Coordinator {
    coordinator := Coordinator{}
    coordinator.component_manager = new(ComponentManager, context.allocator)
    coordinator.component_manager^ = component_manager_create()

    coordinator.entity_manager = new(EntityManager, context.allocator)
    coordinator.entity_manager^ = entity_manager_create()

    coordinator.system_manager = new(SystemManager, context.allocator)
    coordinator.system_manager^ = system_manager_create()

    return coordinator
}

coordinator_create_entity :: proc(coordinator: ^Coordinator) -> EntityID {
    return entity_manager_create_entity(coordinator.entity_manager)
}

coordinator_destroy_entity :: proc(coordinator: ^Coordinator, entity_id: EntityID) {
    component_manager_destroy_entity(coordinator.component_manager, entity_id)
    entity_manager_destroy_entity(coordinator.entity_manager, entity_id)
    system_manager_destroy_entity(coordinator.system_manager, entity_id)
}

coordinator_register_component :: proc($T: typeid, coordinator: ^Coordinator) {
    component_manager_register_component(T, coordinator.component_manager)
}

coordinator_add_component :: proc($T: typeid, coordinator: ^Coordinator, entity_id: EntityID, component: T) {
    component_manager_add_component(T, coordinator.component_manager, entity_id, component)

    signature := entity_manager_get_signature(coordinator.entity_manager, entity_id)
    signature_set(&signature, component_manager_get_component_type(T, coordinator.component_manager))
    entity_manager_set_signature(coordinator.entity_manager, entity_id, signature)

    system_manager_change_entity_signature(coordinator.system_manager, entity_id, signature)
}

coordinator_remove_component :: proc($T: typeid, coordinator: ^Coordinator, entity_id: EntityID) {
    component_manager_remove_component(T, coordinator.component_manager, entity_id)

    signature := entity_manager_get_signature(coordinator.entity_manager, entity_id)
    signature_unset(&signature, component_manager_get_component_type(T, coordinator.component_manager))
    entity_manager_set_signature(coordinator.entity_manager, entity_id, signature)

    system_manager_change_entity_signature(coordinator.system_manager, entity_id, signature)
}

coordinator_get_component :: proc($T: typeid, coordinator: ^Coordinator, entity_id: EntityID) -> ^T {
    return component_manager_get_component(T, coordinator.component_manager, entity_id)
}

coordinator_get_component_type :: proc($T: typeid, coordinator: ^Coordinator) -> ComponentType {
    return component_manager_get_component_type(T, coordinator.component_manager)
}

coordinator_register_system :: proc($T: typeid, coordinator: ^Coordinator) -> ^T {
    return system_manager_register_system(T, coordinator.system_manager)
}

coordinator_set_system_signature :: proc($T: typeid, coordinator: ^Coordinator, signature: Signature) {
    system_manager_set_signature(T, coordinator.system_manager, signature)
}

coordinator_destroy :: proc(coordinator: ^Coordinator) {
    component_manager_destroy(coordinator.component_manager)
    entity_manager_destroy(coordinator.entity_manager)
    system_manager_destroy(coordinator.system_manager) 

    free(coordinator.component_manager)
    free(coordinator.entity_manager)
    free(coordinator.system_manager)
}