#include "app_core/document_layer.h"
#include "test_harness.h"

#include <string>

namespace {

void layer_rename_records_changed_name(pp::tests::Harness& harness)
{
    const auto plan = pp::app::plan_document_layer_rename("Base", "Paint");
    PP_EXPECT(harness, plan);
    if (plan) {
        PP_EXPECT(harness, plan.value().old_name == "Base");
        PP_EXPECT(harness, plan.value().new_name == "Paint");
        PP_EXPECT(
            harness,
            plan.value().action == pp::app::DocumentLayerRenameAction::rename_and_record_undo);
    }
}

void layer_rename_ignores_unchanged_name(pp::tests::Harness& harness)
{
    const auto plan = pp::app::plan_document_layer_rename("Ink", "Ink");
    PP_EXPECT(harness, plan);
    if (plan) {
        PP_EXPECT(harness, plan.value().old_name == "Ink");
        PP_EXPECT(harness, plan.value().new_name == "Ink");
        PP_EXPECT(
            harness,
            plan.value().action == pp::app::DocumentLayerRenameAction::no_op_same_name);
    }
}

void layer_rename_rejects_empty_name(pp::tests::Harness& harness)
{
    const auto plan = pp::app::plan_document_layer_rename("Ink", "");
    PP_EXPECT(harness, !plan);
    if (!plan) {
        PP_EXPECT(harness, plan.status().code == pp::foundation::StatusCode::invalid_argument);
    }
}

void layer_rename_rejects_overlong_name(pp::tests::Harness& harness)
{
    const std::string too_long(pp::app::document_layer_name_max_length + 1U, 'x');
    const auto plan = pp::app::plan_document_layer_rename("Ink", too_long);
    PP_EXPECT(harness, !plan);
    if (!plan) {
        PP_EXPECT(harness, plan.status().code == pp::foundation::StatusCode::out_of_range);
    }
}

}

int main()
{
    pp::tests::Harness harness;
    harness.run("layer rename records changed name", layer_rename_records_changed_name);
    harness.run("layer rename ignores unchanged name", layer_rename_ignores_unchanged_name);
    harness.run("layer rename rejects empty name", layer_rename_rejects_empty_name);
    harness.run("layer rename rejects overlong name", layer_rename_rejects_overlong_name);
    return harness.finish();
}