// Copyright (c) 2023 PaddlePaddle Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#include <gtest/gtest.h>
#include <map>
#include "paddle/fluid/ir/dialect/paddle_dialect/ir/pd_dialect.h"
#include "paddle/fluid/ir/dialect/paddle_dialect/ir/pd_type.h"
#include "paddle/ir/core/block.h"
#include "paddle/ir/core/builder.h"
#include "paddle/ir/core/builtin_type.h"
#include "paddle/ir/core/dialect.h"
#include "paddle/ir/core/ir_context.h"
#include "paddle/ir/core/program.h"
#include "paddle/ir/dialect/shape/ir/shape_dialect.h"
#include "paddle/ir/dialect/shape/ir/shape_op.h"
#include "paddle/ir/dialect/shape/utils/shape_utils.h"

TEST(assist_struct_test, symbolic_dim) {
  ir::IrContext *ctx = ir::IrContext::Instance();
  ir::Program program(ctx);
  ctx->GetOrRegisterDialect<ir::dialect::ShapeDialect>();
  ir::Builder builder = ir::Builder(ctx, program.block());
  ir::dialect::SymbolicDim symDim = builder.Build<ir::dialect::SymbolicDim>(
      "S0", 10, false, false, false, false);
  ir::dialect::SymbolicDim symDim_ = builder.Build<ir::dialect::SymbolicDim>(
      "S1", 10, false, false, false, false);
  EXPECT_EQ(symDim.getValue(), 10);
  EXPECT_EQ(symDim.getSymName(), "S0");
  EXPECT_FALSE(symDim.getKnownNegativeOne());
  EXPECT_FALSE(symDim.getKnownNonSizeOne());
  EXPECT_FALSE(symDim.getKnownNonSizeZero());
  EXPECT_FALSE(symDim.getKnownNonNegative());

  EXPECT_FALSE(symDim.isDynamic());
  EXPECT_TRUE(symDim.merge(symDim_));

  symDim.updateValue(20);
  symDim.updateSymName("S2");
  symDim.updateKnownNegativeOne(true);
  symDim.updateKnownNonSizeOne(true);
  symDim.updateKnownNonSizeZero(true);
  symDim.updateKnownNonNegative(true);

  EXPECT_FALSE(symDim.merge(symDim_));

  EXPECT_EQ(symDim.getValue(), 20);
  EXPECT_EQ(symDim.getSymName(), "S2");
  EXPECT_TRUE(symDim.getKnownNegativeOne());
  EXPECT_TRUE(symDim.getKnownNonSizeOne());
  EXPECT_TRUE(symDim.getKnownNonSizeZero());
  EXPECT_TRUE(symDim.getKnownNonNegative());
}

TEST(assist_struct_test, symbolic_dim_product) {
  ir::IrContext *ctx = ir::IrContext::Instance();
  ir::Program program(ctx);
  ctx->GetOrRegisterDialect<ir::dialect::ShapeDialect>();
  ir::Builder builder = ir::Builder(ctx, program.block());
  ir::dialect::SymbolicDim symDim = builder.Build<ir::dialect::SymbolicDim>(
      "S0", -100000, false, false, false, false);
  ir::SymbolicDimProduct symDimProduct;
  ir::SymbolicDimProduct symDimProduct_;
  symDimProduct.symbols.push_back(symDim);
  symDimProduct.factor *= 10;
  EXPECT_EQ(symDimProduct.factor, 10);
  EXPECT_NE(symDimProduct, symDimProduct_);
  EXPECT_FALSE(symDimProduct.empty());
}

TEST(assist_struct_test, symbolic_dim_table) {
  ir::IrContext *ctx = ir::IrContext::Instance();
  ir::Program program(ctx);
  ctx->GetOrRegisterDialect<ir::dialect::ShapeDialect>();
  ir::Builder builder = ir::Builder(ctx, program.block());
  ir::dialect::SymbolicDim symDim = builder.Build<ir::dialect::SymbolicDim>(
      "S0", 10, false, false, false, false);

  ir::SymbolTable symbolTable(program.module_op());
  EXPECT_EQ(symbolTable.insert(symDim), "S0");
  EXPECT_EQ(symbolTable.lookup("S0")->dyn_cast<ir::dialect::SymbolicDim>(),
            symDim);
  EXPECT_EQ(symbolTable.lookup("S1"), nullptr);
  EXPECT_EQ(symbolTable.getOp(), program.module_op());
}

TEST(assist_struct_test, symbolic_dim_mgr) {
  ir::IrContext *ctx = ir::IrContext::Instance();
  ir::Program program(ctx);
  ctx->GetOrRegisterDialect<ir::dialect::ShapeDialect>();
  ctx->GetOrRegisterDialect<paddle::dialect::PaddleDialect>();

  ir::SymbolicDimMgr symDimMgr(program.module_op());
  ir::dialect::SymbolicDim symDimS0 = symDimMgr.newSymbolicDim();
  ir::dialect::SymbolicDim symDimS1 = symDimMgr.newSymbolicDim();
  ir::dialect::SymbolicDim symDimC10 = symDimMgr.newConstantSymbolicDim(10);
  symDimMgr.mapSymbolicDimEqual(symDimS0, symDimS1);

  ir::Attribute attr_value = ir::StrAttribute::get(ctx, "op_attr");
  ir::AttributeMap attr_map;
  attr_map.insert(std::pair<std::string, ir::Attribute>("op", attr_value));
  std::vector<ir::OpResult> op_inputs = {};

  ir::Type fp32_dtype = ir::Float32Type::get(ctx);
  phi::DDim dims = {-100000, 2};
  phi::DataLayout data_layout = phi::DataLayout::NCHW;
  phi::LoD lod = {{0, 1, 2}};
  size_t offset = 0;
  std::vector<ir::Type> op_output_types = {
      paddle::dialect::DenseTensorType::get(
          ctx, fp32_dtype, dims, data_layout, lod, offset)};
  ir::Operation *op =
      ir::Operation::Create(op_inputs, attr_map, op_output_types, ir::OpInfo());
  ir::Value res = op->result(0);

  std::vector<ir::dialect::SymbolicDim> symDimVec =
      symDimMgr.createSymbolicDimsForRankedValue(res);

  EXPECT_EQ(symDimS0.getSymName(), "S0");
  EXPECT_EQ(symDimS1.getSymName(), "S1");
  EXPECT_EQ(symDimS1.getValue(), -100000);
  EXPECT_EQ(symDimC10.getSymName(), "C10");
  EXPECT_EQ(symDimC10.getValue(), 10);
  EXPECT_EQ(symDimVec[0].getSymName(), "S2");
  EXPECT_EQ(symDimVec[1].getSymName(), "C2");
  EXPECT_EQ(symDimMgr.symbolTable()
                .lookup("S0")
                ->dyn_cast<ir::dialect::SymbolicDim>(),
            symDimS0);
  EXPECT_EQ(symDimMgr.symbolTable()
                .lookup("C10")
                ->dyn_cast<ir::dialect::SymbolicDim>(),
            symDimC10);
  EXPECT_EQ(symDimMgr.getRootSymbolicDim(symDimS1), symDimS0);
  EXPECT_TRUE(symDimMgr.isSymbolicDimEqual(symDimS0, symDimS1));
  EXPECT_FALSE(symDimMgr.isSymbolicDimEqual(symDimS0, symDimC10));
}