#include <gtest/gtest.h>

#include <QJsonDocument>
#include <QJsonObject>

#include "dto/GridDto.hpp"

using namespace geopro::data::dto;
using geopro::core::TableColumnKind;

namespace {

// 取自真实夹具 tests/fixtures/dd/ert-grid-rows.json 的 data（rowList 5 行，gridHeaderDisplay
// 两列 x/y，total=62，逐字一致；端点 dd/ert/grid/rows）。内联避免引入 fixture 路径编译定义。
const char* kGridData = R"({
  "gridHeaderDisplay": [
    { "columnCode": "x", "columnNameChn": "x", "columnNameEng": "x", "columnWidth": 10, "columnSort": 1 },
    { "columnCode": "y", "columnNameChn": "y", "columnNameEng": "y", "columnWidth": 10, "columnSort": 2 }
  ],
  "functionList": [],
  "total": 62,
  "rowList": [
    { "x": 2.904, "y": 25.126, "id": "1438944148742144" },
    { "x": 4.897, "y": 25.161, "id": "1438944148742145" },
    { "x": 6.892, "y": 25.247, "id": "1438944148742146" },
    { "x": 8.892, "y": 25.251, "id": "1438944148742147" },
    { "x": 10.891, "y": 25.226, "id": "1438944148742148" }
  ]
})";

QJsonObject gridData() { return QJsonDocument::fromJson(kGridData).object(); }

}  // namespace

TEST(GridDto, FirstPagePrependsSeqColumnAndReadsTotal) {
    auto t = parseGridTable(gridData(), /*pageNo*/ 1, /*pageSize*/ 50);

    // 三列：序号 / x / y（序号前插，x/y 来自 gridHeaderDisplay 按 columnSort）。
    ASSERT_EQ(t.columns.size(), 3u);
    EXPECT_EQ(t.columns[0].title.toStdString(), std::string("序号"));
    EXPECT_EQ(t.columns[0].code.toStdString(), "__seq");
    EXPECT_EQ(t.columns[1].title.toStdString(), "x");
    EXPECT_EQ(t.columns[2].title.toStdString(), "y");
    for (const auto& c : t.columns) EXPECT_EQ(c.kind, TableColumnKind::Text);  // 无特殊列

    // 5 行；首行 序号=1 / x=2.904 / y=25.126。
    ASSERT_EQ(t.rows.size(), 5u);
    ASSERT_EQ(t.rows[0].size(), 3u);
    EXPECT_EQ(t.rows[0][0].toStdString(), "1");
    EXPECT_EQ(t.rows[0][1].toStdString(), "2.904");
    EXPECT_EQ(t.rows[0][2].toStdString(), "25.126");
    EXPECT_EQ(t.rows[4][0].toStdString(), "5");  // 第 5 行序号=5

    // 总数取 data.total=62（非本批 5 行）；分页态回填。
    EXPECT_EQ(t.total, 62);
    EXPECT_EQ(t.pageNo, 1);
    EXPECT_EQ(t.pageSize, 50);
}

TEST(GridDto, SeqColumnOffsetsByPage) {
    // 第 2 页、每页 50：本页首行全局序号 = (2-1)*50 + 1 = 51。
    auto t = parseGridTable(gridData(), /*pageNo*/ 2, /*pageSize*/ 50);
    ASSERT_EQ(t.rows.size(), 5u);
    EXPECT_EQ(t.rows[0][0].toStdString(), "51");
    EXPECT_EQ(t.rows[4][0].toStdString(), "55");
    EXPECT_EQ(t.pageNo, 2);
    EXPECT_EQ(t.pageSize, 50);
}

TEST(GridDto, EmptyDataYieldsSeqOnlyColumnNoRows) {
    const QJsonObject empty;
    auto t = parseGridTable(empty, 1, 50);
    // 空数据：仅有前插的「序号」列，无行；total=0。
    ASSERT_EQ(t.columns.size(), 1u);
    EXPECT_EQ(t.columns[0].code.toStdString(), "__seq");
    EXPECT_EQ(t.rows.size(), 0u);
    EXPECT_EQ(t.total, 0);
    EXPECT_TRUE(t.functionButtons.empty());  // 无 functionList → 无功能按钮
}

TEST(GridDto, EmptyFunctionListYieldsNoButtons) {
    // 真实夹具 functionList:[] → functionButtons 空（不渲染工具条）。
    auto t = parseGridTable(gridData(), 1, 50);
    EXPECT_TRUE(t.functionButtons.empty());
}

TEST(GridDto, ParsesFunctionListIntoButtons) {
    // functionList = DDGridFunctionVO[]（functionCode/functionNameChn/enable）→ functionButtons。
    const char* kData = R"({
      "gridHeaderDisplay": [
        { "columnCode": "x", "columnNameChn": "x", "columnSort": 1 },
        { "columnCode": "y", "columnNameChn": "y", "columnSort": 2 }
      ],
      "functionList": [
        { "functionCode": "inversion", "functionNameChn": "反演", "enable": true },
        { "functionCode": "other", "functionNameChn": "其它", "enable": false }
      ],
      "total": 1,
      "rowList": [ { "x": 1.0, "y": 2.0, "id": "1" } ]
    })";
    auto t = parseGridTable(QJsonDocument::fromJson(kData).object(), 1, 50);

    ASSERT_EQ(t.functionButtons.size(), 2u);
    EXPECT_EQ(t.functionButtons[0].code.toStdString(), "inversion");
    EXPECT_EQ(t.functionButtons[0].nameChn.toStdString(), "反演");
    EXPECT_TRUE(t.functionButtons[0].enable);
    EXPECT_EQ(t.functionButtons[1].code.toStdString(), "other");
    EXPECT_FALSE(t.functionButtons[1].enable);  // enable=false（视图按 v-show 不渲染）
}