#include <gtest/gtest.h>

#include <QJsonDocument>
#include <QJsonObject>

#include "panels/chart/InversionFormParse.hpp"

using namespace geopro::app;

namespace {

// 取自原版动态表单响应 data 结构（POST /business/project/getDynamicForm）：
// formList → [{groupName, values:[{fieldCode, fieldName, optionsObject:[{label,value}]}]}]。
const char* kFormData = R"({
  "formList": [
    {
      "groupName": "基础参数",
      "values": [
        { "fieldCode": "elevation", "fieldName": "是否含高程",
          "optionsObject": [ {"label": "是", "value": "1"}, {"label": "否", "value": "0"} ] },
        { "fieldCode": "method", "fieldName": "反演方法",
          "optionsObject": [ {"label": "最小二乘", "value": "ls"} ] }
      ]
    },
    {
      "groupName": "高级参数",
      "values": [
        { "fieldCode": "noOptions", "fieldName": "无选项字段", "optionsObject": [] }
      ]
    }
  ]
})";

QJsonObject formData() { return QJsonDocument::fromJson(kFormData).object(); }

}  // namespace

TEST(InversionFormParse, ParsesGroupsFieldsAndOptions) {
    const auto groups = parseDynamicForm(formData());

    ASSERT_EQ(groups.size(), 2u);
    EXPECT_EQ(groups[0].groupName.toStdString(), std::string("基础参数"));
    ASSERT_EQ(groups[0].fields.size(), 2u);

    const auto& f0 = groups[0].fields[0];
    EXPECT_EQ(f0.fieldCode.toStdString(), std::string("elevation"));
    EXPECT_EQ(f0.fieldName.toStdString(), std::string("是否含高程"));
    ASSERT_EQ(f0.options.size(), 2u);
    EXPECT_EQ(f0.options[0].label.toStdString(), std::string("是"));
    EXPECT_EQ(f0.options[0].value.toStdString(), std::string("1"));

    EXPECT_TRUE(groups[1].fields[0].options.empty());
}

TEST(InversionFormParse, EmptyDataYieldsNoGroups) {
    EXPECT_TRUE(parseDynamicForm(QJsonObject{}).empty());
}

TEST(InversionFormParse, AssembleUsesSelectedValues) {
    const auto groups = parseDynamicForm(formData());
    QJsonObject selected{{"elevation", "0"}, {"method", "ls"}};

    // fillDefaults=false（反演运算）：仅含已选且非空的字段；无选值字段不进体。
    const QJsonObject out = assembleFieldMap(groups, selected, /*fillDefaults*/ false);
    EXPECT_EQ(out.value("elevation").toString().toStdString(), std::string("0"));
    EXPECT_EQ(out.value("method").toString().toStdString(), std::string("ls"));
    EXPECT_FALSE(out.contains("noOptions"));  // 无选项 + 未选 → 不进体
}

TEST(InversionFormParse, AssembleFillsDefaultsWhenRequested) {
    const auto groups = parseDynamicForm(formData());

    // fillDefaults=true（生成视电阻率）：空选值回退首个选项。
    const QJsonObject out = assembleFieldMap(groups, QJsonObject{}, /*fillDefaults*/ true);
    EXPECT_EQ(out.value("elevation").toString().toStdString(), std::string("1"));  // 首项 value
    EXPECT_EQ(out.value("method").toString().toStdString(), std::string("ls"));
    EXPECT_FALSE(out.contains("noOptions"));  // 无选项 → 即便 fillDefaults 也无值可填
}

TEST(InversionFormParse, AssembleOmitsEmptySelectedValues) {
    const auto groups = parseDynamicForm(formData());
    QJsonObject selected{{"elevation", ""}};  // 显式空字符串

    // fillDefaults=false：空值不进体（复刻原版 handleConfirm 的 if(selectedValue)）。
    const QJsonObject out = assembleFieldMap(groups, selected, /*fillDefaults*/ false);
    EXPECT_FALSE(out.contains("elevation"));
}