using System.Collections.Generic;

using System.Globalization;

using System.Linq;

using Npgsql.NameTranslation;

using NUnit.Framework;

namespace Npgsql.Tests;

public class SnakeCaseNameTranslatorTests

{

static readonly CultureInfo trTRCulture = new("tr-TR");

static readonly CultureInfo enUSCulture = new("en-US");

[Test, TestCaseSource(typeof(SnakeCaseNameTranslatorTests), nameof(TestCases))]

public string TranslateTypeName(CultureInfo? culture, string value, bool legacyMode)

=> new NpgsqlSnakeCaseNameTranslator(legacyMode, culture).TranslateTypeName(value);

[Test, TestCaseSource(typeof(SnakeCaseNameTranslatorTests), nameof(TestCases))]

public string TranslateMemberName(CultureInfo? culture, string value, bool legacyMode)

=> new NpgsqlSnakeCaseNameTranslator(legacyMode, culture).TranslateMemberName(value);

static IEnumerable<TestCaseData> TestCases => new (CultureInfo? culture, string value, string legacyResult, string result)[]

{

(null, "Hi!! This is text. Time to test.", "hi!! _this is text. _time to test.", "hi_this_is_text_time_to_test"),

(null, "9999-12-31T23:59:59.9999999Z", "9999-12-31_t23:59:59.9999999_z", "9999_12_31t23_59_59_9999999z"),

(null, "FK_post_simple_blog_BlogId", "f_k_post_simple_blog__blog_id", "fk_post_simple_blog_blog_id"),

(null, "already_snake_case_ ", "already_snake_case_ ", "already_snake_case_"),

(null, "SHOUTING_CASE", "s_h_o_u_t_i_n_g__c_a_s_e", "shouting_case"),

(null, "IsJSONProperty", "is_j_s_o_n_property", "is_json_property"),

(null, "SnA__ kEcAsE", "sn_a__ k_ec_as_e", "sn_a__k_ec_as_e"),

(null, "SnA__kEcAsE", "sn_a__k_ec_as_e", "sn_a__k_ec_as_e"),

(null, "SnAkEcAsE", "sn_ak_ec_as_e", "sn_ak_ec_as_e"),

(null, "URLValue", "u_r_l_value", "url_value"),

(null, "Xml2Json", "xml2_json", "xml2json"),

(null, " IPhone ", " _i_phone ", "i_phone"),

(null, "I Phone", "i _phone", "i_phone"),

(null, " IPhone", " _i_phone", "i_phone"),

(null, "I Phone", "i _phone", "i_phone"),

(null, "IPhone", "i_phone", "i_phone"),

(null, "iPhone", "i_phone", "i_phone"),

(null, "IsCIA", "is_c_i_a", "is_cia"),

(null, "Person", "person", "person"),

(null, "ABC123", "a_b_c123", "abc123"),

(null, "VmQ", "vm_q", "vm_q"),

(null, "URL", "u_r_l", "url"),

(null, "AB1", "a_b1", "ab1"),

(null, "ID", "i_d", "id"),

(null, "I", "i", "i"),

(null, "", "", ""),

(trTRCulture, "IPhone", "ı_phone", "ı_phone"), // dotless I -> dotless ı

(enUSCulture, "IPhone", "i_phone", "i_phone"),

(CultureInfo.InvariantCulture, "IPhone", "i_phone", "i_phone"),

}.SelectMany(x => new[]

{

new TestCaseData(x.culture, x.value, true).Returns(x.legacyResult),

new TestCaseData(x.culture, x.value, false).Returns(x.result),

});

[Test, Description("Checks translating a name with letter 'I' in Turkish locale with default setting (Invariant Culture)")]

[SetCulture("tr-TR")]

public void TurkeyTest()

{

var translator = new NpgsqlSnakeCaseNameTranslator();

var legacyTranslator = new NpgsqlSnakeCaseNameTranslator(true);

const string clrName = "IPhone";

const string expected = "i_phone";

Assert.That(translator.TranslateMemberName(clrName), Is.EqualTo(expected));

Assert.That(translator.TranslateTypeName(clrName), Is.EqualTo(expected));

Assert.That(legacyTranslator.TranslateMemberName(clrName), Is.EqualTo(expected));

Assert.That(legacyTranslator.TranslateTypeName(clrName), Is.EqualTo(expected));

}

}