using Admin.NET.Plugin.AiDOP.Entity;
using Admin.NET.Plugin.AiDOP.SmartOps;
using Xunit;

namespace Admin.NET.Plugin.AiDOP.Tests.SmartOps;

public class SmartOpsImprovementActionTests
{
    [Theory]
    [InlineData("doing", "in_progress")]
    [InlineData("in_progress", "in_progress")]
    [InlineData("done", "completed")]
    [InlineData("cancelled", "cancelled")]
    [InlineData("pending", "pending")]
    public void Status_NormalizesLegacyValues(string raw, string expected)
    {
        Assert.Equal(expected, SmartOpsImprovementActionStatus.Normalize(raw));
    }

    [Theory]
    [InlineData("pending", "in_progress", true)]
    [InlineData("pending", "cancelled", true)]
    [InlineData("in_progress", "completed", true)]
    [InlineData("completed", "pending", false)]
    [InlineData("cancelled", "completed", false)]
    [InlineData("cancelled", "pending", true)]
    public void Status_TransitionsAreGuarded(string from, string to, bool allowed)
    {
        Assert.Equal(allowed, SmartOpsImprovementActionStatus.CanTransition(from, to));
    }

    [Fact]
    public void Overdue_OnlyAppliesToOpenActions()
    {
        var yesterday = DateTime.Today.AddDays(-1);
        Assert.True(SmartOpsImprovementActionStatus.IsOverdue("pending", yesterday, DateTime.Today));
        Assert.False(SmartOpsImprovementActionStatus.IsOverdue("completed", yesterday, DateTime.Today));
        Assert.Equal("overdue", SmartOpsImprovementActionStatus.DisplayStatus("doing", yesterday, DateTime.Today));
    }

    [Fact]
    public void NoticeKey_IsIdempotentPerDayAndType()
    {
        var key1 = SmartOpsImprovementNoticeType.NoticeKey(1, 9, SmartOpsImprovementNoticeType.Overdue, new DateTime(2026, 8, 17));
        var key2 = SmartOpsImprovementNoticeType.NoticeKey(1, 9, SmartOpsImprovementNoticeType.Overdue, new DateTime(2026, 8, 17));
        var key3 = SmartOpsImprovementNoticeType.NoticeKey(1, 9, SmartOpsImprovementNoticeType.DueSoon, new DateTime(2026, 8, 17));
        Assert.Equal(key1, key2);
        Assert.NotEqual(key1, key3);
    }

    [Fact]
    public void LegacyJson_ParsesCamelAndPascal()
    {
        var camel = SmartOpsImprovementActionService.ParseDrafts(
            """[{"content":"核对缺料","owner":"1001","dueDate":"2026-08-18","status":"doing"}]""");
        var pascal = SmartOpsImprovementActionService.ParseDrafts(
            """[{"Content":"核对缺料","Owner":"计划员","DueDate":"2026-08-18","Status":"pending"}]""");
        Assert.Single(camel);
        Assert.Equal("核对缺料", camel[0].Content);
        Assert.Equal("doing", camel[0].Status);
        Assert.Single(pascal);
        Assert.Equal("计划员", pascal[0].Owner);
    }

    [Fact]
    public void Controller_NoLongerWritesActionJsonAsSourceOfTruth()
    {
        var source = File.ReadAllText(FindController());
        Assert.Contains("_actions.MutateAsync", source);
        Assert.Contains("_actions.ReplaceFromDraftAsync", source);
        Assert.DoesNotContain("ActionItemsJson = actionItemsJson", source);
    }

    private static string FindController()
    {
        var dir = new DirectoryInfo(AppContext.BaseDirectory);
        while (dir != null)
        {
            var candidate = Path.Combine(dir.FullName,
                "server", "Plugins", "Admin.NET.Plugin.AiDOP", "Controllers",
                "AdoSmartOpsImprovementPlanController.cs");
            if (File.Exists(candidate)) return candidate;
            dir = dir.Parent;
        }
        throw new FileNotFoundException("AdoSmartOpsImprovementPlanController.cs");
    }
}