using System.IO;
using System.Text.Json;
using AxCopilot.Services.Agent;
using DocumentFormat.OpenXml.Packaging;
using FluentAssertions;
using Xunit;

namespace AxCopilot.Tests.Services;

public class PptxSkillAutoRepairTests
{
    [Fact]
    public async Task ExecuteAsync_ShouldAugmentDeckAndReturnQualitySummary()
    {
        var workDir = Path.Combine(Path.GetTempPath(), "ax-pptx-repair-" + Guid.NewGuid().ToString("N"));
        Directory.CreateDirectory(workDir);

        try
        {
            var context = new AgentContext
            {
                WorkFolder = workDir,
                Permission = "Auto",
                OperationMode = "external",
            };

            var tool = new PptxSkill();
            var args = JsonDocument.Parse(
                """
                {
                  "path": "auto-repair-deck.pptx",
                  "title": "Operating Improvement",
                  "objective": "operating model proposal",
                  "decision_ask": "approve phase-1 launch",
                  "slides": [
                    {
                      "layout": "before_after",
                      "title": "Current vs Future",
                      "before": ["Manual coordination", "Slow approvals", "Fragmented KPI tracking"],
                      "after": ["Standard workflow", "Faster approvals", "Single KPI view"]
                    },
                    {
                      "layout": "benefit_waterfall",
                      "title": "Benefits",
                      "benefits": [
                        { "label": "Cost", "value": 8 },
                        { "label": "Speed", "value": 12 },
                        { "label": "Quality", "value": 6 }
                      ]
                    }
                  ]
                }
                """).RootElement;

            var result = await tool.ExecuteAsync(args, context, CancellationToken.None);
            var outputPath = Path.Combine(workDir, "auto-repair-deck.pptx");

            result.Success.Should().BeTrue();
            result.Output.Should().Contain("PPT quality");
            result.Output.Should().Contain("Storyline:");
            File.Exists(outputPath).Should().BeTrue();

            using var doc = PresentationDocument.Open(outputPath, false);
            doc.PresentationPart!.Presentation.SlideIdList!.Count().Should().BeGreaterThanOrEqualTo(6);
        }
        finally
        {
            try
            {
                if (Directory.Exists(workDir))
                    Directory.Delete(workDir, true);
            }
            catch
            {
            }
        }
    }

    [Fact]
    public async Task ExecuteAsync_ShouldRefineWeakDeckBeforeExport()
    {
        var workDir = Path.Combine(Path.GetTempPath(), "ax-pptx-refine-" + Guid.NewGuid().ToString("N"));
        Directory.CreateDirectory(workDir);

        try
        {
            var context = new AgentContext
            {
                WorkFolder = workDir,
                Permission = "Auto",
                OperationMode = "external",
            };

            var tool = new PptxSkill();
            var args = JsonDocument.Parse(
                """
                {
                  "path": "refined-deck.pptx",
                  "title": "Quarterly Steering Deck",
                  "objective": "approve the next delivery wave",
                  "slides": [
                    {
                      "layout": "executive_summary",
                      "title": "Executive Summary",
                      "body": [
                        "Approve the next delivery wave",
                        "The delivery plan should move forward"
                      ]
                    },
                    {
                      "layout": "comparison",
                      "title": "Options",
                      "options": [
                        { "name": "Conservative" },
                        { "name": "Balanced" }
                      ]
                    },
                    {
                      "layout": "roadmap",
                      "title": "Roadmap",
                      "phases": [
                        { "title": "Kickoff", "owner": "담당 미정" }
                      ]
                    },
                    {
                      "layout": "chart",
                      "title": "Trend",
                      "chart_labels": ["Jan", "Feb", "Mar"],
                      "chart_values": [10, 13, 16]
                    },
                    {
                      "layout": "kpi_dashboard",
                      "title": "KPI Snapshot",
                      "kpis": [
                        { "label": "Revenue", "value": "+9%" },
                        { "label": "Cycle Time", "value": "-6%" },
                        { "label": "Stability", "value": "96%" }
                      ]
                    }
                  ]
                }
                """).RootElement;

            var result = await tool.ExecuteAsync(args, context, CancellationToken.None);

            result.Success.Should().BeTrue();
            result.Output.Should().Contain("PPT quality");
            result.Output.Should().Contain("Needs work: none");
            result.Output.Should().Contain("Auto-repair:");
            File.Exists(Path.Combine(workDir, "refined-deck.pptx")).Should().BeTrue();
        }
        finally
        {
            try
            {
                if (Directory.Exists(workDir))
                    Directory.Delete(workDir, true);
            }
            catch
            {
            }
        }
    }
}