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

namespace AxCopilot.Tests.Services;

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

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

            var args = JsonDocument.Parse(
                """
                {
                  "path": "board-golden.pptx",
                  "theme": "professional",
                  "audience": "Executive committee",
                  "objective": "Approve the phase-1 operating model rollout",
                  "decision_ask": "Approve the phase-1 rollout and funding release",
                  "slides": [
                    {
                      "layout": "title",
                      "title": "Operating Model Refresh"
                    },
                    {
                      "layout": "executive_summary",
                      "title": "Executive Summary",
                      "headline": "Phase-1 rollout can improve service consistency while protecting margin.",
                      "summary_points": [
                        "Three pilot functions account for most process variation and rework.",
                        "Phase-1 can be delivered without slowing current-quarter commitments.",
                        "The operating model change is expected to reduce handoff delay by 18%."
                      ],
                      "recommendation": "Approve the phase-1 rollout and lock the pilot governance model.",
                      "kpis": [
                        { "label": "Cycle Time", "value": "-18%", "trend": "target", "note": "handoff simplification" },
                        { "label": "Margin", "value": "+2.4pt", "trend": "run-rate", "note": "mix and rework" },
                        { "label": "On-time Delivery", "value": "96%", "trend": "pilot", "note": "stable" }
                      ]
                    },
                    {
                      "layout": "comparison",
                      "title": "Options",
                      "headline": "A phased rollout balances speed, control, and adoption risk.",
                      "options": [
                        { "name": "Pilot only", "pros": "Lowest delivery risk", "cons": "Value capture is delayed", "verdict": "Too cautious" },
                        { "name": "Phased rollout", "pros": "Balanced speed and control", "cons": "Requires PMO discipline", "verdict": "Recommended" },
                        { "name": "Full rollout", "pros": "Fastest value capture", "cons": "High adoption risk", "verdict": "Too disruptive" }
                      ]
                    },
                    {
                      "layout": "roadmap",
                      "title": "Roadmap",
                      "headline": "Roll out in three waves with explicit governance checkpoints.",
                      "phases": [
                        { "title": "Design", "detail": "Finalize scope, KPIs, and governance", "timeline": "Weeks 1-3", "owner": "PMO" },
                        { "title": "Pilot", "detail": "Launch pilot functions and refine playbooks", "timeline": "Weeks 4-8", "owner": "Operations" },
                        { "title": "Scale", "detail": "Expand to the remaining regions", "timeline": "Weeks 9-14", "owner": "Business" }
                      ]
                    },
                    {
                      "layout": "recommendation",
                      "title": "Recommendation",
                      "recommendation": "Approve phase-1 rollout, assign PMO governance, and release pilot funding.",
                      "summary_points": [
                        "The phased path protects execution quality while capturing measurable value in-quarter.",
                        "The pilot governance model can be reused for the scale phase.",
                        "The decision can be taken now because the key delivery risks are already bounded."
                      ],
                      "next_steps": [
                        "Confirm phase-1 scope this week",
                        "Launch pilot governance cadence next week",
                        "Review pilot performance at week 8"
                      ]
                    },
                    {
                      "layout": "table",
                      "title": "Appendix & Evidence",
                      "headers": ["Evidence", "Detail"],
                      "rows": [
                        ["Process review", "Pilot teams show the highest rework and handoff load."],
                        ["Financial impact", "Run-rate margin lift is driven by lower rework and better prioritization."]
                      ]
                    }
                  ]
                }
                """).RootElement;

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

            result.Success.Should().BeTrue();
            File.Exists(Path.Combine(workDir, "board-golden.pptx")).Should().BeTrue();
            result.Output.Should().Contain("PPT quality");
            result.Output.Should().NotContain("Slide alerts:");
            result.Output.Should().Contain("Needs work: none");
        }
        finally
        {
            try
            {
                if (Directory.Exists(workDir))
                    Directory.Delete(workDir, true);
            }
            catch
            {
            }
        }
    }

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

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

            var args = JsonDocument.Parse(
                """
                {
                  "path": "strategy-golden.pptx",
                  "theme": "professional",
                  "audience": "CEO staff",
                  "objective": "Confirm the next-phase growth strategy",
                  "decision_ask": "Approve the SMB-first expansion plan",
                  "storyline": ["Executive Summary", "Current State", "Options", "Roadmap", "Recommendation", "Appendix"],
                  "slides": [
                    {
                      "layout": "title",
                      "title": "Growth Strategy Refresh"
                    },
                    {
                      "layout": "executive_summary",
                      "title": "Executive Summary",
                      "headline": "An SMB-first strategy gives the best balance of growth, margin, and execution risk.",
                      "summary_points": [
                        "The SMB segment now drives the strongest retention and the fastest sales cycle.",
                        "Enterprise expansion remains attractive but requires heavier onboarding capacity.",
                        "The SMB-first path improves near-term growth while keeping operating complexity in bounds."
                      ],
                      "recommendation": "Prioritize SMB expansion, stage enterprise enablement, and re-sequence hiring.",
                      "kpis": [
                        { "label": "Growth", "value": "+14%", "trend": "run-rate", "note": "SMB mix" },
                        { "label": "Margin", "value": "+1.8pt", "trend": "plan", "note": "lower service load" },
                        { "label": "Retention", "value": "92%", "trend": "SMB", "note": "stable" }
                      ]
                    },
                    {
                      "layout": "comparison",
                      "title": "Strategic Options",
                      "headline": "SMB-first is the strongest near-term path while preserving the enterprise option.",
                      "options": [
                        { "name": "SMB first", "pros": "Fast cycle and strong retention", "cons": "Smaller deal size", "verdict": "Recommended" },
                        { "name": "Balanced mix", "pros": "Diversified growth", "cons": "Higher delivery complexity", "verdict": "Balanced" },
                        { "name": "Enterprise first", "pros": "Largest upside", "cons": "Slowest ramp and highest risk", "verdict": "Long-term only" }
                      ]
                    },
                    {
                      "layout": "roadmap",
                      "title": "Execution Roadmap",
                      "headline": "Deliver in three phases with clear commercial and delivery checkpoints.",
                      "phases": [
                        { "title": "Focus", "detail": "Reset segment priorities and targets", "timeline": "Weeks 1-2", "owner": "Strategy" },
                        { "title": "Enable", "detail": "Align pricing, messaging, and onboarding", "timeline": "Weeks 3-6", "owner": "Sales + Ops" },
                        { "title": "Scale", "detail": "Expand channel coverage and monitor retention", "timeline": "Weeks 7-12", "owner": "GM" }
                      ]
                    },
                    {
                      "layout": "recommendation",
                      "title": "Recommendation",
                      "headline": "Approve the SMB-first plan and stage enterprise investment after week 8.",
                      "recommendation": "Approve the SMB-first growth plan and stage enterprise investments after onboarding capacity stabilizes.",
                      "summary_points": [
                        "This path captures the highest near-term growth with the cleanest operating model.",
                        "It keeps the enterprise option open without overloading delivery teams.",
                        "The required decision is sequencing, not strategic direction."
                      ],
                      "next_steps": [
                        "Reset next-quarter targets",
                        "Lock SMB enablement backlog",
                        "Review enterprise readiness after week 8"
                      ]
                    },
                    {
                      "layout": "table",
                      "title": "Appendix & Evidence",
                      "headers": ["Observation", "Implication"],
                      "rows": [
                        ["Retention pattern", "SMB cohort retention is consistently above plan."],
                        ["Onboarding load", "Enterprise onboarding is the main delivery constraint."]
                      ]
                    }
                  ]
                }
                """).RootElement;

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

            result.Success.Should().BeTrue();
            File.Exists(Path.Combine(workDir, "strategy-golden.pptx")).Should().BeTrue();
            result.Output.Should().Contain("PPT quality");
            result.Output.Should().NotContain("Slide alerts:");
            result.Output.Should().Contain("Needs work: none");
        }
        finally
        {
            try
            {
                if (Directory.Exists(workDir))
                    Directory.Delete(workDir, true);
            }
            catch
            {
            }
        }
    }

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

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

            var args = JsonDocument.Parse(
                """
                {
                  "path": "pmo-golden.pptx",
                  "theme": "professional",
                  "template_pack": "pmo",
                  "audience": "Transformation steering committee",
                  "objective": "Confirm the phase-2 PMO steering decision",
                  "decision_ask": "Approve the next wave and keep the governance cadence",
                  "storyline": ["Executive Summary", "Issue Tree", "Risk Overview", "Roadmap", "Recommendation", "Appendix"],
                  "slides": [
                    {
                      "layout": "title",
                      "title": "PMO Steering Pack"
                    },
                    {
                      "layout": "executive_summary",
                      "title": "Executive Summary",
                      "headline": "Phase-2 can proceed with controlled delivery risk and a stable governance model.",
                      "summary_points": [
                        "The current PMO cadence already highlights the few issues that matter most for the next wave.",
                        "The major delivery risk is onboarding bottlenecks, not design ambiguity.",
                        "The decision is now about release timing and governance discipline."
                      ],
                      "recommendation": "Approve the next wave and keep the PMO steering cadence intact.",
                      "kpis": [
                        { "label": "Milestone Health", "value": "92%", "trend": "on track", "note": "core plan stable" },
                        { "label": "Risk Closure", "value": "78%", "trend": "improving", "note": "weekly review" },
                        { "label": "Budget", "value": "98%", "trend": "plan", "note": "within guardrails" }
                      ]
                    },
                    {
                      "layout": "issue_tree",
                      "title": "Issue Tree",
                      "issues": [
                        "Onboarding capacity is the main delivery bottleneck.",
                        "Regional readiness varies by manager capability.",
                        "Decision latency increases when risk owners are unclear."
                      ],
                      "implications": [
                        "Protect the launch window with tighter staffing rules.",
                        "Keep manager enablement inside the PMO workplan.",
                        "Confirm named owners for the top-three risk items."
                      ]
                    },
                    {
                      "layout": "risk_heatmap",
                      "title": "Risk Overview",
                      "risks": [
                        { "title": "Onboarding bottleneck", "impact": "High", "likelihood": "Medium", "mitigation": "Stage wave-2 staffing" },
                        { "title": "Regional readiness gap", "impact": "Medium", "likelihood": "Medium", "mitigation": "Run manager enablement" }
                      ]
                    },
                    {
                      "layout": "roadmap",
                      "title": "Roadmap",
                      "headline": "Run the next wave through three controlled PMO checkpoints.",
                      "phases": [
                        { "title": "Approve", "detail": "Lock funding, risk owners, and wave scope", "timeline": "Week 1", "owner": "SteerCo" },
                        { "title": "Launch", "detail": "Start the next wave and monitor onboarding load", "timeline": "Weeks 2-6", "owner": "PMO" },
                        { "title": "Review", "detail": "Confirm milestone health and risk closure", "timeline": "Week 8", "owner": "Exec sponsors" }
                      ]
                    },
                    {
                      "layout": "recommendation",
                      "title": "Recommendation",
                      "headline": "Approve the next wave and keep governance cadence intact.",
                      "recommendation": "Approve the next wave, keep weekly PMO reviews, and assign named owners to the top-three risks.",
                      "summary_points": [
                        "The current evidence is sufficient to proceed without delaying the launch window.",
                        "Governance continuity is the main control lever for delivery quality."
                      ],
                      "next_steps": [
                        "Approve funding and scope",
                        "Confirm risk owners",
                        "Start weekly PMO review for wave 2"
                      ]
                    },
                    {
                      "layout": "appendix_evidence",
                      "title": "Appendix & Evidence",
                      "evidence": [
                        { "title": "Milestone trend", "detail": "Core milestones remain above 90% health", "source": "PMO tracker" },
                        { "title": "Budget status", "detail": "Program remains inside the approved guardrails", "source": "Finance review" }
                      ]
                    }
                  ]
                }
                """).RootElement;

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

            result.Success.Should().BeTrue();
            File.Exists(Path.Combine(workDir, "pmo-golden.pptx")).Should().BeTrue();
            result.Output.Should().Contain("PPT quality");
            result.Output.Should().NotContain("Slide alerts:");
            result.Output.Should().Contain("Needs work: none");
        }
        finally
        {
            try
            {
                if (Directory.Exists(workDir))
                    Directory.Delete(workDir, true);
            }
            catch
            {
            }
        }
    }
}