using DongfangHydro.Dashboard.Api.Contracts;
using DongfangHydro.Dashboard.Api.Data;
using DongfangHydro.Dashboard.Api.Importing;
using DongfangHydro.Dashboard.Api.Realtime;
using DongfangHydro.Dashboard.Api.Services;
using Microsoft.EntityFrameworkCore;
using System.Text.Json;

var importCommand = BomImportCommand.Parse(args);
var builder = WebApplication.CreateBuilder(importCommand is null ? args : []);
if (importCommand is not null)
{
    builder.Configuration.AddUserSecrets<Program>(optional: true);
}

var connectionString = builder.Configuration.GetConnectionString("DashboardDb")
    ?? throw new InvalidOperationException("Connection string 'DashboardDb' is not configured.");

builder.Services.AddDbContext<DashboardDbContext>(options => options.UseSqlServer(connectionString));
builder.Services.AddScoped<ProgressAggregationService>();
builder.Services.AddScoped<DashboardSeeder>();
builder.Services.AddScoped<DashboardQueryService>();
builder.Services.AddScoped<ProgressUpdateService>();
builder.Services.AddScoped<BomImportService>();
builder.Services.AddSignalR();
builder.Services.AddSingleton<IDashboardNotifier, SignalRDashboardNotifier>();
builder.Services.AddSingleton<DashboardUpdateQueue>();
builder.Services.AddSingleton<IDashboardUpdateQueue>(services =>
    services.GetRequiredService<DashboardUpdateQueue>());
builder.Services.AddHostedService(services => services.GetRequiredService<DashboardUpdateQueue>());
builder.Services.AddHealthChecks();
builder.Services.AddCors(options =>
{
    options.AddDefaultPolicy(policy =>
    {
        var origins = builder.Configuration.GetSection("Cors:AllowedOrigins").Get<string[]>() ?? [];
        if (origins.Length == 0)
        {
            policy.AllowAnyOrigin().AllowAnyHeader().AllowAnyMethod();
            return;
        }

        policy.WithOrigins(origins).AllowAnyHeader().AllowAnyMethod().AllowCredentials();
    });
});

var app = builder.Build();
if (importCommand is not null)
{
    var report = await BomImportCommandRunner.RunAsync(app.Services, importCommand, CancellationToken.None);
    Console.WriteLine(JsonSerializer.Serialize(report, new JsonSerializerOptions { WriteIndented = true }));
    return;
}

app.UseCors();

app.MapHealthChecks("/health");
app.MapGet("/api/dashboard/overview", async (
    DashboardQueryService service,
    CancellationToken cancellationToken) =>
    Results.Ok(await service.GetOverviewAsync(cancellationToken)));

app.MapGet("/api/orders", async (
    string? keyword,
    string? status,
    Guid? lineId,
    int? page,
    int? pageSize,
    DashboardQueryService service,
    CancellationToken cancellationToken) =>
    Results.Ok(await service.GetOrdersAsync(
        keyword,
        status,
        lineId,
        page ?? 1,
        pageSize ?? 20,
        cancellationToken)));

app.MapGet("/api/orders/{orderId:guid}", async (
    Guid orderId,
    DashboardQueryService service,
    CancellationToken cancellationToken) =>
{
    var order = await service.GetOrderAsync(orderId, cancellationToken);
    return order is null ? Results.NotFound() : Results.Ok(order);
});

app.MapGet("/api/orders/{orderId:guid}/tree", async (
    Guid orderId,
    DashboardQueryService service,
    CancellationToken cancellationToken) =>
{
    var tree = await service.GetTreeAsync(orderId, cancellationToken);
    return tree is null ? Results.NotFound() : Results.Ok(tree);
});

app.MapGet("/api/orders/{orderId:guid}/trend", async (
    Guid orderId,
    int? limit,
    DashboardQueryService service,
    CancellationToken cancellationToken) =>
    Results.Ok(await service.GetTrendAsync(orderId, limit ?? 12, cancellationToken)));

app.MapGet("/api/orders/{orderId:guid}/material-quotas", async (
    Guid orderId,
    string? category,
    string? keyword,
    int? page,
    int? pageSize,
    DashboardQueryService service,
    CancellationToken cancellationToken) =>
    Results.Ok(await service.GetMaterialQuotasAsync(
        orderId,
        category,
        keyword,
        page ?? 1,
        pageSize ?? 50,
        cancellationToken)));

app.MapGet("/api/risk-events", async (
    Guid? orderId,
    int? limit,
    DashboardQueryService service,
    CancellationToken cancellationToken) =>
    Results.Ok(await service.GetRiskEventsAsync(orderId, limit ?? 20, cancellationToken)));

app.MapGet("/api/delay-top", async (
    int? limit,
    DashboardQueryService service,
    CancellationToken cancellationToken) =>
    Results.Ok(await service.GetDelayTopAsync(limit ?? 5, cancellationToken)));

app.MapPatch("/api/nodes/{nodeId:guid}/progress", async (
    Guid nodeId,
    UpdateNodeProgressRequest request,
    ProgressUpdateService service,
    CancellationToken cancellationToken) =>
{
    try
    {
        var result = await service.UpdateAsync(nodeId, request, cancellationToken);
        return result is null ? Results.NotFound() : Results.Ok(result);
    }
    catch (ArgumentException exception)
    {
        return Results.ValidationProblem(new Dictionary<string, string[]>
        {
            ["progress"] = [exception.Message],
        });
    }
    catch (DbUpdateConcurrencyException)
    {
        return Results.Conflict(new
        {
            code = "progress_conflict",
            message = "The production node changed after it was loaded. Reload the node and retry.",
        });
    }
});

app.MapHub<DashboardHub>("/hubs/dashboard");
await DatabaseInitializer.InitializeAsync(app);
app.Run();

public partial class Program;