using System.Text;
using BimAI.API.Services;
using BimAI.Infrastructure.Data;
using BimAI.Infrastructure.Jobs;
using BimAI.Infrastructure.Sync;
using Hangfire;
using Hangfire.SqlServer;
using Microsoft.EntityFrameworkCore;
using Microsoft.AspNetCore.Authentication.JwtBearer;
using Microsoft.IdentityModel.Tokens;


var builder = WebApplication.CreateBuilder(args);

var connectionString = builder.Configuration.GetConnectionString("DefaultConnection");
builder.Services.AddDbContext<BimAIDbContext>(options => options.UseSqlServer(connectionString));
builder.Services.AddScoped<ProductSyncService>();

builder.Services.AddHttpClient();
builder.Services.AddControllers();

// Start Hangfire section
builder.Services.AddHangfire(configuration => configuration
    .SetDataCompatibilityLevel(CompatibilityLevel.Version_180)
    .UseSimpleAssemblyNameTypeSerializer()
    .UseRecommendedSerializerSettings()
    .UseSqlServerStorage(builder.Configuration.GetConnectionString("HangfireConnection"),
        new SqlServerStorageOptions
        {
            CommandBatchMaxTimeout = TimeSpan.FromMinutes(5),
            SlidingInvisibilityTimeout = TimeSpan.FromMinutes(5),
            QueuePollInterval = TimeSpan.Zero,
            UseRecommendedIsolationLevel = true,
            DisableGlobalLocks = true,
            SchemaName = "Hangfire"
        }
    )
);
builder.Services.AddHangfireServer(options =>
{
    options.ServerName = builder.Configuration["Hangfire:ServerName"];
    options.WorkerCount = builder.Configuration.GetValue<int>("Hangfire:WorkerCount", 5);
});
// End Hangfire section
// Start auth section
var jwtSettings = builder.Configuration.GetSection("JwtSettings");
var secretKey = jwtSettings["SecretKey"];
var issuer = jwtSettings["Issuer"];
var audience = jwtSettings["Audience"];

builder.Services.AddAuthentication(JwtBearerDefaults.AuthenticationScheme)
    .AddJwtBearer(options =>
    {
        options.TokenValidationParameters = new TokenValidationParameters
        {
            ValidateIssuer = true,
            ValidateAudience = true,
            ValidateLifetime = true,
            ValidateIssuerSigningKey = true,
            ValidIssuer = issuer,
            ValidAudience = audience,
            IssuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(secretKey)),
            ClockSkew = TimeSpan.Zero,
        };
    });
builder.Services.AddAuthentication();

builder.Services.AddScoped<GoogleAuthService>();
builder.Services.AddScoped<JwtTokenService>();

builder.Services.AddCors(options =>
{
    options.AddPolicy("AllowAll", policy =>
    {
        policy.AllowAnyOrigin()
            .AllowAnyMethod()
            .AllowAnyHeader();
    });
});
// End auth section

var app = builder.Build();

// Auto-apply migrations on startup
using (var scope = app.Services.CreateScope())
{
    var db = scope.ServiceProvider.GetRequiredService<BimAIDbContext>();

    try
    {
        var pending = await db.Database.GetPendingMigrationsAsync();
        if (pending.Any())
        {
            app.Logger.LogWarning("Applying {Count} pending migrations: {List}",
                pending.Count(), string.Join(", ", pending));
            await db.Database.MigrateAsync();
            app.Logger.LogInformation("Migrations applied successfully.");
        }
        else
        {
            app.Logger.LogInformation("No pending migrations.");
        }
    }
    catch (Exception ex)
    {
        app.Logger.LogCritical(ex, "Migration failed - application will not start.");
        throw; // stop startup
    }
}


app.UseHttpsRedirection();
app.UseCors("AllowAll");
app.UseHangfireDashboard(builder.Configuration["Hangfire:DashboardPath"] ?? "/hangfire", new DashboardOptions
{
    AsyncAuthorization = new[] { new HangfireAuthorizationFilter() },
    DashboardTitle = "BimAI - Job Dashboard"
});
app.UseAuthorization();
app.UseAuthorization();
app.MapControllers();

app.MapGet("/health", () => Results.Ok(new { status = "OK", timestamp = DateTime.UtcNow }))
    .AllowAnonymous();

RecurringJob.AddOrUpdate<ProductSyncJob>(
    "product-sync",
    job => job.ExecuteAsync(),
    Cron.Daily(2, 0), // Every day at 2:00 AM
    new RecurringJobOptions
    {
        TimeZone = TimeZoneInfo.Local,
        MisfireHandling = app.Environment.IsDevelopment() 
            ? MisfireHandlingMode.Relaxed 
            : MisfireHandlingMode.Strict 
    });

app.Run();