using System.Text;
using System.Text.Json.Serialization;
using Asp.Versioning;
using General_Ledger_Service.Infra;
using General_Ledger_Service.Infra.UoW;
using General_Ledger_Service.Interfaces.Repositories;
using General_Ledger_Service.Interfaces.Services;
using General_Ledger_Service.Middleware;
using General_Ledger_Service.Repositories;
using General_Ledger_Service.Services;
using Microsoft.AspNetCore.Authentication.JwtBearer;
using Microsoft.EntityFrameworkCore;
using Microsoft.IdentityModel.Tokens;

QuestPDF.Settings.License = QuestPDF.Infrastructure.LicenseType.Community;

var builder = WebApplication.CreateBuilder(args);

// Add services to the container.
// IgnoreCycles: several models have bidirectional parent/collection navigation
// (JournalEntry<->JournalEntryLine now; FixedAsset/Budget/RecurringJournalTemplate/
// BankAccount and their line/child tables later) - without this, returning a parent
// with an `Include`d collection throws a JSON serialization cycle error.
builder.Services.AddControllers()
    .AddJsonOptions(options =>
    {
        options.JsonSerializerOptions.ReferenceHandler = ReferenceHandler.IgnoreCycles;
    });

// API versioning
builder.Services.AddApiVersioning(options =>
{
    options.DefaultApiVersion = new ApiVersion(1, 0);
    options.AssumeDefaultVersionWhenUnspecified = true;
    options.ApiVersionReader = new UrlSegmentApiVersionReader();
}).AddMvc();

// OpenAPI / Swagger
builder.Services.AddEndpointsApiExplorer();
builder.Services.AddSwaggerGen();

// Database
builder.Services.AddDbContext<AppDBContext>(options =>
{
    var connectionString = builder.Configuration.GetConnectionString("DefaultConnection");
    // AutoDetect so the same build works against MySQL 8 (deployed) and MariaDB (local XAMPP).
    options.UseMySql(connectionString, ServerVersion.AutoDetect(connectionString));
});

// Unit of Work
builder.Services.AddScoped<IUnitOfWork, EFUnitOfWork>();

// Repositories
builder.Services.AddScoped<IAccountRepository, AccountRepository>();
builder.Services.AddScoped<ISystemConfigRepository, SystemConfigRepository>();
builder.Services.AddScoped<IFiscalCalendarRepository, FiscalCalendarRepository>();
builder.Services.AddScoped<ICurrencyRepository, CurrencyRepository>();
builder.Services.AddScoped<IAuditLogRepository, AuditLogRepository>();
builder.Services.AddScoped<ICostCenterRepository, CostCenterRepository>();
builder.Services.AddScoped<IJournalEntryRepository, JournalEntryRepository>();
builder.Services.AddScoped<IRecurringJournalTemplateRepository, RecurringJournalTemplateRepository>();
builder.Services.AddScoped<IBudgetRepository, BudgetRepository>();
builder.Services.AddScoped<ITaxRepository, TaxRepository>();
builder.Services.AddScoped<IFixedAssetRepository, FixedAssetRepository>();
builder.Services.AddScoped<IBankRepository, BankRepository>();
builder.Services.AddScoped<IChequeRepository, ChequeRepository>();

// Services
builder.Services.AddScoped<IAccountService, AccountService>();
builder.Services.AddScoped<ICurrencyService, CurrencyService>();
builder.Services.AddScoped<ICostCenterService, CostCenterService>();
builder.Services.AddScoped<IFiscalCalendarService, FiscalCalendarService>();
builder.Services.AddScoped<IJournalEntryService, JournalEntryService>();
builder.Services.AddScoped<IRecurringTemplateService, RecurringTemplateService>();
builder.Services.AddScoped<IReportService, ReportService>();
builder.Services.AddScoped<ITaxService, TaxService>();
builder.Services.AddScoped<IFixedAssetService, FixedAssetService>();
builder.Services.AddScoped<IBankService, BankService>();
builder.Services.AddScoped<IBudgetService, BudgetService>();
builder.Services.AddScoped<ISystemConfigService, SystemConfigService>();
builder.Services.AddScoped<IAuditLogService, AuditLogService>();
builder.Services.AddScoped<IChequeService, ChequeService>();
builder.Services.AddScoped<IDevToolsService, DevToolsService>();

// Health checks
builder.Services.AddHealthChecks()
    .AddDbContextCheck<AppDBContext>();

// Authentication
var jwtSection = builder.Configuration.GetSection("Jwt");
var signingKey = jwtSection["SigningKey"];

if (!string.IsNullOrWhiteSpace(signingKey))
{
    builder.Services.AddAuthentication(options =>
    {
        options.DefaultAuthenticateScheme = JwtBearerDefaults.AuthenticationScheme;
        options.DefaultChallengeScheme = JwtBearerDefaults.AuthenticationScheme;
    })
    .AddJwtBearer(options =>
    {
        options.TokenValidationParameters = new TokenValidationParameters
        {
            ValidateIssuer = true,
            ValidateAudience = true,
            ValidateLifetime = true,
            ValidateIssuerSigningKey = true,
            ValidIssuer = jwtSection["Issuer"],
            ValidAudience = jwtSection["Audience"],
            IssuerSigningKey = new SymmetricSecurityKey(Encoding.UTF8.GetBytes(signingKey))
        };
    });
}

builder.Services.AddAuthorization();

var app = builder.Build();

// Configure the HTTP request pipeline.
app.UseMiddleware<ExceptionHandlingMiddleware>();

if (app.Environment.IsDevelopment())
{
    app.UseSwagger();
    app.UseSwaggerUI();
}

app.UseHttpsRedirection();

app.UseMiddleware<ApiKeyMiddleware>();

app.UseAuthentication();
app.UseAuthorization();

app.MapControllers();
app.MapHealthChecks("/health");

app.Run();