using Api.Clients.Ai;
using Api.Clients.Ai.Contracts;
using Api.Clients.Api;
using Api.Clients.Api.Contracts;
using CvMatcher.Data;
using CvMatcher.Data.Repositories;
using CvMatcher.Data.Repositories.Contracts;
using Api.Services;
using Api.Services.Contracts;
using CvMatcher.Models.Settings;
using CvSearch.Data;
using Microsoft.EntityFrameworkCore;
using Refit;
using Serilog;
using Common.Settings;
using PageFetcher.Models;
using StartupHelpers;
using System.Reflection;

StartupExtensions.LoadDotEnvFile();

const string ServiceName = "cv-matcher-api";
var appVersion = StartupExtensions.GetApplicationVersion(Assembly.GetExecutingAssembly());

try
{
    var builder = WebApplication.CreateBuilder(args);

    builder.ConfigureJsonSerilog(ServiceName, appVersion);
    Log.Information("Starting {Service} version {AppVersion}", ServiceName, appVersion);

    builder.AddAzureKeyVaultIfConfigured();

    builder.Services.Configure<DatabaseSettings>(builder.Configuration.GetSection("Database"));
    builder.Services.Configure<RagApiSettings>(builder.Configuration.GetSection("RagApi"));
    builder.Services.Configure<InternalApiSettings>(builder.Configuration.GetSection("InternalApi"));
    builder.Services.Configure<CvMatcher.Models.Settings.AiSettings>(builder.Configuration.GetSection("Ai"));
    builder.Services.Configure<MatcherSettings>(builder.Configuration.GetSection("Matcher"));
    builder.Services.Configure<JobSearchSettings>(builder.Configuration.GetSection("JobSearch"));
    builder.Services.Configure<PageFetcherApiSettings>(builder.Configuration.GetSection("PageFetcherApi"));

    builder.Services.AddRefitClient<IPageFetcherApiClient>()
        .ConfigureHttpClient((sp, c) =>
        {
            var settings = sp.GetRequiredService<Microsoft.Extensions.Options.IOptions<PageFetcherApiSettings>>().Value;
            c.BaseAddress = new Uri(settings.BaseUrl.TrimEnd('/') + "/");
            if (!string.IsNullOrWhiteSpace(settings.InternalApiKey))
                c.DefaultRequestHeaders.Add("X-Internal-Api-Key", settings.InternalApiKey);
        });

    builder.Services.AddRefitClient<IRefitRagApi>()
        .ConfigureHttpClient((sp, c) =>
        {
            var settings = sp.GetRequiredService<Microsoft.Extensions.Options.IOptions<RagApiSettings>>().Value;
            c.BaseAddress = new Uri(settings.BaseUrl.TrimEnd('/') + "/");
            if (!string.IsNullOrWhiteSpace(settings.InternalApiKey))
            {
                c.DefaultRequestHeaders.Add("X-Internal-Api-Key", settings.InternalApiKey);
            }
        });

    builder.Services.AddScoped<IRagApiClient, RagApiClient>();
    builder.Services.AddHttpClient<IMatcherAiClient, MatcherAiClient>();
    builder.Services.AddScoped<IJobTextExtractor, JobTextExtractor>();

    builder.Services.AddDbContext<CvMatcherDbContext>(options =>
    {
        var configuration = builder.Configuration;
        var connectionString = builder.Services.GetConfiguredDbConnectionString(configuration);

        options.UseSqlServer(connectionString, sql =>
        {
            sql.MigrationsHistoryTable(CvMatcherDbContext.MigrationTableName, CvMatcherDbContext.SchemaName);
            sql.MigrationsAssembly("cv-matcher-data");
        });
    });

    builder.Services.AddDbContext<CvSearchDbContext>(options =>
    {
        var connectionString = builder.Services.GetConfiguredDbConnectionString(builder.Configuration);
        options.UseSqlServer(connectionString, sql =>
        {
            sql.MigrationsAssembly("cv-search-data");
            sql.MigrationsHistoryTable(CvSearchDbContext.MigrationTableName, CvSearchDbContext.SchemaName);
        });
    });

    builder.Services.AddScoped<IMatcherRepository, EfMatcherRepository>();
    builder.Services.AddScoped<IAiPromptsRepository, EfAiPromptsRepository>();
    builder.Services.AddScoped<ICvMatcherService, CvMatcherService>();
    builder.Services.AddScoped<IJobTokenService, JobTokenService>();

    builder.Services.AddControllers();
    builder.Services.AddSwaggerWithXmlComments(Assembly.GetExecutingAssembly(), ServiceName);

    var app = builder.Build();

    app.LogStartupDiagnostics(ServiceName);

    using (var scope = app.Services.CreateScope())
    {
        var repository = scope.ServiceProvider.GetRequiredService<IMatcherRepository>();
        await repository.InitializeAsync(CancellationToken.None);
    }

    app.UseDefaultSerilogRequestLogging();
    app.UseJsonExceptionHandler(ServiceName);
    app.UseInternalApiKeyProtection();
    app.UseSwaggerInDevelopment(ServiceName, ServiceName);

    app.MapControllers();

    Log.Information("Running EF Core migrations if any");
    using (var scope = app.Services.CreateScope())
    {
        var db = scope.ServiceProvider.GetRequiredService<CvMatcherDbContext>();
        db.Database.Migrate();
    }
    using (var scope = app.Services.CreateScope())
    {
        var db = scope.ServiceProvider.GetRequiredService<CvSearchDbContext>();
        db.Database.Migrate();
    }

    Log.Information("{Service} startup complete", ServiceName);
    app.Run();
}
catch (Exception ex)
{
    Log.Fatal(ex, "{Service} terminated unexpectedly", ServiceName);
}
finally
{
    Log.Information("Shutting down {Service}", ServiceName);
    Log.CloseAndFlush();
}
