using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Shared.DTO.VariablesEntorno;

namespace Shared.Utils
{
    public static class ObtenerVariablesEntorno
    {
        public static Dictionary<string, string> GetVarEnviromentDict(string key)
        {
            string? variableEnv = Environment.GetEnvironmentVariable(key);
            if (string.IsNullOrWhiteSpace(variableEnv))
                throw new ArgumentException($"La variable de entorno '{key}' no está definida.");

            var dictionary = new Dictionary<string, string>(StringComparer.OrdinalIgnoreCase);
            foreach (var data in variableEnv.Split(';', StringSplitOptions.RemoveEmptyEntries))
            {
                int div = data.IndexOf('=');
                if (div <= 0 || div >= data.Length - 1) continue; // Evita keys o values vacíos o sin '='

                var keyValue = data[..div].Trim().ToUpperInvariant();
                var value = data[(div + 1)..].Trim();

                if (!string.IsNullOrEmpty(keyValue) && !string.IsNullOrEmpty(value))
                    dictionary[keyValue] = value;
            }
            return dictionary;
        }

        public static void AmbientarCredencialesDGA(string env)
        {
            var dictEnv = GetVarEnviromentDict(env);

            dictEnv.TryGetValue("RUTEMPRESA", out string? rutEmpresa);
            CredencialDGA.RutEmpresa = rutEmpresa ?? string.Empty;

            dictEnv.TryGetValue("RUTUSUARIO", out string? rutUsuario);
            CredencialDGA.RutUsuario = rutUsuario ?? string.Empty;

            dictEnv.TryGetValue("PASSWORD", out string? password);
            CredencialDGA.Password = password ?? string.Empty;
        }

        public static void AmbientarConexionBd(string env)
        {
            BdConexion.StringConnection = Environment.GetEnvironmentVariable(env) ?? string.Empty;
        }

        public static void AmbientarApiUrlNexus(string env)
        {
            var dictEnv = GetVarEnviromentDict(env);

            dictEnv.TryGetValue("URL", out string? url);
            NexusApiUrl.ApiUrl = url ?? string.Empty;

            dictEnv.TryGetValue("APIKEY", out string? apiKey);
            NexusApiUrl.ApiKey = apiKey ?? string.Empty;

            dictEnv.TryGetValue("VERSION", out string? version);
            NexusApiUrl.Version = version ?? string.Empty;

            dictEnv.TryGetValue("DATASOURCE", out string? dataSource);
            NexusApiUrl.DataSource = dataSource ?? string.Empty;

            dictEnv.TryGetValue("RESOLUTION", out string? resolution);
            NexusApiUrl.Resolution = resolution ?? string.Empty;
        }

        public static void AmbientarUrlApiSubterranea(string env)
        {
            var dictEnv = GetVarEnviromentDict(env);

            dictEnv.TryGetValue("URL", out string? url);
            SubterraneaApiUrl.BaseUrl = url ?? string.Empty;

            dictEnv.TryGetValue("ENDPOINT", out string? endpoint);
            SubterraneaApiUrl.EndPoint = endpoint ?? string.Empty;
        }
    }
}