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OpenCand.API/Repository/BaseRepository.cs

@@ -0,0 +1,17 @@
+using Microsoft.Extensions.Configuration;
+using Npgsql;
+
+namespace OpenCand.Repository
+{
+    public abstract class BaseRepository
+    {
+        protected string ConnectionString { get; private set; }
+        protected NpgsqlConnection? Connection { get; private set; }
+
+        public BaseRepository(IConfiguration configuration)
+        {
+            ConnectionString = configuration["DatabaseSettings:ConnectionString"] ?? 
+                throw new ArgumentNullException("Connection string not found in configuration");
+        }
+    }
+}

OpenCand.API/Repository/BemCandidatoRepository.cs

@@ -0,0 +1,26 @@
+using Dapper;
+using Npgsql;
+using OpenCand.Core.Models;
+
+namespace OpenCand.Repository
+{
+    public class BemCandidatoRepository : BaseRepository
+    {
+        public BemCandidatoRepository(IConfiguration configuration) : base(configuration)
+        {
+        }
+
+        public async Task<List<BemCandidato>?> GetBemCandidatoAsync(Guid idcandidato)
+        {
+            using (var connection = new NpgsqlConnection(ConnectionString))
+            {
+                var query = @"
+                    SELECT * FROM bem_candidato
+                    WHERE idcandidato = @idcandidato
+                    ORDER BY ano DESC, ordembem ASC;";
+
+                return (await connection.QueryAsync<BemCandidato>(query, new { idcandidato })).AsList();
+            }
+        }
+    }
+}

OpenCand.API/Repository/CandidatoRepository.cs

@@ -0,0 +1,61 @@
+using Dapper;
+using Npgsql;
+using OpenCand.Core.Models;
+
+namespace OpenCand.Repository
+{
+    public class CandidatoRepository : BaseRepository
+    {
+        public CandidatoRepository(IConfiguration configuration) : base(configuration)
+        {
+        }
+
+        public async Task<List<Candidato>> SearchCandidatosAsync(string query)
+        {
+            using (var connection = new NpgsqlConnection(ConnectionString))
+            {
+                return (await connection.QueryAsync<Candidato>(@"
+                    SELECT idcandidato, cpf, nome, datanascimento, email, sexo, estadocivil, escolaridade, ocupacao
+                    FROM candidato
+                    WHERE nome ILIKE '%' || @query || '%' OR
+                          cpf ILIKE '%' || @query || '%' OR
+                          email ILIKE '%' || @query || '%'
+                    LIMIT 10;",
+                    new { query })).AsList();
+            }
+        }
+
+        public async Task<Candidato?> GetCandidatoAsync(Guid idcandidato)
+        {
+            using (var connection = new NpgsqlConnection(ConnectionString))
+            {
+                return await connection.QueryFirstOrDefaultAsync<Candidato>(@"
+                    SELECT * FROM candidato
+                    WHERE idcandidato = @idcandidato;",
+                    new { idcandidato });
+            }
+        }
+
+        public async Task<List<CandidatoMapping>?> GetCandidatoMappingById(Guid idcandidato)
+        {
+            using (var connection = new NpgsqlConnection(ConnectionString))
+            {
+                var query = @"
+                    SELECT * FROM candidato_mapping
+                    WHERE idcandidato = @idcandidato";
+                return (await connection.QueryAsync<CandidatoMapping>(query, new { idcandidato })).AsList();
+            }
+        }
+
+        public async Task<List<RedeSocial>?> GetCandidatoRedeSocialById(Guid idcandidato)
+        {
+            using (var connection = new NpgsqlConnection(ConnectionString))
+            {
+                var query = @"
+                    SELECT * FROM rede_social
+                    WHERE idcandidato = @idcandidato";
+                return (await connection.QueryAsync<RedeSocial>(query, new { idcandidato })).AsList();
+            }
+        }
+    }
+}

OpenCand.API/Repository/OpenCandRepository.cs

@@ -0,0 +1,29 @@
+using Dapper;
+using Npgsql;
+using OpenCand.Core.Models;
+using OpenCand.Repository;
+
+namespace OpenCand.API.Repository
+{
+    public class OpenCandRepository : BaseRepository
+    {
+        public OpenCandRepository(IConfiguration configuration) : base(configuration)
+        {
+        }
+
+        public async Task<OpenCandStats> GetOpenCandStatsAsync()
+        {
+            using (var connection = new NpgsqlConnection(ConnectionString))
+            {
+                var stats = await connection.QueryFirstOrDefaultAsync<OpenCandStats>(@"
+                    SELECT 
+                        (SELECT COUNT(idcandidato) FROM candidato) AS TotalCandidatos,
+                        (SELECT COUNT(*) FROM bem_candidato) AS TotalBemCandidatos,
+                        (SELECT SUM(valor) FROM bem_candidato) AS TotalValorBemCandidatos,
+                        (SELECT COUNT(*) FROM rede_social) AS TotalRedesSociais,
+                        (SELECT COUNT(DISTINCT ano) FROM bem_candidato) AS TotalEleicoes;");
+                return stats ?? new OpenCandStats();
+            }
+        }
+    }
+}