85 lines
3.2 KiB
C#
85 lines
3.2 KiB
C#
using System.Text.Json;
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using HopFrame.Core.Config;
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using Microsoft.EntityFrameworkCore;
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using Microsoft.Extensions.Logging;
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namespace HopFrame.Core.Services.Implementations;
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internal sealed class ContextExplorer(HopFrameConfig config, IServiceProvider provider, ILogger<ContextExplorer> logger) : IContextExplorer {
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public IEnumerable<TableConfig> GetTables() {
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foreach (var context in config.Contexts) {
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foreach (var table in context.Tables) {
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if (table.Ignored) continue;
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yield return table;
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}
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}
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}
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public TableConfig? GetTable(string tableDisplayName) {
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foreach (var context in config.Contexts) {
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var table = context.Tables.FirstOrDefault(table => table.DisplayName.Equals(tableDisplayName, StringComparison.CurrentCultureIgnoreCase));
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if (table is null) continue;
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SeedTableData(table);
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return table;
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}
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return null;
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}
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public TableConfig? GetTable(Type tableEntity) {
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foreach (var context in config.Contexts) {
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var table = context.Tables.FirstOrDefault(table => table.TableType == tableEntity);
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if (table is null) continue;
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SeedTableData(table);
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return table;
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}
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return null;
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}
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public ITableManager? GetTableManager(string tablePropertyName) {
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foreach (var context in config.Contexts) {
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var table = context.Tables.FirstOrDefault(table => table.PropertyName == tablePropertyName);
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if (table is null) continue;
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var dbContext = provider.GetService(context.ContextType) as DbContext;
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if (dbContext is null) return null;
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var type = typeof(TableManager<>).MakeGenericType(table.TableType);
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return Activator.CreateInstance(type, dbContext, table, this, provider) as ITableManager;
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}
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return null;
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}
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private void SeedTableData(TableConfig table) {
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if (table.Seeded) return;
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var dbContext = (provider.GetService(table.ContextConfig.ContextType) as DbContext)!;
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var entity = dbContext.Model.FindEntityType(table.TableType)!;
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foreach (var propertyConfig in table.Properties) {
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if (propertyConfig.IsListingProperty) continue;
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var prop = entity.FindProperty(propertyConfig.Info.Name);
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if (prop is not null) continue;
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var nav = entity.FindNavigation(propertyConfig.Info.Name);
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if (nav is null) continue;
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propertyConfig.IsRelation = true;
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propertyConfig.IsRequired = nav.ForeignKey.IsRequired;
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propertyConfig.IsEnumerable = nav.IsCollection;
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}
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foreach (var property in entity.GetProperties()) {
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var propConfig = table.Properties
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.Where(prop => !prop.IsListingProperty)
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.SingleOrDefault(prop => prop.Info == property.PropertyInfo);
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if (propConfig is null) continue;
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propConfig.IsRequired = !property.IsNullable;
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}
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logger.LogInformation("Extracted information for table '" + table.PropertyName + "'");
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table.Seeded = true;
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}
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} |