232 lines
10 KiB
C#
232 lines
10 KiB
C#
using Microsoft.EntityFrameworkCore;
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using Elwig.Models;
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using System.Linq;
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using System.Threading.Tasks;
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using System.IO;
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using System;
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using System.Windows;
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using Microsoft.Extensions.Logging;
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using Microsoft.Data.Sqlite;
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using System.Text.RegularExpressions;
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using System.Collections.Generic;
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namespace Elwig.Helpers {
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public class AppDbContext : DbContext {
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public DbSet<Country> Countries { get; private set; }
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public DbSet<Currency> Currencies { get; private set; }
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public DbSet<AT_Gem> Gemeinden { get; private set; }
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public DbSet<AT_Kg> Katastralgemeinden { get; private set; }
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public DbSet<AT_Ort> Orte { get; private set; }
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public DbSet<AT_Plz> Postleitzahlen { get; private set; }
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public DbSet<AT_PlzDest> PlzDestinations { get; private set; }
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public DbSet<PostalDest> PostalDestinations { get; private set; }
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public DbSet<WineOrigin> WineOrigins { get; private set; }
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public DbSet<WineQualLevel> WineQualityLevels { get; private set; }
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public DbSet<WineVar> WineVarieties { get; private set; }
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public DbSet<ClientParam> ClientParameters { get; private set; }
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public DbSet<WbKg> WbKgs { get; private set; }
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public DbSet<WbRd> WbRde { get; private set; }
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public DbSet<WineAttr> WineAttributes { get; private set; }
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public DbSet<WineCult> WineCultivations { get; private set; }
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public DbSet<Branch> Branches { get; private set; }
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public DbSet<AreaComType> AreaCommitmentTypes { get; private set; }
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public DbSet<Member> Members { get; private set; }
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public DbSet<BillingAddr> BillingAddresses { get; private set; }
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public DbSet<MemberTelNr> MemberTelephoneNrs { get; private set; }
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public DbSet<AreaCom> AreaCommitments { get; private set; }
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public DbSet<Season> Seasons { get; private set; }
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public DbSet<Modifier> Modifiers { get; private set; }
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public DbSet<Delivery> Deliveries { get; private set; }
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public DbSet<DeliveryPart> DeliveryParts { get; private set; }
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public DbSet<DeliveryPartAttr> DeliveryPartAttributes { get; private set; }
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public DbSet<DeliveryPartModifier> DeliveryPartModifiers { get; private set; }
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public DbSet<PaymentVar> PaymentVariants { get; private set; }
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public DbSet<PaymentMember> MemberPayments { get; private set; }
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public DbSet<Credit> Credits { get; private set; }
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private readonly StreamWriter? LogFile = null;
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public static DateTime LastWriteTime => File.GetLastWriteTime(App.Config.DatabaseFile);
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public DateTime SavedLastWriteTime { get; private set; }
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public bool HasBackendChanged => SavedLastWriteTime != LastWriteTime;
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public static string ConnectionString => $"Data Source=\"{App.Config.DatabaseFile}\"; Foreign Keys=True; Mode=ReadWrite; Cache=Default";
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public AppDbContext() {
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if (App.Config.DatabaseLog != null) {
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try {
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var file = File.Open(App.Config.DatabaseLog, FileMode.Append, FileAccess.Write, FileShare.Write);
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LogFile = new(file) {
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AutoFlush = true
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};
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} catch (Exception e) {
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MessageBox.Show($"Unable to open database log file:\n\n{e.Message}", "Database Log", MessageBoxButton.OK, MessageBoxImage.Error);
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}
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}
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SavedLastWriteTime = LastWriteTime;
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SavedChanges += OnSavedChanges;
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}
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public static SqliteConnection Connect() {
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var cnx = new SqliteConnection(ConnectionString);
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cnx.CreateFunction<string, string?, bool?>("REGEXP", (pattern, value) => value == null ? null : Regex.Match(value, pattern).Success, true);
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cnx.Open();
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return cnx;
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}
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public static async Task<SqliteConnection> ConnectAsync() {
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var cnx = new SqliteConnection(ConnectionString);
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cnx.CreateFunction<string, string?, bool?>("REGEXP", (pattern, value) => value == null ? null : Regex.Match(value, pattern).Success, true);
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await cnx.OpenAsync();
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return cnx;
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}
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protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder) {
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optionsBuilder.UseSqlite(ConnectionString);
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optionsBuilder.UseLazyLoadingProxies();
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optionsBuilder.LogTo(Log, LogLevel.Information);
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base.OnConfiguring(optionsBuilder);
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}
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public override void Dispose() {
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base.Dispose();
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LogFile?.Dispose();
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GC.SuppressFinalize(this);
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}
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private void OnSavedChanges(object? sender, SavedChangesEventArgs evt) {
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SavedLastWriteTime = LastWriteTime;
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}
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protected void Log(string msg) {
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LogFile?.WriteLine(msg);
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}
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public async Task<bool> MgNrExists(int mgnr) {
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return await Members.FindAsync(mgnr) != null;
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}
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public async Task<bool> FbNrExists(int fbnr) {
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return await AreaCommitments.FindAsync(fbnr) != null;
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}
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public async Task<bool> SortIdExists(string sortId) {
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return await WineVarieties.FindAsync(sortId) != null;
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}
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public async Task<bool> AttrIdExists(string attrId) {
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return await WineAttributes.FindAsync(attrId) != null;
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}
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public async Task<int> NextMgNr() {
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int c = await Members.Select(m => m.MgNr).MinAsync();
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(await Members.OrderBy(m => m.MgNr).Select(m => m.MgNr).ToListAsync())
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.ForEach(a => { if (a <= c + 1000) c = a; });
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return c + 1;
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}
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public async Task<int> NextFbNr() {
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int c = await AreaCommitments.Select(ac => ac.FbNr).MinAsync();
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(await AreaCommitments.OrderBy(ac => ac.FbNr).Select(ac => ac.FbNr).ToListAsync())
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.ForEach(a => { if (a <= c + 1000) c = a; });
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return c + 1;
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}
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public async Task<int> NextLNr(DateOnly date) {
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var dateStr = date.ToString("yyyy-MM-dd");
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int c = 0;
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(await Deliveries.Where(d => d.DateString == dateStr).Select(d => d.LNr).ToListAsync())
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.ForEach(a => { if (a <= c + 100) c = a; });
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return c + 1;
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}
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public async Task<int> NextDId(int year) {
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int c = 0;
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(await Deliveries.Where(d => d.Year == year).Select(d => d.DId).ToListAsync())
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.ForEach(a => { if (a <= c + 100) c = a; });
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return c + 1;
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}
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public async Task<int> NextDPNr(int year, int did) {
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int c = 0;
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(await DeliveryParts.Where(p => p.Year == year && p.DId == did).Select(d => d.DPNr).ToListAsync())
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.ForEach(a => { if (a <= c + 100) c = a; });
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return c + 1;
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}
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public async Task<WineQualLevel> GetWineQualityLevel(double kmw) {
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return await WineQualityLevels
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.Where(q => !q.IsPredicate && (q.MinKmw == null || q.MinKmw <= kmw))
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.OrderBy(q => q.MinKmw)
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.LastOrDefaultAsync();
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}
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public async Task UpdateDeliveryPartAttributes(DeliveryPart part, IEnumerable<WineAttr> attributes) {
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foreach (var a in WineAttributes) {
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var attr = part.PartAttributes.Where(pa => pa.AttrId == a.AttrId).FirstOrDefault();
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if (attributes.Contains(a)) {
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DeliveryPartAttr dpa = attr ?? this.CreateProxy<DeliveryPartAttr>();
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dpa.Year = part.Year;
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dpa.DId = part.DId;
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dpa.DPNr = part.DPNr;
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dpa.AttrId = a.AttrId;
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if (attr == null) {
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await AddAsync(dpa);
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} else {
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Update(dpa);
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}
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} else {
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if (attr != null) {
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Remove(attr);
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}
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}
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}
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}
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public async Task UpdateDeliveryPartModifiers(DeliveryPart part, IEnumerable<Modifier> modifiers) {
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foreach (var m in Modifiers.Where(m => m.Year == part.Year)) {
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var mod = part.PartModifiers.Where(pa => pa.ModId == m.ModId).FirstOrDefault();
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if (modifiers.Contains(m)) {
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DeliveryPartModifier dpm = mod ?? this.CreateProxy<DeliveryPartModifier>();
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dpm.Year = part.Year;
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dpm.DId = part.DId;
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dpm.DPNr = part.DPNr;
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dpm.ModId = m.ModId;
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if (mod == null) {
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await AddAsync(dpm);
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} else {
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Update(dpm);
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}
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} else {
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if (mod != null) {
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Remove(mod);
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}
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}
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}
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}
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public async Task<IEnumerable<(string, string, int, int, int)>> GetMemberBins(Member m, int year) {
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using var cnx = await ConnectAsync();
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var (rights, obligations) = await Billing.Billing.GetMemberRightsObligations(m.MgNr, year, cnx);
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var bins = await Billing.Billing.GetMemberBinWeights(m.MgNr, year, cnx);
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var list = new List<(string, string, int, int, int)>();
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foreach (var id in rights.Keys.Union(obligations.Keys).Union(bins.Keys)) {
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var s = await WineVarieties.FindAsync(id[..2]);
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var attrIds = id[2..];
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var a = await WineAttributes.Where(a => attrIds.Contains(a.AttrId)).ToListAsync();
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var name = (s?.Name ?? "") + (a.Count > 0 ? $" ({string.Join(" / ", a.Select(a => a.Name))})" : "");
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list.Add((
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id, name,
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rights.TryGetValue(id, out var v1) ? v1 : 0,
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obligations.TryGetValue(id, out var v2) ? v2 : 0,
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bins.TryGetValue(id, out var v3) ? v3 : 0
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));
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}
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return list;
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}
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}
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}
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