Innovenergy_trunk/csharp/App/Backend/Database/Read.cs

97 lines
3.3 KiB
C#

using InnovEnergy.App.Backend.DataTypes;
using InnovEnergy.App.Backend.Relations;
namespace InnovEnergy.App.Backend.Database;
public static partial class Db
{
//In this file, we provide all the methods that can be used in order to retrieve information from the database (read)
public static Folder? GetFolderById(Int64? id)
{
return Folders
.FirstOrDefault(f => f.Id == id);
}
public static Installation? GetInstallationById(Int64? id)
{
return Installations
.FirstOrDefault(i => i.Id == id);
}
public static UserAction? GetActionById(Int64? id)
{
return UserActions
.FirstOrDefault(i => i.Id == id);
}
public static User? GetUserById(Int64? id)
{
return Users
.FirstOrDefault(u => u.Id == id);
}
public static User? GetUserByEmail(String email)
{
return Users
.FirstOrDefault(u => u.Email == email);
}
public static Session? GetSession(String token)
{
//This method is called in almost every controller function.
//After logging in, the frontend receives a session object which contains a token. For all the future REST API calls, this token is used for session authentication.
var session = Sessions
.FirstOrDefault(s => s.Token == token);
if (session is null)
{
return null;
}
if (!session.Valid)
{
Delete(session);
return null;
}
return session;
}
// ── Report Queries ────────────────────────────────────────────────
public static List<WeeklyReportSummary> GetWeeklyReports(Int64 installationId)
=> WeeklyReports
.Where(r => r.InstallationId == installationId)
.OrderByDescending(r => r.PeriodStart)
.ToList();
public static List<WeeklyReportSummary> GetWeeklyReportsForMonth(Int64 installationId, Int32 year, Int32 month)
{
var monthStart = $"{year:D4}-{month:D2}-01";
var monthEnd = month == 12 ? $"{year + 1:D4}-01-01" : $"{year:D4}-{month + 1:D2}-01";
return WeeklyReports
.Where(r => r.InstallationId == installationId)
.ToList()
.Where(r => String.Compare(r.PeriodStart, monthStart, StringComparison.Ordinal) >= 0
&& String.Compare(r.PeriodStart, monthEnd, StringComparison.Ordinal) < 0)
.ToList();
}
public static List<MonthlyReportSummary> GetMonthlyReports(Int64 installationId)
=> MonthlyReports
.Where(r => r.InstallationId == installationId)
.OrderByDescending(r => r.Year)
.ThenByDescending(r => r.Month)
.ToList();
public static List<MonthlyReportSummary> GetMonthlyReportsForYear(Int64 installationId, Int32 year)
=> MonthlyReports
.Where(r => r.InstallationId == installationId && r.Year == year)
.ToList();
public static List<YearlyReportSummary> GetYearlyReports(Int64 installationId)
=> YearlyReports
.Where(r => r.InstallationId == installationId)
.OrderByDescending(r => r.Year)
.ToList();
}