355 lines
14 KiB
C#
355 lines
14 KiB
C#
using System.Threading.Tasks;
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using System.Linq;
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using System.IO;
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using Microsoft.EntityFrameworkCore;
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using Microsoft.Extensions.Logging;
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using AyaNova.Util;
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using AyaNova.Api.ControllerHelpers;
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using AyaNova.Models;
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using PuppeteerSharp;
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namespace AyaNova.Biz
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{
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internal class ReportBiz : BizObject, ISearchAbleObject
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{
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internal ReportBiz(AyContext dbcontext, long currentUserId, long userTranslationId, AuthorizationRoles UserRoles)
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{
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ct = dbcontext;
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UserId = currentUserId;
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UserTranslationId = userTranslationId;
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CurrentUserRoles = UserRoles;
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BizType = AyaType.Report;
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}
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internal static ReportBiz GetBiz(AyContext ct, Microsoft.AspNetCore.Http.HttpContext httpContext = null)
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{
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if (httpContext != null)
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return new ReportBiz(ct, UserIdFromContext.Id(httpContext.Items), UserTranslationIdFromContext.Id(httpContext.Items), UserRolesFromContext.Roles(httpContext.Items));
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else
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return new ReportBiz(ct, 1, ServerBootConfig.AYANOVA_DEFAULT_TRANSLATION_ID, AuthorizationRoles.BizAdminFull);
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}
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////////////////////////////////////////////////////////////////////////////////////////////////
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//EXISTS
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internal async Task<bool> ExistsAsync(long id)
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{
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return await ct.Report.AnyAsync(z => z.Id == id);
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}
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////////////////////////////////////////////////////////////////////////////////////////////////
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//CREATE
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//
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internal async Task<Report> CreateAsync(Report newObject)
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{
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await ValidateAsync(newObject, null);
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if (HasErrors)
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return null;
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else
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{
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await ct.Report.AddAsync(newObject);
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await ct.SaveChangesAsync();
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await EventLogProcessor.LogEventToDatabaseAsync(new Event(UserId, newObject.Id, BizType, AyaEvent.Created), ct);
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await SearchIndexAsync(newObject, true);
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return newObject;
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}
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}
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////////////////////////////////////////////////////////////////////////////////////////////////
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//DUPLICATE
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//
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internal async Task<Report> DuplicateAsync(long id)
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{
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Report dbObject = await GetAsync(id, false);
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if (dbObject == null)
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{
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AddError(ApiErrorCode.NOT_FOUND, "id");
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return null;
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}
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Report newObject = new Report();
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string newUniqueName = string.Empty;
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bool NotUnique = true;
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long l = 1;
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do
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{
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newUniqueName = Util.StringUtil.UniqueNameBuilder(dbObject.Name, l++, 255);
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NotUnique = await ct.Report.AnyAsync(z => z.Name == newUniqueName);
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} while (NotUnique);
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newObject.Name = newUniqueName;
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newObject.Id = 0;
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newObject.Concurrency = 0;
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await ct.Report.AddAsync(newObject);
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await ct.SaveChangesAsync();
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await EventLogProcessor.LogEventToDatabaseAsync(new Event(UserId, newObject.Id, BizType, AyaEvent.Created), ct);
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await SearchIndexAsync(newObject, true);
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return newObject;
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}
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////////////////////////////////////////////////////////////////////////////////////////////////
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//GET
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//
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internal async Task<Report> GetAsync(long id, bool logTheGetEvent = true)
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{
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var ret = await ct.Report.SingleOrDefaultAsync(z => z.Id == id);
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if (logTheGetEvent && ret != null)
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await EventLogProcessor.LogEventToDatabaseAsync(new Event(UserId, id, BizType, AyaEvent.Retrieved), ct);
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return ret;
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}
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////////////////////////////////////////////////////////////////////////////////////////////////
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//UPDATE
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//
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internal async Task<Report> PutAsync(Report putObject)
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{
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Report dbObject = await ct.Report.SingleOrDefaultAsync(z => z.Id == putObject.Id);
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if (dbObject == null)
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{
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AddError(ApiErrorCode.NOT_FOUND, "id");
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return null;
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}
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Report SnapshotOfOriginalDBObj = new Report();
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CopyObject.Copy(dbObject, SnapshotOfOriginalDBObj);
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CopyObject.Copy(putObject, dbObject, "Id");
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ct.Entry(dbObject).OriginalValues["Concurrency"] = putObject.Concurrency;
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await ValidateAsync(dbObject, SnapshotOfOriginalDBObj);
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if (HasErrors) return null;
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try
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{
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await ct.SaveChangesAsync();
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}
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catch (DbUpdateConcurrencyException)
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{
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if (!await ExistsAsync(putObject.Id))
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AddError(ApiErrorCode.NOT_FOUND);
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else
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AddError(ApiErrorCode.CONCURRENCY_CONFLICT);
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return null;
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}
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await EventLogProcessor.LogEventToDatabaseAsync(new Event(UserId, dbObject.Id, BizType, AyaEvent.Modified), ct);
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await SearchIndexAsync(dbObject, false);
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return dbObject;
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}
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////////////////////////////////////////////////////////////////////////////////////////////////
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//DELETE
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//
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internal async Task<bool> DeleteAsync(long id)
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{
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using (var transaction = await ct.Database.BeginTransactionAsync())
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{
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try
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{
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Report dbObject = await ct.Report.SingleOrDefaultAsync(z => z.Id == id);
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ValidateCanDelete(dbObject);
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if (HasErrors)
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return false;
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if (HasErrors)
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return false;
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ct.Report.Remove(dbObject);
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await ct.SaveChangesAsync();
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await EventLogProcessor.DeleteObjectLogAsync(UserId, BizType, dbObject.Id, dbObject.Name, ct);
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await Search.ProcessDeletedObjectKeywordsAsync(dbObject.Id, BizType, ct);
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await FileUtil.DeleteAttachmentsForObjectAsync(BizType, dbObject.Id, ct);
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await transaction.CommitAsync();
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}
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catch
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{
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//Just re-throw for now, let exception handler deal, but in future may want to deal with this more here
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throw;
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}
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return true;
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}
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}
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////////////////////////////////////////////////////////////////////////////////////////////////
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//SEARCH
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//
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private async Task SearchIndexAsync(Report obj, bool isNew)
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{
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var SearchParams = new Search.SearchIndexProcessObjectParameters(UserTranslationId, obj.Id, BizType);
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SearchParams.AddText(obj.Notes).AddText(obj.Name);
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if (isNew)
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await Search.ProcessNewObjectKeywordsAsync(SearchParams);
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else
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await Search.ProcessUpdatedObjectKeywordsAsync(SearchParams);
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}
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public async Task<Search.SearchIndexProcessObjectParameters> GetSearchResultSummary(long id)
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{
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var obj = await ct.Report.SingleOrDefaultAsync(z => z.Id == id);
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var SearchParams = new Search.SearchIndexProcessObjectParameters();
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if (obj != null)
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SearchParams.AddText(obj.Notes).AddText(obj.Name);
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return SearchParams;
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}
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////////////////////////////////////////////////////////////////////////////////////////////////
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//VALIDATION
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//
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private async Task ValidateAsync(Report proposedObj, Report currentObj)
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{
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bool isNew = currentObj == null;
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//Name required
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if (string.IsNullOrWhiteSpace(proposedObj.Name))
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AddError(ApiErrorCode.VALIDATION_REQUIRED, "Name");
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//Name must be less than 255 characters
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if (proposedObj.Name.Length > 255)
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AddError(ApiErrorCode.VALIDATION_LENGTH_EXCEEDED, "Name", "255 max");
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//If name is otherwise OK, check that name is unique
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if (!PropertyHasErrors("Name"))
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{
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//Use Any command is efficient way to check existance, it doesn't return the record, just a true or false
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if (await ct.Report.AnyAsync(z => z.Name == proposedObj.Name && z.Id != proposedObj.Id))
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{
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AddError(ApiErrorCode.VALIDATION_NOT_UNIQUE, "Name");
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}
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}
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}
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private async void ValidateCanDelete(Report inObj)
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{
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//TODO: this is shitty, needs to mention notifications to be maximally useful
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if (await ct.NotifySubscription.AnyAsync(z => z.AttachReportId == inObj.Id) == true)
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{
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AddError(ApiErrorCode.INVALID_OPERATION, null, "LT:ErrorDBForeignKeyViolation");
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return;
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}
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}
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////////////////////////////////////////////////////////////////////////////////////////////////
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//RENDER
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//
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/*
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Both a route (for external calls) that returns a report and an internal biz object that is used by notification for the same purpose
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so the route just calls the biz object which handles processing, getting data, checking rights and then making the report and either attaching it to an email (maybe I do need that temp server folder after all)
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or return to route to return to Client end
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*/
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public async Task<RenderedReport> RenderReport(long id, long[] objectidarray, string apiUrl, long overrideUserId = 0)
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{
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var log = AyaNova.Util.ApplicationLogging.CreateLogger("ReportBiz::RenderReport");
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//get report, vet security, see what we need before init in case of issue
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var report = await ct.Report.FirstOrDefaultAsync(z => z.Id == id);
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if (report == null)
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{
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AddError(ApiErrorCode.NOT_FOUND, "id");
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return null;
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}
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AuthorizationRoles effectiveRoles = CurrentUserRoles;
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if (overrideUserId != 0)
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{
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var effectiveUser=await ct.User.FirstOrDefaultAsync(z => z.Id == overrideUserId);
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if (effectiveUser==null)
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{
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var msg = $"Override user id specifies user that doesn't exist({overrideUserId}) cannot generate report {report.Name}";
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log.LogError(msg);
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AddError(ApiErrorCode.NOT_FOUND, "UserId", msg);
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return null;
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}
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effectiveRoles=effectiveUser.Roles;
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}
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//initialization
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log.LogDebug("Initializing report system");
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var ReportJSFolderPath = Path.Combine(ServerBootConfig.AYANOVA_CONTENT_ROOT_PATH, "resource", "rpt");
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var lo = new LaunchOptions { Headless = true };
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bool isWindows = System.Runtime.InteropServices.RuntimeInformation.IsOSPlatform(System.Runtime.InteropServices.OSPlatform.Windows);
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if (!isWindows)
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{
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log.LogDebug($"Not Windows: setting executable path for chrome to expected '/usr/bin/chromium-browser'");
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lo.ExecutablePath = "/usr/bin/chromium-browser";//this is the default path for docker based alpine dist, but maybe not others, need to make a config setting likely
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lo.Args = new string[] { "--no-sandbox" };
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}
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else
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{
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log.LogDebug($"Windows: Calling browserFetcher download async now:");
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await new BrowserFetcher().DownloadAsync(BrowserFetcher.DefaultRevision);
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}
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log.LogDebug($"Launching headless Chrome now:");
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using (var browser = await Puppeteer.LaunchAsync(lo))
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using (var page = await browser.NewPageAsync())
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{
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log.LogDebug($"Preparing page: adding base reporting scripts to page");
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//Add Handlebars JS for compiling and presenting
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await page.AddScriptTagAsync(new AddTagOptions() { Path = Path.Combine(ReportJSFolderPath, "ay-hb.js") });
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//add Marked for markdown processing
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await page.AddScriptTagAsync(new AddTagOptions() { Path = Path.Combine(ReportJSFolderPath, "ay-md.js") });
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//add stock helpers
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await page.AddScriptTagAsync(new AddTagOptions() { Path = Path.Combine(ReportJSFolderPath, "ay-report.js") });
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//execute to add to handlebars
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await page.EvaluateExpressionAsync("ayRegisterHelpers();");
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log.LogDebug($"Preparing page: adding this report's scripts, style and templates to page");
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//compile and run handlebars template
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var compileScript = $"Handlebars.compile({reportTemplate})({reportData});";
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var resultHTML = await page.EvaluateExpressionAsync<string>(compileScript);
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//render report as HTML
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await page.SetContentAsync(resultHTML);
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//add style (after page or it won't work)
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await page.AddStyleTagAsync(new AddTagOptions { Content = reportCSS });
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//useful for debugging purposes only
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//var pagecontent = await page.GetContentAsync();
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//render to pdf and return
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var pdfBuffer = await page.PdfDataAsync();
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log.LogInformation($"returning results now:");
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return new FileContentResult(pdfBuffer, "application/pdf");
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}
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return null;
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}
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public class RenderedReport
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{
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public string MimeType { get; set; }
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public byte[] RenderedOutput { get; set; }
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public RenderedReport()
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{
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MimeType = "application/pdf";
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RenderedOutput = null;
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}
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}
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////////////////////////////////////////////////////////////////////////////////////////////////
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//JOB / OPERATIONS
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//
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//Other job handlers here...
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/////////////////////////////////////////////////////////////////////
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}//eoc
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}//eons
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