public async Task <ImportResult> ImportSystem(DataFileSystem data, PKSystem system, ulong accountId)
{
// TODO: make atomic, somehow - we'd need to obtain one IDbConnection and reuse it
// which probably means refactoring SystemStore.Save and friends etc
var result = new ImportResult {
AddedNames = new List <string>(),
ModifiedNames = new List <string>(),
Success = true // Assume success unless indicated otherwise
};
var dataFileToMemberMapping = new Dictionary <string, PKMember>();
var unmappedMembers = new List <DataFileMember>();
// If we don't already have a system to save to, create one
if (system == null)
{
system = await _systems.Create(data.Name);
}
result.System = system;
// Apply system info
system.Name = data.Name;
if (data.Description != null)
{
system.Description = data.Description;
}
if (data.Tag != null)
{
system.Tag = data.Tag;
}
if (data.AvatarUrl != null)
{
system.AvatarUrl = data.AvatarUrl;
}
if (data.TimeZone != null)
{
system.UiTz = data.TimeZone ?? "UTC";
}
await _systems.Save(system);
// Make sure to link the sender account, too
await _systems.Link(system, accountId);
// Determine which members already exist and which ones need to be created
var existingMembers = await _members.GetBySystem(system);
foreach (var d in data.Members)
{
// Try to look up the member with the given ID
var match = existingMembers.FirstOrDefault(m => m.Hid.Equals(d.Id));
if (match == null)
{
match = existingMembers.FirstOrDefault(m => m.Name.Equals(d.Name)); // Try with the name instead
}
if (match != null)
{
dataFileToMemberMapping.Add(d.Id, match); // Relate the data file ID to the PKMember for importing switches
result.ModifiedNames.Add(d.Name);
}
else
{
unmappedMembers.Add(d); // Track members that weren't found so we can create them all
result.AddedNames.Add(d.Name);
}
}
// If creating the unmatched members would put us over the member limit, abort before creating any members
// new total: # in the system + (# in the file - # in the file that already exist)
if (data.Members.Count - dataFileToMemberMapping.Count + existingMembers.Count() > Limits.MaxMemberCount)
{
result.Success = false;
result.Message = $"Import would exceed the maximum number of members ({Limits.MaxMemberCount}).";
result.AddedNames.Clear();
result.ModifiedNames.Clear();
return(result);
}
// Create all unmapped members in one transaction
// These consist of members from another PluralKit system or another framework (e.g. Tupperbox)
var membersToCreate = new Dictionary <string, string>();
unmappedMembers.ForEach(x => membersToCreate.Add(x.Id, x.Name));
var newMembers = await _members.CreateMultiple(system, membersToCreate);
foreach (var member in newMembers)
{
dataFileToMemberMapping.Add(member.Key, member.Value);
}
// Update members with data file properties
// TODO: parallelize?
foreach (var dataMember in data.Members)
{
dataFileToMemberMapping.TryGetValue(dataMember.Id, out PKMember member);
if (member == null)
{
continue;
}
// Apply member info
member.Name = dataMember.Name;
if (dataMember.DisplayName != null)
{
member.DisplayName = dataMember.DisplayName;
}
if (dataMember.Description != null)
{
member.Description = dataMember.Description;
}
if (dataMember.Color != null)
{
member.Color = dataMember.Color;
}
if (dataMember.AvatarUrl != null)
{
member.AvatarUrl = dataMember.AvatarUrl;
}
if (dataMember.Prefix != null || dataMember.Suffix != null)
{
member.Prefix = dataMember.Prefix;
member.Suffix = dataMember.Suffix;
}
if (dataMember.Birthday != null)
{
var birthdayParse = Formats.DateExportFormat.Parse(dataMember.Birthday);
member.Birthday = birthdayParse.Success ? (LocalDate?)birthdayParse.Value : null;
}
await _members.Save(member);
}
// Re-map the switch members in the likely case IDs have changed
var mappedSwitches = new List <Tuple <Instant, ICollection <PKMember> > >();
foreach (var sw in data.Switches)
{
var timestamp = InstantPattern.ExtendedIso.Parse(sw.Timestamp).Value;
var swMembers = new List <PKMember>();
swMembers.AddRange(sw.Members.Select(x =>
dataFileToMemberMapping.FirstOrDefault(y => y.Key.Equals(x)).Value));
var mapped = new Tuple <Instant, ICollection <PKMember> >(timestamp, swMembers);
mappedSwitches.Add(mapped);
}
// Import switches
if (mappedSwitches.Any())
{
await _switches.BulkImportSwitches(system, mappedSwitches);
}
_logger.Information("Imported system {System}", system.Hid);
return(result);
}