public static async IAsyncEnumerable <(string repo, string label, string original)> MatchNodes(this HttpClient github, LabelEditedPayload payload)
{
var count = 0;
var id = payload.RepositoryId;
var limit = payload.Limit;
var oldName = payload.ChangedNameFrom;
var newName = payload.LabelName;
var search = $"{newName} {oldName}";
var privacy = payload.IgnorePrivate ? ", privacy: PUBLIC" : string.Empty;
var suffix = $", ownerAffiliations: OWNER{privacy}) {{ pageInfo {{ endCursor hasNextPage }} nodes {{ databaseId name labels(first: 10, query: \\\"{search}\\\") {{ nodes {{ name color description }} }} }} }} }} }}\"}}";
var query = $"{{\"query\":\"{{ viewer {{ repositories(first: {Math.Min(GitHubApi.MAX_ITEMS_PER_TRANSACTION, limit)}" + suffix;
bool hasNextPage;
var promise = github.GraphQL(query);
do
{
// Wait for results
JObject data = await promise;
var repos = data[DATA][VIEWER][REPOSITORIES];
var page = repos[PAGEINFO];
hasNextPage = page[HASNEXTPAGE].Value <bool>();
// If more data is available request it now
if (hasNextPage)
{
query = $"{{\"query\":\"{{ viewer {{ repositories(first: {GitHubApi.MAX_ITEMS_PER_TRANSACTION}, after: \\\"{page["endCursor"].Value<string>()}\\\"" + suffix;
promise = github.GraphQL(query);
}
// Yield label info for each matching repository
foreach (var node in repos[NODES])
{
// Skip source repository
if (node[DATABASEID].Value <long>() == id)
{
continue;
}
// Scan and initialize found labels
JToken source = null;
JToken target = null;
foreach (var label in node[LABELS][NODES])
{
var name = label[NAME].Value <string>();
if (name == newName)
{
target = label;
}
if (name == oldName)
{
source = label;
}
}
var tuple =
(
repo : node[NAME].Value <string>(),
label : null as string,
original : null as string
);
// Assign found labels
if (null != source && null != target)
{
tuple.label = target.Value <string>();
tuple.original = source[NAME].Value <string>();
}
else if (null != source)
{
tuple.label = source[NAME].Value <string>();
}
else if (null != target)
{
tuple.label = target[NAME].Value <string>();
}
yield return(tuple);
if (limit < ++count)
{
yield break;
}
}
}while (hasNextPage);
}
static async Task HandleLabelEditedEvent(this HttpClient github, LabelEditedPayload payload, ILogger log)
{
var count = 0;
var owner = payload.OwnerLogin;
var name = payload.LabelName;
var color = payload.LabelColor;
var changedName = payload.ChangedName;
var description = payload.LabelDescription;
log.LogInformation($"Updating label '{name}' in '{owner}' initiated by '{payload.SenderLogin}'");
// When label is renamed, it requires checks for new and old
// name so it is split in two possible cases here
if (null != changedName && changedName.HasValues)
{
// Process changes in the name
await foreach (var node in github.MatchNodes(payload))
{
if (null != node.original)
{
// This is the case where both, the new label, and the old are present
// We need to delete one modify the other
var method = $"/repos/{owner}/{node.repo}/labels/{node.original}";
(await github.DeleteAsync(method)).EnsureSuccessStatusCode();
}
if (null != node.label)
{
// Update existing label
var content = new StringContent($"{{ \"new_name\": \"{name}\", \"description\": \"{description}\", \"color\": \"{color}\" }} ");
(await github.PatchAsync($"/repos/{owner}/{node.repo}/labels/{node.label}", content))
.EnsureSuccessStatusCode();
count += 1;
}
else
{
// Create label
var content = new StringContent($"{{ \"name\": \"{node.label}\", \"description\": \"{description}\", \"color\": \"{color}\" }} ");
(await github.PostAsync($"/repos/{owner}/{node.repo}/labels", content))
.EnsureSuccessStatusCode();
count += 1;
}
}
}
else
{
// Process changes in color or description
await foreach (var node in github.GetNodes(payload))
{
var repo = node[GitHubApi.NAME].Value <string>();
var content = new StringContent($"{{ \"name\": \"{name}\", \"description\": \"{description}\", \"color\": \"{color}\" }} ");
var label = node[GitHubApi.LABEL];
if (null != label && label.HasValues)
{
// Update existing label
(await github.PatchAsync($"/repos/{owner}/{repo}/labels/{name}", content))
.EnsureSuccessStatusCode();
count += 1;
}
else
{
// Create label
(await github.PostAsync($"/repos/{owner}/{repo}/labels", content))
.EnsureSuccessStatusCode();
count += 1;
}
}
}
var message = $"Successfully updated in {count} repositories";
log.LogInformation(message);
}