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using System;
using System.Collections.Generic;
using System.Text;
using System.Text.Json;
using System.Net.Http;
using System.Net.Http.Headers;
using System.Net.Mime;
using Microsoft.AspNetCore.Builder;
using Microsoft.AspNetCore.Mvc;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Logging.Console;
using Microsoft.AspNetCore.Http;
using CrupestApi.Config;
public class TodoItem
{
public string Status { get; set; } = default!;
public string Title { get; set; } = default!;
}
internal class Program
{
private static void Main(string[] args)
{
using var httpClient = new HttpClient();
var builder = WebApplication.CreateBuilder(args);
string configFilePath = Environment.GetEnvironmentVariable("CRUPEST_API_CONFIG_FILE") ?? "/config.json";
builder.Configuration.AddJsonFile(configFilePath, optional: false, reloadOnChange: true);
string? logFilePath = Environment.GetEnvironmentVariable("CRUPEST_API_LOG_FILE");
if (logFilePath is not null)
{
// TODO: Log to file.
builder.Logging.AddSimpleConsole(logger =>
{
logger.ColorBehavior = LoggerColorBehavior.Disabled;
});
}
var app = builder.Build();
app.MapGet("/api/todos", async ([FromServices] IConfiguration configuration, [FromServices] ILoggerFactory loggerFactory) =>
{
var logger = loggerFactory.CreateLogger("CrupestApi.Todos");
static string CreateGraphQLQuery(TodoConfiguration todoConfiguration)
{
return $$"""
{
user(login: "{{todoConfiguration.Username}}") {
projectV2(number: {{todoConfiguration.ProjectNumber}}) {
items(last: {{todoConfiguration.Count ?? 20}}) {
nodes {
__typename
content {
__typename
... on Issue {
title
closed
}
... on PullRequest {
title
closed
}
... on DraftIssue {
title
}
}
}
}
}
}
}
""";
}
var todoConfiguration = configuration.GetSection("Todos").Get<TodoConfiguration>();
if (todoConfiguration is null)
{
throw new Exception("Fail to get todos configuration.");
}
using var requestContent = new StringContent(JsonSerializer.Serialize(new
{
query = CreateGraphQLQuery(todoConfiguration)
}));
requestContent.Headers.ContentType = new MediaTypeHeaderValue(MediaTypeNames.Application.Json, Encoding.UTF8.WebName);
using var request = new HttpRequestMessage(HttpMethod.Post, "https://api.github.com/graphql");
request.Content = requestContent;
request.Headers.Authorization = new AuthenticationHeaderValue("Bearer", todoConfiguration.Token);
using var response = await httpClient.SendAsync(request);
var responseBody = await response.Content.ReadAsStringAsync();
logger.LogInformation(response.StatusCode.ToString());
logger.LogInformation(responseBody);
if (response.IsSuccessStatusCode)
{
using var responseJson = JsonSerializer.Deserialize<JsonDocument>(responseBody);
if (responseJson is null)
{
throw new Exception("Fail to deserialize response body.");
}
var nodes = responseJson.RootElement.GetProperty("data").GetProperty("user").GetProperty("projectV2").GetProperty("items").GetProperty("nodes").EnumerateArray();
var result = new List<TodoItem>();
foreach (var node in nodes)
{
var content = node.GetProperty("content");
var title = content.GetProperty("title").GetString();
if (title is null)
{
throw new Exception("Fail to get title.");
}
JsonElement closedElement;
bool closed;
if (content.TryGetProperty("closed", out closedElement))
{
closed = closedElement.GetBoolean();
}
else
{
closed = false;
}
result.Add(new TodoItem
{
Title = title,
Status = closed ? "Done" : "Todo"
});
}
return Results.Json(result, new JsonSerializerOptions
{
PropertyNamingPolicy = JsonNamingPolicy.CamelCase
}, statusCode: 200);
}
else
{
const string message = "Fail to get todos from GitHub.";
logger.LogError(message);
return Results.Json(new
{
message
}, statusCode: StatusCodes.Status503ServiceUnavailable);
}
});
app.Run();
}
}
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