chore: init project

2026-06-30 15:53:32 +02:00
commit f43ef5f945
94 changed files with 4405 additions and 0 deletions
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+using InboxIntel.Application.Abstractions;
+using InboxIntel.Domain.Enums;
+using InboxIntel.Infrastructure.Configuration;
+using Microsoft.Extensions.Options;
+using System.Net.Http.Json;
+using System.Text.Json;
+
+namespace InboxIntel.Infrastructure.Ai;
+
+/// <summary>No-op provider used when AI is disabled. Returns empty completions.</summary>
+public class NullAiProvider : IAiProvider
+{
+    public AiProviderMode Mode => AiProviderMode.Disabled;
+    public Task<string> CompleteAsync(string systemPrompt, string userPrompt, CancellationToken ct = default)
+        => Task.FromResult(string.Empty);
+}
+
+/// <summary>Local LLM via Ollama's /api/chat endpoint.</summary>
+public class OllamaProvider : IAiProvider
+{
+    private readonly HttpClient _http;
+    private readonly AiOptions _options;
+
+    public OllamaProvider(IHttpClientFactory factory, IOptions<AiOptions> options)
+    {
+        _options = options.Value;
+        _http = factory.CreateClient("ollama");
+        _http.BaseAddress = new Uri(_options.OllamaBaseUrl);
+    }
+
+    public AiProviderMode Mode => AiProviderMode.LocalOllama;
+
+    public async Task<string> CompleteAsync(string systemPrompt, string userPrompt, CancellationToken ct = default)
+    {
+        var payload = new
+        {
+            model = _options.OllamaModel,
+            stream = false,
+            messages = new[]
+            {
+                new { role = "system", content = systemPrompt },
+                new { role = "user", content = userPrompt }
+            }
+        };
+        var resp = await _http.PostAsJsonAsync("/api/chat", payload, ct);
+        resp.EnsureSuccessStatusCode();
+        using var doc = JsonDocument.Parse(await resp.Content.ReadAsStringAsync(ct));
+        return doc.RootElement.GetProperty("message").GetProperty("content").GetString() ?? string.Empty;
+    }
+}
+
+/// <summary>Cloud LLM via the OpenAI Chat Completions API (optional).</summary>
+public class OpenAiProvider : IAiProvider
+{
+    private readonly HttpClient _http;
+    private readonly AiOptions _options;
+
+    public OpenAiProvider(IHttpClientFactory factory, IOptions<AiOptions> options)
+    {
+        _options = options.Value;
+        _http = factory.CreateClient("openai");
+        _http.BaseAddress = new Uri("https://api.openai.com");
+        _http.DefaultRequestHeaders.Authorization =
+            new System.Net.Http.Headers.AuthenticationHeaderValue("Bearer", _options.OpenAiApiKey);
+    }
+
+    public AiProviderMode Mode => AiProviderMode.CloudOpenAi;
+
+    public async Task<string> CompleteAsync(string systemPrompt, string userPrompt, CancellationToken ct = default)
+    {
+        var payload = new
+        {
+            model = _options.OpenAiModel,
+            messages = new[]
+            {
+                new { role = "system", content = systemPrompt },
+                new { role = "user", content = userPrompt }
+            }
+        };
+        var resp = await _http.PostAsJsonAsync("/v1/chat/completions", payload, ct);
+        resp.EnsureSuccessStatusCode();
+        using var doc = JsonDocument.Parse(await resp.Content.ReadAsStringAsync(ct));
+        return doc.RootElement.GetProperty("choices")[0].GetProperty("message").GetProperty("content").GetString() ?? string.Empty;
+    }
+}