package management

import (
	"context"
	"encoding/json"
	"net/http"
	"net/http/httptest"
	"testing"

	"github.com/gin-gonic/gin"
	"github.com/router-for-me/CLIProxyAPI/v6/internal/config"
	coreauth "github.com/router-for-me/CLIProxyAPI/v6/sdk/cliproxy/auth"
)

func sumRecentRequestBuckets(buckets []coreauth.RecentRequestBucket) (int64, int64) {
	var success int64
	var failed int64
	for _, bucket := range buckets {
		success += bucket.Success
		failed += bucket.Failed
	}
	return success, failed
}

func TestGetAPIKeyUsage_GroupsByProviderAndAPIKey(t *testing.T) {
	t.Setenv("MANAGEMENT_PASSWORD", "")
	gin.SetMode(gin.TestMode)

	manager := coreauth.NewManager(nil, nil, nil)
	if _, err := manager.Register(context.Background(), &coreauth.Auth{
		ID:       "codex-auth",
		Provider: "codex",
		Attributes: map[string]string{
			"api_key":  "codex-key",
			"base_url": "https://codex.example.com",
		},
	}); err != nil {
		t.Fatalf("register codex auth: %v", err)
	}
	if _, err := manager.Register(context.Background(), &coreauth.Auth{
		ID:       "claude-auth",
		Provider: "claude",
		Attributes: map[string]string{
			"api_key":  "claude-key",
			"base_url": "https://claude.example.com",
		},
	}); err != nil {
		t.Fatalf("register claude auth: %v", err)
	}

	manager.MarkResult(context.Background(), coreauth.Result{AuthID: "codex-auth", Provider: "codex", Model: "gpt-5", Success: true})
	manager.MarkResult(context.Background(), coreauth.Result{AuthID: "codex-auth", Provider: "codex", Model: "gpt-5", Success: false})
	manager.MarkResult(context.Background(), coreauth.Result{AuthID: "claude-auth", Provider: "claude", Model: "claude-4", Success: true})

	h := NewHandlerWithoutConfigFilePath(&config.Config{AuthDir: t.TempDir()}, manager)

	rec := httptest.NewRecorder()
	ginCtx, _ := gin.CreateTestContext(rec)
	req := httptest.NewRequest(http.MethodGet, "/v0/management/api-key-usage", nil)
	ginCtx.Request = req
	h.GetAPIKeyUsage(ginCtx)

	if rec.Code != http.StatusOK {
		t.Fatalf("status = %d, want %d body=%s", rec.Code, http.StatusOK, rec.Body.String())
	}

	var payload map[string]map[string]apiKeyUsageEntry
	if err := json.Unmarshal(rec.Body.Bytes(), &payload); err != nil {
		t.Fatalf("decode payload: %v", err)
	}

	codexEntry := payload["codex"]["https://codex.example.com|codex-key"]
	if codexEntry.Success != 1 || codexEntry.Failed != 1 {
		t.Fatalf("codex totals = %d/%d, want 1/1", codexEntry.Success, codexEntry.Failed)
	}
	if len(codexEntry.RecentRequests) != 20 {
		t.Fatalf("codex buckets len = %d, want 20", len(codexEntry.RecentRequests))
	}
	codexSuccess, codexFailed := sumRecentRequestBuckets(codexEntry.RecentRequests)
	if codexSuccess != 1 || codexFailed != 1 {
		t.Fatalf("codex totals = %d/%d, want 1/1", codexSuccess, codexFailed)
	}

	claudeEntry := payload["claude"]["https://claude.example.com|claude-key"]
	if claudeEntry.Success != 1 || claudeEntry.Failed != 0 {
		t.Fatalf("claude totals = %d/%d, want 1/0", claudeEntry.Success, claudeEntry.Failed)
	}
	if len(claudeEntry.RecentRequests) != 20 {
		t.Fatalf("claude buckets len = %d, want 20", len(claudeEntry.RecentRequests))
	}
	claudeSuccess, claudeFailed := sumRecentRequestBuckets(claudeEntry.RecentRequests)
	if claudeSuccess != 1 || claudeFailed != 0 {
		t.Fatalf("claude totals = %d/%d, want 1/0", claudeSuccess, claudeFailed)
	}
}