package config

import "testing"

func validConfig() Config {
	return Config{
		Server: ServerConfig{Port: 8080},
		MCP:    MCPConfig{Path: "/mcp"},
		Auth: AuthConfig{
			Keys: []APIKey{{ID: "test", Value: "secret"}},
		},
		Database: DatabaseConfig{URL: "postgres://example"},
		AI: AIConfig{
			Provider: "litellm",
			Embeddings: AIEmbeddingConfig{
				Dimensions: 1536,
			},
			LiteLLM: LiteLLMConfig{
				BaseURL: "http://localhost:4000/v1",
				APIKey:  "key",
			},
			OpenRouter: OpenRouterAIConfig{
				BaseURL: "https://openrouter.ai/api/v1",
				APIKey:  "key",
			},
		},
		Search:  SearchConfig{DefaultLimit: 10, MaxLimit: 50},
		Logging: LoggingConfig{Level: "info"},
	}
}

func TestValidateAcceptsLiteLLMAndOpenRouter(t *testing.T) {
	cfg := validConfig()
	if err := cfg.Validate(); err != nil {
		t.Fatalf("Validate litellm error = %v", err)
	}

	cfg.AI.Provider = "openrouter"
	if err := cfg.Validate(); err != nil {
		t.Fatalf("Validate openrouter error = %v", err)
	}
}

func TestValidateRejectsInvalidProvider(t *testing.T) {
	cfg := validConfig()
	cfg.AI.Provider = "unknown"

	if err := cfg.Validate(); err == nil {
		t.Fatal("Validate() error = nil, want error for unsupported provider")
	}
}

func TestValidateRejectsEmptyAuthKeyValue(t *testing.T) {
	cfg := validConfig()
	cfg.Auth.Keys[0].Value = ""

	if err := cfg.Validate(); err == nil {
		t.Fatal("Validate() error = nil, want error for empty auth key value")
	}
}