package abac

import (
	"testing"

	_ "github.com/mattn/go-sqlite3"
)

func TestNewSQLiteStore(t *testing.T) {
	dbPath := ":memory:"
	store, err := NewSQLiteStore(dbPath)
	if err != nil {
		t.Errorf("expected no error but got %v", err)
	}
	defer store.Close()

	if store.db == nil {
		t.Errorf("expected db to be not nil")
	}
}

func TestClose(t *testing.T) {
	dbPath := ":memory:"
	store, err := NewSQLiteStore(dbPath)
	if err != nil {
		t.Errorf("expected no error but got %v", err)
	}
	err = store.Close()
	if err != nil {
		t.Errorf("expected no error but got %v", err)
	}
}

func TestGetUserAttributes(t *testing.T) {
    store, err := NewSQLiteStore(":memory:")
	if err != nil {
		t.Errorf("expected no error but got %v", err)
	}
	defer store.Close()

	userID := "user-id"
	attributeKey := "key"
	attributeValue := "value"

	_, err = store.db.Exec(`
    INSERT INTO users (id, username) VALUES (?, ?);
    `, userID, "username")
	if err != nil {
		t.Errorf("expected no error but got %v", err)
	}

    attributeId := newID()
	_, err = store.db.Exec(`
    INSERT INTO attributes (id, key, value) VALUES (?, ?, ?);
    `, attributeId, attributeKey, attributeValue)
	if err != nil {
		t.Errorf("expected no error but got %v", err)
	}

	_, err = store.db.Exec(`
    INSERT INTO user_attributes (user_id, attribute_id) VALUES (?, ?);
    `, userID, attributeId)
	if err != nil {
		t.Errorf("expected no error but got %v", err)
	}

	attributes, err := store.GetUserAttributes(userID)
	if err != nil {
		t.Errorf("expected no error but got %v", err)
	}
    t.Logf("attributes: %v", attributes)
	if len(attributes) == 0 {
		t.Errorf("expected at least one attribute")
	}
	if attributes[0].Key != attributeKey || attributes[0].Value != attributeValue {
		t.Errorf("expected key=%s and value=%s but got key=%s and value=%s",
			attributeKey, attributeValue, attributes[0].Key, attributes[0].Value)
	}
}

func TestGetResourceAttributes(t *testing.T) {
	dbPath := ":memory:"
	store, err := NewSQLiteStore(dbPath)
	if err != nil {
		t.Errorf("expected no error but got %v", err)
	}
	defer store.Close()

	resourceID := "resource-id"
	attributeKey := "key"
	attributeValue := "value"

	_, err = store.db.Exec(`
    INSERT INTO resources (id, name) VALUES (?, ?);
    `, resourceID, "name")
	if err != nil {
		t.Errorf("expected no error but got %v", err)
	}

    attributeId := newID()
	_, err = store.db.Exec(`
    INSERT INTO attributes (id, key, value) VALUES (?, ?, ?);
    `, attributeId, attributeKey, attributeValue)
	if err != nil {
		t.Errorf("expected no error but got %v", err)
	}

	_, err = store.db.Exec(`
    INSERT INTO resource_attributes (resource_id, attribute_id) VALUES (?, ?);
    `, resourceID, attributeId)
	if err != nil {
		t.Errorf("expected no error but got %v", err)
	}

	attributes, err := store.GetResourceAttributes(resourceID)
	if err != nil {
		t.Errorf("expected no error but got %v", err)
	}
	if len(attributes) == 0 {
		t.Errorf("expected at least one attribute")
	}
	if attributes[0].Key != attributeKey || attributes[0].Value != attributeValue {
		t.Errorf("expected key=%s and value=%s but got key=%s and value=%s",
			attributeKey, attributeValue, attributes[0].Key, attributes[0].Value)
	}
}

func TestCreatePolicy(t *testing.T) {
	dbPath := ":memory:"
	store, err := NewSQLiteStore(dbPath)
	if err != nil {
		t.Errorf("expected no error but got %v", err)
	}
	defer store.Close()

	effect := "Allow"
	action := "action"
	conditionAttributeKey := "key"
	conditionAttributeValue := "value"

	err = store.CreatePolicy(effect, action, conditionAttributeKey, conditionAttributeValue)
	if err != nil {
		t.Errorf("expected no error but got %v", err)
	}

	var id string
	err = store.db.QueryRow(`SELECT id FROM policies;`).Scan(&id)
	if err != nil {
		t.Errorf("expected no error but got %v", err)
	}
	if id == "" {
		t.Errorf("expected policy id to be not empty")
	}
}