// Copyright © 2022 Roberto Hidalgo <joao@un.rob.mx>
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
package opClient

import (
	"fmt"

	"github.com/1Password/connect-sdk-go/connect"
	op "github.com/1Password/connect-sdk-go/onepassword"
	"github.com/sirupsen/logrus"
)

// UUIDLength defines the required length of UUIDs
const UUIDLength = 26

// IsValidClientUUID returns true if the given client uuid is valid.
func IsValidClientUUID(uuid string) bool {
	if len(uuid) != UUIDLength {
		return false
	}

	for _, c := range uuid {
		valid := (c >= 'a' && c <= 'z') || (c >= '0' && c <= '9')
		if !valid {
			return false
		}
	}

	return true
}

type Connect struct {
	client connect.Client
}

const userAgent = "nidito-joao"

func NewConnect(host, token string) *Connect {
	client := connect.NewClientWithUserAgent(host, token, userAgent)
	return &Connect{client: client}
}

func (b *Connect) getVaultId(vaultIdentifier string) (string, error) {
	if !IsValidClientUUID(vaultIdentifier) {
		vaults, err := b.client.GetVaultsByTitle(vaultIdentifier)
		if err != nil {
			return "", err
		}

		if len(vaults) == 0 {
			return "", fmt.Errorf("No vaults found with identifier %q", vaultIdentifier)
		}

		oldestVault := vaults[0]
		if len(vaults) > 1 {
			for _, returnedVault := range vaults {
				if returnedVault.CreatedAt.Before(oldestVault.CreatedAt) {
					oldestVault = returnedVault
				}
			}
			logrus.Infof("%v 1Password vaults found with the title %q. Will use vault %q as it is the oldest.", len(vaults), vaultIdentifier, oldestVault.ID)
		}
		vaultIdentifier = oldestVault.ID
	}
	return vaultIdentifier, nil
}

func (b *Connect) Get(vault, name string) (*op.Item, error) {
	return b.client.GetItem(name, vault)
}

func (b *Connect) Update(item *op.Item) error {
	_, err := b.client.UpdateItem(item, item.Vault.ID)
	return err
}

func (b *Connect) List(vault, prefix string) ([]string, error) {
	// TODO: get this done
	return nil, nil
}