// Copyright 2026 Woodpecker Authors
//
// 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 secret

import (
	"context"
	"fmt"
	"net/http"

	"go.woodpecker-ci.org/woodpecker/v3/server/model"
	"go.woodpecker-ci.org/woodpecker/v3/server/services/utils"
)

type httpExtension struct {
	endpoint     string
	client       *utils.Client
	includeNetrc bool
}

type secretRequestStructure struct {
	Repo     *model.Repo     `json:"repo"`
	Pipeline *model.Pipeline `json:"pipeline"`
	Netrc    *model.Netrc    `json:"netrc,omitempty"`
}

type secretResponseStructure struct {
	Secrets []*model.Secret `json:"secrets"`
}

// NewHTTP returns a new HTTP secret extension client.
func NewHTTP(endpoint string, client *utils.Client, includeNetrc bool) *httpExtension {
	return &httpExtension{endpoint: endpoint, client: client, includeNetrc: includeNetrc}
}

// SecretListPipeline fetches secrets from an external HTTP extension.
func (h *httpExtension) SecretListPipeline(ctx context.Context, repo *model.Repo, pipeline *model.Pipeline, netrc *model.Netrc) ([]*model.Secret, error) {
	body := secretRequestStructure{
		Repo:     repo,
		Pipeline: pipeline,
	}
	if h.includeNetrc {
		body.Netrc = netrc
	}

	response := new(secretResponseStructure)
	status, err := h.client.Send(ctx, http.MethodPost, h.endpoint, body, response)
	if err != nil && status != http.StatusNoContent {
		return nil, fmt.Errorf("failed to fetch secrets via http (%d) %w", status, err)
	}

	if status != http.StatusOK {
		// 204 No Content means no additional secrets
		return nil, nil
	}

	return response.Secrets, nil
}