hancock

			}
			s, err = boltstore.NewBoltStore(db)
			if err != nil {
				return nil, err
			}
		}

		// TODO(dnc): case "http(s)"


	default:
		return nil, fmt.Errorf("unexpected store sheme (%q)", u.Scheme)
	}
	stor[flag] = s
	return s, nil
}

			}
			s, err = boltstore.NewBoltStore(db)
			if err != nil {
				return nil, err
			}
		}

	case "http":
		s = &httpclient{url: *u}

	default:
		return nil, fmt.Errorf("unexpected store sheme (%q)", u.Scheme)
	}
	stor[flag] = s
	return s, nil
}

// Copyright (C) 2020  David N. Cohen

// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.

// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
// GNU Affero General Public License for more details.

// You should have received a copy of the GNU Affero General Public License
// along with this program.  If not, see <https://www.gnu.org/licenses/>.

package main

import (
	"bytes"
	"encoding/json"
	"fmt"
	"io/ioutil"
	"net/http"
	"net/url"
	"path"

	"src.d10.dev/hancock/model"
	"src.d10.dev/hancock/store"
)

// An HTTP client to hancockd server.

type httpclient struct {
	http.Client

	url url.URL
}

func (this *httpclient) Close() error {
	this.CloseIdleConnections()
	return nil
}

func (this *httpclient) PutTestimony(testimony model.Testimony) (*model.TestimonyKey, error) {
	tmp, err := model.Encode(testimony)
	if err != nil {
		return nil, err
	}

	u := this.url // copy
	u.Path = path.Join(u.Path, "testimony")

	// TODO(dnc): content type
	req, err := http.NewRequest(http.MethodPut, u.String(), bytes.NewReader(tmp))
	if err != nil {
		return nil, err
	}

	resp, err := this.Do(req)
	if err != nil {
		return nil, err
	}
	defer resp.Body.Close()

	body, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		return nil, err
	}

	if resp.StatusCode < 200 || resp.StatusCode >= 300 {
		// TODO(dnc): determine underlying cause of error, i.e. display body
		return nil, fmt.Errorf("failed to post testimony: %s", resp.Status)
	}

	key := &model.TestimonyKey{}
	// http API encodes to JSON
	err = json.Unmarshal(body, key)

	return key, err
}

func (this *httpclient) GetTestimony(key model.TestimonyKey) (*model.Testimony, error) {
	u := this.url                           // copy base
	u.Path = path.Join(u.Path, "testimony") // append full path
	for _, segment := range key.Split() {
		u.Path = path.Join(u.Path, url.PathEscape(segment)) // because authority strings may have slashes
	}

	resp, err := http.Get(u.String())
	if err != nil {
		return nil, err
	}

	defer resp.Body.Close()

	if resp.StatusCode == http.StatusNotFound {
		return nil, store.NotFound
	}

	if resp.StatusCode < 200 || resp.StatusCode >= 300 {
		return nil, fmt.Errorf("failed to get testimony: %s", resp.Status)
	}

	body, err := ioutil.ReadAll(resp.Body)
	if err != nil {
		return nil, err
	}

	testimony := &model.Testimony{}
	err = json.Unmarshal(body, testimony)
	return testimony, err
}