// Copyright 2024 Matthew Rich <matthewrich.conf@gmail.com>. All rights reserved.

package resource

import (
	"context"
_	"errors"
	"fmt"
	"gopkg.in/yaml.v3"
	"io"
	"net/url"
	"net/http"
_	"os"
)

func init() {
	ResourceTypes.Register("http", HTTPFactory)
	ResourceTypes.Register("https", HTTPFactory)
}

func HTTPFactory(u *url.URL) Resource {
	h := NewHTTP()
	return h
}

// Manage the state of an HTTP endpoint
type HTTP struct {
	Endpoint string `yaml:"endpoint" json:"endpoint"`

	Body  string `yaml:"body,omitempty" json:"body,omitempty"`
	State string `yaml:"state" json:"state"`
}

func NewHTTP() *HTTP {
	return &HTTP{}
}

func (h *HTTP) URI() string {
	return h.Endpoint
}

func (h *HTTP) SetURI(uri string) error {
	if _, e := url.Parse(uri); e != nil {
		return fmt.Errorf("%w: %s is not a file", ErrInvalidResourceURI, uri)
	}
	h.Endpoint = uri
	return nil
}

func (h *HTTP) Validate() error {
	return fmt.Errorf("failed")
}

func (h *HTTP) Apply() error {

	switch h.State {
	case "absent":
	case "present":
	}

	return nil
}

func (h *HTTP) Load(r io.Reader) error {
        c := NewYAMLDecoder(r)
        return c.Decode(h)
}

func (h *HTTP) LoadDecl(yamlResourceDeclaration string) error {
        c := NewYAMLStringDecoder(yamlResourceDeclaration)
        return c.Decode(h)
}

func (h *HTTP) ResolveId(ctx context.Context) string {
	return h.Endpoint
}

func (h *HTTP) Read(ctx context.Context) ([]byte, error) {
	resp, err := http.Get(h.Endpoint)
	if err != nil {
		return nil, err
	}
	defer resp.Body.Close()
	body, errReadBody := io.ReadAll(resp.Body)
	if errReadBody != nil {
		return nil, errReadBody
	}
	h.Body = string(body)
	return yaml.Marshal(h)
}

func (h *HTTP) Type() string {
	u, _ := url.Parse(h.Endpoint)
	return u.Scheme
}