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

package resource

import (
	_ "fmt"
	"gopkg.in/yaml.v3"
	"io"
	_ "log"
	_ "net/url"
)

type Document struct {
	ResourceDecls []Declaration `yaml:"resources"`
}

func NewDocument() *Document {
	return &Document{}
}

func (d *Document) Load(r io.Reader) error {
	yamlDecoder := yaml.NewDecoder(r)
	yamlDecoder.Decode(d)
	for i := range d.ResourceDecls {
		if _, e := d.ResourceDecls[i].LoadResourceFromYaml(); e != nil {
			return e
		}
	}
	return nil
}

func (d *Document) Resources() []Declaration {
	return d.ResourceDecls
}

func (d *Document) Apply() error {
	for i := range d.ResourceDecls {
		if e := d.ResourceDecls[i].Resource().Apply(); e != nil {
			return e
		}
	}
	return nil
}

func (d *Document) Generate(w io.Writer) error {
	yamlEncoder := yaml.NewEncoder(w)
	yamlEncoder.Encode(d)
	return yamlEncoder.Close()
}

func (d *Document) AddResourceDeclaration(resourceType string, resourceDeclaration Resource) {
	decl := NewDeclaration()
	decl.Type = resourceType
	decl.Implementation = resourceDeclaration
	decl.UpdateYamlFromResource()
	d.ResourceDecls = append(d.ResourceDecls, *decl)
}

func (d *Document) AddResource(uri string) error {
	//parsedResourceURI, e := url.Parse(uri)
	//if e == nil {
	decl := NewDeclaration()
	decl.SetURI(uri)
	decl.UpdateYamlFromResource()
	d.ResourceDecls = append(d.ResourceDecls, *decl)
	//}
	return nil
}