package main

import (
	"fmt"
	"io"
	"os"

	"gogs.inhome.blapointe.com/bel/pttodo/pttodo"
	"gopkg.in/yaml.v2"
)

func dump(config config) error {
	return _dump(os.Stdout, config.Targets(), config.tags, config.search, config.root)
}

func _dump(writer io.Writer, filepaths []string, tags []string, search, rootDisplay string) error {
	root, err := pttodo.NewRootFromFiles(filepaths...)
	if err != nil {
		return err
	}

	var v interface{} = root
	switch rootDisplay {
	case DUMP_ALL:
	case DUMP_TODO:
		v = root.Todo
	case DUMP_SCHEDULED:
		v = root.Scheduled
	case DUMP_DONE:
		v = root.Done
	}
	if todos, ok := v.([]pttodo.Todo); ok {
		todos = pttodo.Todos(todos).LikeTags(tags)
		todos = pttodo.Todos(todos).LikeSearch(search)
		v = todos
	}

	b2, err := yaml.Marshal(v)
	if err != nil {
		return err
	}
	fmt.Fprintf(writer, "%s\n", b2)
	return nil
}