package cgf

import (
	"encoding/json"
	"fmt"
	"io"
	"os"

	"git.wecise.com/wecise/cgimport/cgf/reader"
)

func Import(filepath string) (blockcount int, err error) {
	f, e := os.Open(filepath)
	if e != nil {
		return blockcount, e
	}
	defer f.Close()
	return importReader(f)
}

func importReader(buf io.Reader) (blockcount int, err error) {
	br := reader.NewBlockReader(buf)
	for {
		block, e := br.ReadBlock()
		if e != nil {
			return blockcount, e
		}
		if block == nil {
			return
		}
		e = importBlock(block)
		if e != nil {
			return blockcount, e
		}
		blockcount++
	}
}

func importBlock(block map[string]any) (err error) {
	bs, e := json.MarshalIndent(block, "", "  ")
	if e != nil {
		return e
	}
	fmt.Println("import:", string(bs))
	return
}