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/*
Copyright © 2025 NAME HERE <EMAIL ADDRESS>
*/
package cmd
import (
"encoding/json"
"fmt"
"io"
"os"
"sync"
"github.com/scrotadamus/ghligh/document"
"github.com/spf13/cobra"
"crypto/sha256"
)
var inputFiles []string
type importedAnnots struct {
// FIXME just internatl map[string]struct where
// struct contains map[string]bool and document.AnnotsMap
internal map[string]document.AnnotsMap
annotsHashes map[string]map[string]bool
mutex sync.Mutex
}
func (ia *importedAnnots) get(hash string) document.AnnotsMap {
return ia.internal[hash]
}
func (ia *importedAnnots) init(hash string) {
ia.mutex.Lock()
defer ia.mutex.Unlock()
if ia.internal[hash] == nil {
ia.internal[hash] = make(document.AnnotsMap)
}
if ia.annotsHashes[hash] == nil {
ia.annotsHashes[hash] = make(map[string]bool)
}
}
func (ia *importedAnnots) check(docHash string, annotsHash string) bool {
ia.mutex.Lock()
defer ia.mutex.Unlock()
ok := ia.annotsHashes[docHash][annotsHash]
return ok
}
func (ia *importedAnnots) insert(hash string, am document.AnnotsMap) error {
amHash, err := hashAnnotsMap(am)
if err != nil {
return err
}
present := ia.check(hash, amHash)
if !present {
ia.mutex.Lock()
for key, value := range am {
ia.internal[hash][key] = append(ia.internal[hash][key], value...)
ia.annotsHashes[hash][amHash] = true
}
ia.mutex.Unlock()
}
return nil
}
func hashAnnotsMap(am document.AnnotsMap) (string, error) {
jsonBytes, err := json.Marshal(am)
if err != nil {
return "", err
}
h := sha256.Sum256(jsonBytes)
return fmt.Sprintf("%x", h), nil
}
func loadImportedAnnots(ia *importedAnnots, reader io.Reader) {
data, err := io.ReadAll(reader)
if err != nil {
fmt.Fprintf(os.Stderr, "could not read data: %v\n", err)
return
}
var importedDocs []document.GhlighDoc
err = json.Unmarshal(data, &importedDocs)
if err != nil {
fmt.Fprintf(os.Stderr, "%v\n", err)
return
}
for _, importedDoc := range importedDocs {
hash := importedDoc.HashBuffer
ia.init(hash)
ia.insert(hash, importedDoc.AnnotsBuffer)
}
}
// importCmd represents the import command
var importCmd = &cobra.Command{
Use: "import",
Short: "import highlights from json file",
Long: `
ghligh import foo.pdf bar.pdf ... [--from fnord.json] [--from kadio.json] [-0] [--save=false]
will import into foo.pdf bar.pdf etc... the highlights from file specified
with the --from flag
if -0 is set ghligh will read json from stdin
--save=false will run without saving documents, it will just tells you how
many annotations from the json files specified will be imported
`,
Run: func(cmd *cobra.Command, args []string) {
if len(args) == 0 {
cmd.Help()
return
}
stdin, err := cmd.Flags().GetBool("stdin")
if err != nil {
cmd.Help()
return
}
save, err := cmd.Flags().GetBool("save")
if err != nil {
cmd.Help()
return
}
if stdin == false && len(inputFiles) == 0 {
fmt.Fprintf(os.Stderr, "nowhere to put output I am not doing anything\n")
return
}
// Load Annot Maps
ia := importedAnnots{
internal: make(map[string]document.AnnotsMap),
annotsHashes: make(map[string]map[string]bool),
}
var wg sync.WaitGroup
wg.Add(len(inputFiles))
for _, file := range inputFiles {
//wg.Add(1)
go func(path string) {
defer wg.Done()
f, err := os.Open(path)
if err != nil {
fmt.Fprintf(os.Stderr, "could not open file %s: %v\n", path, err)
return
}
defer f.Close()
loadImportedAnnots(&ia, f)
}(file)
}
wg.Wait()
if stdin {
loadImportedAnnots(&ia, os.Stdin)
}
// load from inputFiles
for _, file := range args {
doc, err := document.Open(file)
if err != nil {
fmt.Fprintf(os.Stderr, "error loading %s: %v", file, err)
continue
}
hash := doc.HashDoc()
num, err := doc.Import(ia.get(hash))
if err != nil {
fmt.Fprintf(os.Stderr, "could not import highlights into %s: %v\n", file, err)
} else {
fmt.Fprintf(os.Stderr, "imported %d annots into %s\n", num, file)
if save {
doc.Save()
}
}
doc.Close()
}
},
}
func init() {
rootCmd.AddCommand(importCmd)
importCmd.Flags().BoolP("stdin", "0", false, "read json from stdin")
importCmd.Flags().BoolP("save", "", true, "save the file with new annotation importer")
importCmd.Flags().StringArrayVarP(&inputFiles, "from", "f", []string{}, "files to import annots from")
}
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