refactor: update import paths to use internal package

internal/cbz/cbz_loader.go

@@ -0,0 +1,104 @@
+package cbz
+
+import (
+	"archive/zip"
+	"bufio"
+	"bytes"
+	"fmt"
+	"github.com/araddon/dateparse"
+	"github.com/belphemur/CBZOptimizer/v2/internal/manga"
+	"github.com/belphemur/CBZOptimizer/v2/internal/utils/errs"
+	"io"
+	"path/filepath"
+	"strings"
+)
+
+func LoadChapter(filePath string) (*manga.Chapter, error) {
+	// Open the .cbz file
+	r, err := zip.OpenReader(filePath)
+	if err != nil {
+		return nil, fmt.Errorf("failed to open .cbz file: %w", err)
+	}
+	defer errs.Capture(&err, r.Close, "failed to close opened .cbz file")
+
+	chapter := &manga.Chapter{
+		FilePath: filePath,
+	}
+	// Check for comment
+	if r.Comment != "" {
+		scanner := bufio.NewScanner(strings.NewReader(r.Comment))
+		if scanner.Scan() {
+			convertedTime := scanner.Text()
+			chapter.ConvertedTime, err = dateparse.ParseAny(convertedTime)
+			if err == nil {
+				chapter.IsConverted = true
+			}
+		}
+	}
+
+	for _, f := range r.File {
+		if f.FileInfo().IsDir() {
+			continue
+		}
+		err := func() error {
+			// Open the file inside the zip
+			rc, err := f.Open()
+			if err != nil {
+				return fmt.Errorf("failed to open file inside .cbz: %w", err)
+			}
+
+			defer errs.Capture(&err, rc.Close, "failed to close file inside .cbz")
+
+			// Determine the file extension
+			ext := strings.ToLower(filepath.Ext(f.Name))
+
+			if ext == ".xml" && strings.ToLower(filepath.Base(f.Name)) == "comicinfo.xml" {
+				// Read the ComicInfo.xml file content
+				xmlContent, err := io.ReadAll(rc)
+				if err != nil {
+					return fmt.Errorf("failed to read ComicInfo.xml content: %w", err)
+				}
+				chapter.ComicInfoXml = string(xmlContent)
+			} else if !chapter.IsConverted && ext == ".txt" && strings.ToLower(filepath.Base(f.Name)) == "converted.txt" {
+				textContent, err := io.ReadAll(rc)
+				if err != nil {
+					return fmt.Errorf("failed to read Converted.xml content: %w", err)
+				}
+				scanner := bufio.NewScanner(bytes.NewReader(textContent))
+				if scanner.Scan() {
+					convertedTime := scanner.Text()
+					chapter.ConvertedTime, err = dateparse.ParseAny(convertedTime)
+					if err != nil {
+						return fmt.Errorf("failed to parse converted time: %w", err)
+					}
+					chapter.IsConverted = true
+				}
+			} else {
+				// Read the file contents for page
+				buf := new(bytes.Buffer)
+				_, err = io.Copy(buf, rc)
+				if err != nil {
+					return fmt.Errorf("failed to read file contents: %w", err)
+				}
+
+				// Create a new Page object
+				page := &manga.Page{
+					Index:      uint16(len(chapter.Pages)), // Simple index based on order
+					Extension:  ext,
+					Size:       uint64(buf.Len()),
+					Contents:   buf,
+					IsSplitted: false,
+				}
+
+				// Add the page to the chapter
+				chapter.Pages = append(chapter.Pages, page)
+			}
+			return nil
+		}()
+		if err != nil {
+			return nil, err
+		}
+	}
+
+	return chapter, nil
+}