96 lines
2.4 KiB
Go
96 lines
2.4 KiB
Go
package d2asset
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import (
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"strings"
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"github.com/OpenDiablo2/OpenDiablo2/d2common/d2interface"
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"github.com/OpenDiablo2/OpenDiablo2/d2common/d2resource"
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"github.com/OpenDiablo2/OpenDiablo2/d2core/d2config"
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)
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const (
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fileBudget = 1024 * 1024 * 32
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)
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// Static checks to confirm struct conforms to interface
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var _ d2interface.FileManager = &fileManager{}
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var _ d2interface.Cacher = &fileManager{}
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type fileManager struct {
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*AssetManager
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cache d2interface.Cache
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archiveManager d2interface.ArchiveManager
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config *d2config.Configuration
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}
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// LoadFileStream loads a file as a stream automatically from an archive
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func (fm *fileManager) LoadFileStream(filePath string) (d2interface.ArchiveDataStream, error) {
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filePath = fm.fixupFilePath(filePath)
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archive, err := fm.archiveManager.LoadArchiveForFile(filePath)
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if err != nil {
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return nil, err
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}
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return archive.ReadFileStream(filePath)
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}
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// LoadFile loads a file automatically from a managed archive
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func (fm *fileManager) LoadFile(filePath string) ([]byte, error) {
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filePath = fm.fixupFilePath(filePath)
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if value, found := fm.cache.Retrieve(filePath); found {
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return value.([]byte), nil
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}
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archive, err := fm.archiveManager.LoadArchiveForFile(filePath)
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if err != nil {
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return nil, err
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}
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data, err := archive.ReadFile(filePath)
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if err != nil {
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return nil, err
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}
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if err := fm.cache.Insert(filePath, data, len(data)); err != nil {
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return nil, err
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}
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return data, nil
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}
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// FileExists checks if a file exists in an archive
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func (fm *fileManager) FileExists(filePath string) (bool, error) {
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filePath = fm.fixupFilePath(filePath)
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return fm.archiveManager.FileExistsInArchive(filePath)
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}
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func (fm *fileManager) ClearCache() {
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fm.cache.Clear()
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}
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func (fm *fileManager) GetCache() d2interface.Cache {
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return fm.cache
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}
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func (fm *fileManager) fixupFilePath(filePath string) string {
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filePath = fm.removeLocaleTokens(filePath)
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filePath = strings.ToLower(filePath)
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filePath = strings.ReplaceAll(filePath, `/`, "\\")
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filePath = strings.TrimPrefix(filePath, "\\")
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return filePath
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}
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func (fm *fileManager) removeLocaleTokens(filePath string) string {
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tableToken := d2resource.LanguageTableToken
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fontToken := d2resource.LanguageFontToken
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filePath = strings.ReplaceAll(filePath, tableToken, fm.config.Language)
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// fixme: not all languages==latin
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filePath = strings.ReplaceAll(filePath, fontToken, "latin")
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return filePath
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}
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