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@@ -22,6 +22,7 @@
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#include <sys/stat.h>
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#include <functional>
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#include <optional>
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#include <charconv>
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#ifndef _WIN32
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# include <unistd.h>
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@@ -745,3 +746,59 @@ void ScanScenarios()
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{
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_scanner.Scan(true);
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}
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/**
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* Constructs FiosNumberedSaveName. Initial number is the most recent save, or -1 if not found.
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* @param prefix The prefix to use to generate a filename.
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*/
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FiosNumberedSaveName::FiosNumberedSaveName(const std::string &prefix) : prefix(prefix), number(-1)
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{
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static std::optional<std::string> _autosave_path;
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if (!_autosave_path) _autosave_path = FioFindDirectory(AUTOSAVE_DIR);
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static std::string _prefix; ///< Static as the lambda needs access to it.
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/* Callback for FiosFileScanner. */
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static fios_getlist_callback_proc *proc = [](SaveLoadOperation fop, const std::string &file, const char *ext, char *title, const char *last) {
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if (strcasecmp(ext, ".sav") == 0 && StrStartsWith(file, _prefix)) return FIOS_TYPE_FILE;
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return FIOS_TYPE_INVALID;
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};
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/* Prefix to check in the callback. */
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_prefix = *_autosave_path + this->prefix;
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/* Get the save list. */
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FileList list;
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FiosFileScanner scanner(SLO_SAVE, proc, list);
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scanner.Scan(".sav", _autosave_path->c_str(), false);
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/* Find the number for the most recent save, if any. */
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if (list.begin() != list.end()) {
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SortingBits order = _savegame_sort_order;
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_savegame_sort_order = SORT_BY_DATE | SORT_DESCENDING;
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std::sort(list.begin(), list.end());
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_savegame_sort_order = order;
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std::string_view name = list.begin()->title;
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std::from_chars(name.data() + this->prefix.size(), name.data() + name.size(), this->number);
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}
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}
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/**
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* Generate a savegame name and number according to _settings_client.gui.max_num_autosaves.
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* @return A filename in format "<prefix><number>.sav".
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*/
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std::string FiosNumberedSaveName::Filename()
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{
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if (++this->number >= _settings_client.gui.max_num_autosaves) this->number = 0;
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return fmt::format("{}{}.sav", this->prefix, this->number);
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}
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/**
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* Generate an extension for a savegame name.
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* @return An extension in format "-<prefix>.sav".
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*/
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std::string FiosNumberedSaveName::Extension()
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{
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return fmt::format("-{}.sav", this->prefix);
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}
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