refactor(#8): update LoadMMKVOrDefault function to use MMKVLoaderOptions and implement platform-specific loading for Windows

algo/qmc/key_mmkv_loader.go

@@ -0,0 +1,64 @@
+package qmc
+
+import (
+	"bufio"
+	"io"
+	"strings"
+
+	"git.um-react.app/um/cli/algo/common"
+	"git.um-react.app/um/cli/internal/mmkv"
+	"git.um-react.app/um/cli/internal/utils"
+	"go.uber.org/zap"
+)
+
+// MMKVLoaderOptions holds platform-specific inputs for LoadMMKVOrDefault.
+type MMKVLoaderOptions struct {
+	CliExe string // qmpc-mmkv-cli path (--qmpc-mmkv-cli-exe); Windows only
+}
+
+// LoadUserMMKV loads keys from a user-specified mmkv path. Soft-fails with a warning.
+func LoadUserMMKV(path string, key string, logger *zap.Logger) common.QMCKeys {
+	if path == "" {
+		return nil
+	}
+	logger.Debug("LoadUserMMKV: Loading user mmkv", zap.String("path", path), zap.String("key", key))
+	userKeys, err := mmkv.LoadFromPath(path, key, logger)
+	if err != nil {
+		logger.Warn("LoadUserMMKV: could not read user keys", zap.Error(err))
+		return nil
+	}
+	logger.Info("Using user mmkv", zap.String("path", path), zap.Int("count", len(userKeys)))
+	return userKeys
+}
+
+// parseQmpcMMKVCliOutput reads qmpc-mmkv-cli plaintext output as alternating
+// filename / ekey lines and builds a QMCKeys map.
+func parseQmpcMMKVCliOutput(r io.Reader, logger *zap.Logger) common.QMCKeys {
+	sc := bufio.NewScanner(r)
+	result := make(common.QMCKeys)
+
+	var name string
+	nameRead := false
+	for sc.Scan() {
+		line := utils.NormalizeUnicode(strings.TrimSpace(sc.Text()))
+		if !nameRead {
+			name = line
+		} else {
+			if name != "" && line != "" {
+				result[name] = line
+			}
+		}
+		nameRead = !nameRead
+	}
+
+	if err := sc.Err(); err != nil {
+		logger.Warn("LoadMMKVOrDefault: error reading qmpc-mmkv-cli output", zap.Error(err))
+	}
+	if nameRead {
+		logger.Warn("LoadMMKVOrDefault: qmpc-mmkv-cli output has odd number of lines, ignoring last line",
+			zap.String("line", name),
+		)
+	}
+
+	return result
+}