100 lines
1.9 KiB
Go
100 lines
1.9 KiB
Go
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package models
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import (
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"bytes"
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"io/ioutil"
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"strconv"
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"strings"
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"github.com/spf13/viper"
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)
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type EntryFrequency struct {
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Times int
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Entry string
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}
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func (ef *EntryFrequency) ToBytes() []byte {
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var ret []byte
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ret = append(ret, []byte(strconv.Itoa(ef.Times))...)
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ret = append(ret, byte('\t'))
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ret = append(ret, []byte(ef.Entry)...)
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return ret
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}
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func FromBytes(bts []byte) (*EntryFrequency, error) {
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fields := bytes.Split(bts, []byte{'\t'})
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times, err := strconv.Atoi(string(fields[0]))
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if err != nil {
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return nil, err
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}
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return &EntryFrequency{
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Times: times,
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Entry: string(fields[1]),
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}, nil
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}
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type Frequencies struct {
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Entries []*EntryFrequency
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}
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func LoadFrequencies() (*Frequencies, error) {
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fl := viper.ConfigFileUsed()
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fl = fl[:strings.LastIndex(fl, "/")+1] + "freq"
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req := &Frequencies{}
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b, err := ioutil.ReadFile(fl)
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if err != nil {
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err = req.Save()
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if err != nil {
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return nil, err
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}
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return req, nil
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}
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lines := bytes.Split(b, []byte{'\n'})
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for i := range lines {
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var ef *EntryFrequency
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ef, err = FromBytes(lines[i])
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if err == nil {
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req.AddEntry(ef)
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}
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}
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return req, nil
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}
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func (f *Frequencies) AddEntry(ef *EntryFrequency) {
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f.Entries = append(f.Entries, ef)
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}
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func (f *Frequencies) GetTimes(entry string) int {
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for i := range f.Entries {
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if f.Entries[i].Entry == entry {
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return f.Entries[i].Times
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}
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}
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return 0
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}
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func (f *Frequencies) IncrementEntry(entry string) {
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for i := range f.Entries {
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if f.Entries[i].Entry == entry {
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f.Entries[i].Times++
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return
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}
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}
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f.Entries = append(f.Entries, &EntryFrequency{
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Times: 1,
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Entry: entry,
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})
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}
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func (f *Frequencies) Save() error {
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fl := viper.ConfigFileUsed()
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fl = fl[:strings.LastIndex(fl, "/")+1] + "freq"
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var b []byte
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for _, e := range f.Entries {
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b = append(b, e.ToBytes()...)
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b = append(b, byte('\n'))
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}
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return ioutil.WriteFile(fl, b, 0600)
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}
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