/
session.go
227 lines (200 loc) · 4.83 KB
/
session.go
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package fate
import (
"sync"
"sync/atomic"
"golang.org/x/net/context"
"golang.org/x/sync/errgroup"
"github.com/babyname/fate/cache"
"github.com/babyname/fate/ent"
"github.com/babyname/fate/model"
)
// SessionState ...
// ENUM(waiting,generating,finish,canceled,failed)
type SessionState int32
type Session interface {
Context() context.Context
Start(input *Input, cfg *SessionConfig) error
Stop() error
Err() error
}
type session struct {
ctx context.Context
cancel context.CancelFunc
db *model.Model
group errgroup.Group
state int32
filter Filter
chars map[int][]*ent.Character
name chan FirstName
output *Output
}
func (s *session) State() SessionState {
return SessionState(atomic.LoadInt32(&s.state))
}
func (s *session) SetState(state SessionState) {
atomic.StoreInt32(&s.state, int32(state))
}
func (s *session) Start(input *Input, cfg *SessionConfig) error {
log.Info("start", "input", input)
if s.State() != SessionStateWaiting {
return nil
}
s.ctx, s.cancel = context.WithCancel(context.Background())
s.name = make(chan FirstName, 1024)
var err error
s.output = input.Output()
ln, err := s.db.QueryLastName(s.Context(), input.Last)
if err != nil {
return err
}
s.output.SetLastName(ln)
log.Info("generate", "base", s.output.Basic())
s.SetState(SessionStateGenerating)
s.group.Go(s.generate)
go s.startOutput()
return nil
}
func (s *session) startOutput() {
put := cache.NewPutFilter()
defer s.output.SetCacheFilter(put)
for {
select {
case <-s.Context().Done():
return
case name, ok := <-s.name:
if !ok {
return
}
put.Put(name)
}
}
}
func (s *session) Err() error {
if s.State() == SessionStateFailed {
return s.group.Wait()
}
return nil
}
func (s *session) Stop() error {
s.close()
s.SetState(SessionStateWaiting)
return nil
}
func (s *session) Context() context.Context {
return s.ctx
}
func (s *session) generate() error {
defer close(s.name)
defer s.close()
lucky, err := s.db.GetWuGeLucky(s.Context(), getLastStrokeFromBasic(s.filter, s.output.Basic()))
if err != nil {
log.Error("get wuge lucky", err)
s.SetState(SessionStateFailed)
return err
}
log.Info("wuge lucky list", "size", len(lucky))
wg := sync.WaitGroup{}
var tmp *ent.WuGeLucky
for i := range lucky {
tmp = lucky[i]
if s.filter.CheckSkipStrokeNumberScope(tmp.FirstStroke1, tmp.FirstStroke2) {
log.Info("current lukcy", "lucky", tmp, "blocked", "stroke")
continue
}
if s.filter.CheckSkipSexFilter(tmp) {
log.Info("current lukcy", "lucky", tmp, "blocked", "sex")
continue
}
if s.filter.CheckSkipDaYanFilter(tmp) {
log.Info("current lukcy", "lucky", tmp, "blocked", "dayan")
continue
}
if s.filter.CheckSkipWuXingFilter(tmp.TianGe, tmp.RenGe, tmp.DiGe) {
log.Info("current lukcy", "lucky", tmp, "blocked", "wuxing")
continue
}
log.Info("lucky get chars", "lucky", tmp)
var f1s []*ent.Character
if cs, ok := s.chars[tmp.FirstStroke1]; !ok {
f1s, err = s.db.GetCharacters(s.Context(), s.filter.QueryStrokeFilter(tmp.FirstStroke1), s.filter.QueryRegularFilter)
if err != nil {
log.Error("get first1 name", err)
s.SetState(SessionStateFailed)
return err
}
} else {
f1s = cs
}
var f2s []*ent.Character
if cs, ok := s.chars[tmp.FirstStroke2]; !ok {
f2s, err = s.db.GetCharacters(s.Context(), s.filter.QueryStrokeFilter(tmp.FirstStroke2), s.filter.QueryRegularFilter)
if err != nil {
log.Error("get first2 name", err)
s.SetState(SessionStateFailed)
return err
}
} else {
f2s = cs
}
//make first name
wg.Add(1)
go func(wg *sync.WaitGroup, f1s, f2s []*ent.Character) {
defer wg.Done()
for i1 := range f1s {
for i2 := range f2s {
select {
case <-s.Context().Done():
s.SetState(SessionStateCanceled)
return
default:
s.name <- FirstName{
f1s[i1],
f2s[i2],
}
}
}
}
}(&wg, f1s, f2s)
}
wg.Wait()
s.SetState(SessionStateFinish)
return nil
}
func (s *session) close() {
if s.cancel != nil {
s.cancel()
s.cancel = nil
}
}
func getLastStrokeFromBasic(filter Filter, basic *BasicInfo) [2]int {
var strokes [2]int
sg := strokeGetFromFilterType(filter.FilterType())
strokes[0] = sg(basic.LastName[0])
if basic.LastName[1] != nil {
strokes[1] = sg(basic.LastName[1])
}
return strokes
}
func strokeGetFromFilterType(ct CharacterFilterType) func(c *ent.Character) int {
switch ct {
case CharacterFilterTypeChs:
return func(c *ent.Character) int {
return c.SimpleTotalStroke
}
case CharacterFilterTypeCht:
return func(c *ent.Character) int {
return c.TraditionalTotalStroke
}
case CharacterFilterTypeKangxi:
return func(c *ent.Character) int {
return c.KangXiStroke
}
case CharacterFilterTypeDefault:
fallthrough
default:
return func(c *ent.Character) int {
return c.ScienceStroke
}
}
}
var _ Session = (*session)(nil)