105 lines
2.9 KiB
Go
105 lines
2.9 KiB
Go
package domain
|
||
|
||
import "strings"
|
||
|
||
const (
|
||
SuggestUsageInclude = "include"
|
||
SuggestUsageExclude = "exclude"
|
||
|
||
SuggestBasisAudience = "audience"
|
||
SuggestBasisPain = "pain"
|
||
SuggestBasisContext = "context"
|
||
SuggestBasisTag = "tag"
|
||
SuggestBasisCapability = "capability"
|
||
SuggestBasisExclude = "exclude"
|
||
|
||
// 建議數量上限：清單要能一眼看完並逐條決定，不是丟一大串讓人放棄。
|
||
MaxSuggestions = 20
|
||
DefaultSuggestions = 8
|
||
)
|
||
|
||
func IsSuggestionBasisKind(kind string) bool {
|
||
switch strings.ToLower(strings.TrimSpace(kind)) {
|
||
case SuggestBasisAudience, SuggestBasisPain, SuggestBasisContext, SuggestBasisTag, SuggestBasisCapability, SuggestBasisExclude:
|
||
return true
|
||
default:
|
||
return false
|
||
}
|
||
}
|
||
|
||
/*
|
||
WatchTermSuggestion 是一則關鍵字建議。
|
||
|
||
Reason 是必填的：使用者要逐條決定採不採用，看不到「為什麼建議這個詞」就只能全採或全不採，
|
||
那這個功能就退化成一個猜測產生器。
|
||
*/
|
||
type WatchTermSuggestion struct {
|
||
Term string `json:"term"`
|
||
Reason string `json:"reason"`
|
||
Usage string `json:"usage"`
|
||
BasisKind string `json:"basis_kind,omitempty"`
|
||
BasisText string `json:"basis_text,omitempty"`
|
||
}
|
||
|
||
func NormalizeSuggestUsage(s string) string {
|
||
if strings.EqualFold(strings.TrimSpace(s), SuggestUsageExclude) {
|
||
return SuggestUsageExclude
|
||
}
|
||
return SuggestUsageInclude
|
||
}
|
||
|
||
/*
|
||
CleanSuggestions 收掉空白與重複，丟掉沒有理由的項目，並套用數量上限。
|
||
|
||
沒有理由的項目直接丟：補一句「AI 建議」等於假裝有理由，比少一則更糟。
|
||
include 必須能在 Threads 搜到：已合規的原詞保留；過長或超過兩個 token 的先收成短詞變體，
|
||
變體也沒有才丟掉。exclude 仍用較寬的長度界線（訂閱排除詞可能較長）。
|
||
*/
|
||
func CleanSuggestions(in []WatchTermSuggestion, limit int) []WatchTermSuggestion {
|
||
if limit <= 0 || limit > MaxSuggestions {
|
||
limit = MaxSuggestions
|
||
}
|
||
out := make([]WatchTermSuggestion, 0, len(in))
|
||
seen := map[string]bool{}
|
||
for _, s := range in {
|
||
term := NormalizeSearchTerm(s.Term)
|
||
reason := strings.TrimSpace(s.Reason)
|
||
if term == "" || reason == "" {
|
||
continue
|
||
}
|
||
usage := NormalizeSuggestUsage(s.Usage)
|
||
basisText := strings.TrimSpace(s.BasisText)
|
||
if usage == SuggestUsageInclude {
|
||
if !IsThreadsSearchable(term) {
|
||
variants := SearchableTermVariants(term, true)
|
||
if len(variants) == 0 {
|
||
continue
|
||
}
|
||
if basisText == "" {
|
||
basisText = term
|
||
}
|
||
term = variants[0]
|
||
}
|
||
} else {
|
||
// exclude: keep broader length; still reject empty after normalize
|
||
n := len([]rune(term))
|
||
if n < MinTermLen || n > MaxTermLen {
|
||
continue
|
||
}
|
||
}
|
||
key := strings.ToLower(term)
|
||
if seen[key] {
|
||
continue
|
||
}
|
||
seen[key] = true
|
||
out = append(out, WatchTermSuggestion{
|
||
Term: term, Reason: reason, Usage: usage,
|
||
BasisKind: strings.TrimSpace(s.BasisKind), BasisText: basisText,
|
||
})
|
||
if len(out) >= limit {
|
||
break
|
||
}
|
||
}
|
||
return out
|
||
}
|