616 lines
19 KiB
Go
616 lines
19 KiB
Go
package handler
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import (
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"context"
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"encoding/json"
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"math"
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"net/http"
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"sort"
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"time"
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"soul-api/internal/database"
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"soul-api/internal/model"
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"github.com/gin-gonic/gin"
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"gorm.io/gorm"
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)
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// listSelectCols 列表/导出不加载 content，大幅加速
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var listSelectCols = []string{
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"id", "mid", "section_title", "price", "is_free", "is_new",
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"part_id", "part_title", "chapter_id", "chapter_title", "sort_order",
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"hot_score", "updated_at",
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}
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// sectionListItem 与前端 SectionListItem 一致（小写驼峰）
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type sectionListItem struct {
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ID string `json:"id"`
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MID int `json:"mid,omitempty"` // 自增主键，小程序跳转用
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Title string `json:"title"`
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Price float64 `json:"price"`
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IsFree *bool `json:"isFree,omitempty"`
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IsNew *bool `json:"isNew,omitempty"` // stitch_soul：标记最新新增
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PartID string `json:"partId"`
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PartTitle string `json:"partTitle"`
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ChapterID string `json:"chapterId"`
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ChapterTitle string `json:"chapterTitle"`
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FilePath *string `json:"filePath,omitempty"`
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ClickCount int64 `json:"clickCount"` // 阅读次数（reading_progress）
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PayCount int64 `json:"payCount"` // 付款笔数（orders.product_type=section）
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HotScore float64 `json:"hotScore"` // 热度积分（加权计算）
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IsPinned bool `json:"isPinned,omitempty"` // 是否置顶（仅 ranking 返回）
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}
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// computeSectionListWithHotScore 计算章节列表（含 hotScore），保持 sort_order 顺序，供 章节管理 树使用
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func computeSectionListWithHotScore(db *gorm.DB) ([]sectionListItem, error) {
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sections, err := computeSectionsWithHotScore(db, false)
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if err != nil {
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return nil, err
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}
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return sections, nil
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}
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// computeArticleRankingSections 统一计算内容排行榜：置顶优先 + 按 hotScore 降序
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// 供管理端内容排行榜页与小程序首页精选推荐共用，排序与置顶均在后端计算
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func computeArticleRankingSections(db *gorm.DB) ([]sectionListItem, error) {
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sections, err := computeSectionsWithHotScore(db, true)
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if err != nil {
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return nil, err
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}
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// 读取置顶配置 pinned_section_ids
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pinnedIDs := []string{}
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var cfg model.SystemConfig
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if err := db.Where("config_key = ?", "pinned_section_ids").First(&cfg).Error; err == nil && len(cfg.ConfigValue) > 0 {
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_ = json.Unmarshal(cfg.ConfigValue, &pinnedIDs)
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}
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pinnedSet := make(map[string]int) // id -> 置顶顺序
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for i, id := range pinnedIDs {
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if id != "" {
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pinnedSet[id] = i
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}
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}
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// 排序：置顶优先（按置顶顺序），其次按 hotScore 降序
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sort.Slice(sections, func(i, j int) bool {
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pi, pj := pinnedSet[sections[i].ID], pinnedSet[sections[j].ID]
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piOk, pjOk := sections[i].IsPinned, sections[j].IsPinned
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if piOk && !pjOk {
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return true
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}
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if !piOk && pjOk {
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return false
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}
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if piOk && pjOk {
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return pi < pj
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}
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return sections[i].HotScore > sections[j].HotScore
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})
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return sections, nil
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}
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// computeSectionsWithHotScore 内部：计算 hotScore，可选设置 isPinned
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func computeSectionsWithHotScore(db *gorm.DB, setPinned bool) ([]sectionListItem, error) {
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var rows []model.Chapter
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if err := db.Select(listSelectCols).Order("sort_order ASC, id ASC").Find(&rows).Error; err != nil {
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return nil, err
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}
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ids := make([]string, 0, len(rows))
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for _, r := range rows {
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ids = append(ids, r.ID)
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}
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readCountMap := make(map[string]int64)
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if len(ids) > 0 {
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var rp []struct {
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SectionID string `gorm:"column:section_id"`
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Cnt int64 `gorm:"column:cnt"`
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}
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db.Table("reading_progress").Select("section_id, COUNT(*) as cnt").
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Where("section_id IN ?", ids).Group("section_id").Scan(&rp)
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for _, r := range rp {
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readCountMap[r.SectionID] = r.Cnt
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}
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}
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payCountMap := make(map[string]int64)
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if len(ids) > 0 {
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var op []struct {
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ProductID string `gorm:"column:product_id"`
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Cnt int64 `gorm:"column:cnt"`
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}
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db.Model(&model.Order{}).
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Select("product_id, COUNT(*) as cnt").
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Where("product_type = ? AND product_id IN ? AND status IN ?", "section", ids, []string{"paid", "completed", "success"}).
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Group("product_id").Scan(&op)
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for _, r := range op {
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payCountMap[r.ProductID] = r.Cnt
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}
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}
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readWeight, payWeight, recencyWeight := 0.5, 0.3, 0.2
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var cfg model.SystemConfig
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if err := db.Where("config_key = ?", "article_ranking_weights").First(&cfg).Error; err == nil && len(cfg.ConfigValue) > 0 {
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var v struct {
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ReadWeight float64 `json:"readWeight"`
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RecencyWeight float64 `json:"recencyWeight"`
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PayWeight float64 `json:"payWeight"`
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}
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if err := json.Unmarshal(cfg.ConfigValue, &v); err == nil {
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if v.ReadWeight > 0 {
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readWeight = v.ReadWeight
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}
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if v.PayWeight > 0 {
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payWeight = v.PayWeight
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}
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if v.RecencyWeight > 0 {
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recencyWeight = v.RecencyWeight
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}
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}
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}
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pinnedIDs := []string{}
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if setPinned {
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var cfg2 model.SystemConfig
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if err := db.Where("config_key = ?", "pinned_section_ids").First(&cfg2).Error; err == nil && len(cfg2.ConfigValue) > 0 {
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_ = json.Unmarshal(cfg2.ConfigValue, &pinnedIDs)
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}
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}
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pinnedSet := make(map[string]bool)
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for _, id := range pinnedIDs {
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if id != "" {
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pinnedSet[id] = true
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}
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}
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now := time.Now()
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sections := make([]sectionListItem, 0, len(rows))
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for _, r := range rows {
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price := 1.0
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if r.Price != nil {
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price = *r.Price
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}
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readCnt := readCountMap[r.ID]
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payCnt := payCountMap[r.ID]
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recencyScore := 0.0
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if !r.UpdatedAt.IsZero() {
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days := now.Sub(r.UpdatedAt).Hours() / 24
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recencyScore = math.Max(0, (30-days)/30)
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if recencyScore > 1 {
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recencyScore = 1
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}
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}
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hot := float64(readCnt)*readWeight + float64(payCnt)*payWeight + recencyScore*recencyWeight
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item := sectionListItem{
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ID: r.ID,
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MID: r.MID,
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Title: r.SectionTitle,
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Price: price,
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IsFree: r.IsFree,
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IsNew: r.IsNew,
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PartID: r.PartID,
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PartTitle: r.PartTitle,
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ChapterID: r.ChapterID,
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ChapterTitle: r.ChapterTitle,
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ClickCount: readCnt,
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PayCount: payCnt,
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HotScore: hot,
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}
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if setPinned {
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item.IsPinned = pinnedSet[r.ID]
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}
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sections = append(sections, item)
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}
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return sections, nil
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}
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// DBBookAction GET/POST/PUT /api/db/book
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func DBBookAction(c *gin.Context) {
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db := database.DB()
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switch c.Request.Method {
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case http.MethodGet:
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action := c.Query("action")
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id := c.Query("id")
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switch action {
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case "list":
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// 章节管理树：按 sort_order 顺序，含 hotScore
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sections, err := computeSectionListWithHotScore(db)
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if err != nil {
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c.JSON(http.StatusOK, gin.H{"success": false, "error": err.Error(), "sections": []sectionListItem{}})
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return
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}
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c.JSON(http.StatusOK, gin.H{"success": true, "sections": sections, "total": len(sections)})
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return
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case "ranking":
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// 内容排行榜：置顶优先 + hotScore 降序，排序由后端统一计算，前端只展示
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sections, err := computeArticleRankingSections(db)
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if err != nil {
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c.JSON(http.StatusOK, gin.H{"success": false, "error": err.Error(), "sections": []sectionListItem{}})
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return
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}
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c.JSON(http.StatusOK, gin.H{"success": true, "sections": sections, "total": len(sections)})
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return
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case "read":
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if id == "" {
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c.JSON(http.StatusOK, gin.H{"success": false, "error": "缺少 id"})
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return
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}
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var ch model.Chapter
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if err := db.Where("id = ?", id).First(&ch).Error; err != nil {
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if err == gorm.ErrRecordNotFound {
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c.JSON(http.StatusOK, gin.H{"success": false, "error": "章节不存在"})
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return
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}
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c.JSON(http.StatusOK, gin.H{"success": false, "error": err.Error()})
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return
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}
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price := 1.0
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if ch.Price != nil {
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price = *ch.Price
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}
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c.JSON(http.StatusOK, gin.H{
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"success": true,
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"section": gin.H{
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"id": ch.ID,
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"title": ch.SectionTitle,
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"price": price,
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"content": ch.Content,
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"isNew": ch.IsNew,
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"partId": ch.PartID,
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"partTitle": ch.PartTitle,
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"chapterId": ch.ChapterID,
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"chapterTitle": ch.ChapterTitle,
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"editionStandard": ch.EditionStandard,
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"editionPremium": ch.EditionPremium,
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},
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})
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return
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case "section-orders":
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// 某章节的付款记录（管理端展示）
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if id == "" {
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c.JSON(http.StatusOK, gin.H{"success": false, "error": "缺少 id"})
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return
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}
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var orders []model.Order
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if err := db.Where("product_type = ? AND product_id = ? AND status IN ?", "section", id, []string{"paid", "completed", "success"}).
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Order("pay_time DESC, created_at DESC").Limit(200).Find(&orders).Error; err != nil {
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c.JSON(http.StatusOK, gin.H{"success": false, "error": err.Error(), "orders": []model.Order{}})
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return
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}
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c.JSON(http.StatusOK, gin.H{"success": true, "orders": orders})
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return
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case "export":
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var rows []model.Chapter
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if err := db.Select(listSelectCols).Order("sort_order ASC, id ASC").Find(&rows).Error; err != nil {
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c.JSON(http.StatusOK, gin.H{"success": false, "error": err.Error()})
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return
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}
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sections := make([]sectionListItem, 0, len(rows))
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for _, r := range rows {
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price := 1.0
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if r.Price != nil {
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price = *r.Price
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}
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sections = append(sections, sectionListItem{
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ID: r.ID, Title: r.SectionTitle, Price: price, IsFree: r.IsFree, IsNew: r.IsNew,
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PartID: r.PartID, PartTitle: r.PartTitle, ChapterID: r.ChapterID, ChapterTitle: r.ChapterTitle,
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})
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}
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c.JSON(http.StatusOK, gin.H{"success": true, "sections": sections})
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return
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default:
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c.JSON(http.StatusOK, gin.H{"success": false, "error": "无效的 action"})
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return
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}
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case http.MethodPost:
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var body struct {
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Action string `json:"action"`
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Data []importItem `json:"data"`
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}
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if err := c.ShouldBindJSON(&body); err != nil {
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c.JSON(http.StatusOK, gin.H{"success": false, "error": "请求体无效"})
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return
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}
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switch body.Action {
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case "sync":
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c.JSON(http.StatusOK, gin.H{"success": true, "message": "同步完成（Gin 无文件源时可从 DB 已存在数据视为已同步）"})
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return
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case "import":
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imported, failed := 0, 0
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for _, item := range body.Data {
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price := 1.0
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if item.Price != nil {
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price = *item.Price
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}
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isFree := false
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if item.IsFree != nil {
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isFree = *item.IsFree
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}
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wordCount := len(item.Content)
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status := "published"
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editionStandard, editionPremium := true, false
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ch := model.Chapter{
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ID: item.ID,
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PartID: strPtr(item.PartID, "part-1"),
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PartTitle: strPtr(item.PartTitle, "未分类"),
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ChapterID: strPtr(item.ChapterID, "chapter-1"),
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ChapterTitle: strPtr(item.ChapterTitle, "未分类"),
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SectionTitle: item.Title,
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Content: item.Content,
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WordCount: &wordCount,
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IsFree: &isFree,
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Price: &price,
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Status: &status,
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EditionStandard: &editionStandard,
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EditionPremium: &editionPremium,
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}
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err := db.Where("id = ?", item.ID).First(&model.Chapter{}).Error
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if err == gorm.ErrRecordNotFound {
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err = db.Create(&ch).Error
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} else if err == nil {
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err = db.Model(&model.Chapter{}).Where("id = ?", item.ID).Updates(map[string]interface{}{
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"section_title": ch.SectionTitle,
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"content": ch.Content,
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"word_count": ch.WordCount,
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"is_free": ch.IsFree,
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"price": ch.Price,
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}).Error
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}
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if err != nil {
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failed++
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continue
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}
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imported++
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}
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c.JSON(http.StatusOK, gin.H{"success": true, "message": "导入完成", "imported": imported, "failed": failed})
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return
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default:
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c.JSON(http.StatusOK, gin.H{"success": false, "error": "无效的 action"})
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return
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}
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case http.MethodPut:
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var body struct {
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Action string `json:"action"`
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// reorder：新顺序，支持跨篇跨章时附带 partId/chapterId
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IDs []string `json:"ids"`
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Items []reorderItem `json:"items"`
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// move-sections：批量移动节到目标篇/章
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SectionIds []string `json:"sectionIds"`
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TargetPartID string `json:"targetPartId"`
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TargetChapterID string `json:"targetChapterId"`
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TargetPartTitle string `json:"targetPartTitle"`
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TargetChapterTitle string `json:"targetChapterTitle"`
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ID string `json:"id"`
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Title string `json:"title"`
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Content string `json:"content"`
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Price *float64 `json:"price"`
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IsFree *bool `json:"isFree"`
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IsNew *bool `json:"isNew"` // stitch_soul：标记最新新增
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EditionStandard *bool `json:"editionStandard"` // 是否属于普通版
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EditionPremium *bool `json:"editionPremium"` // 是否属于增值版
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PartID string `json:"partId"`
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PartTitle string `json:"partTitle"`
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ChapterID string `json:"chapterId"`
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ChapterTitle string `json:"chapterTitle"`
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HotScore *float64 `json:"hotScore"`
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}
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if err := c.ShouldBindJSON(&body); err != nil {
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c.JSON(http.StatusOK, gin.H{"success": false, "error": "请求体无效"})
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return
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}
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if body.Action == "reorder" {
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// 立即返回成功，后台异步执行排序更新
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if len(body.Items) > 0 {
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items := make([]reorderItem, len(body.Items))
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copy(items, body.Items)
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c.JSON(http.StatusOK, gin.H{"success": true})
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go func() {
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db := database.DB()
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for i, it := range items {
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if it.ID == "" {
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continue
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}
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up := map[string]interface{}{"sort_order": i}
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if it.PartID != "" {
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up["part_id"] = it.PartID
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}
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if it.PartTitle != "" {
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up["part_title"] = it.PartTitle
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}
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if it.ChapterID != "" {
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up["chapter_id"] = it.ChapterID
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}
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if it.ChapterTitle != "" {
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up["chapter_title"] = it.ChapterTitle
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}
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_ = db.WithContext(context.Background()).Model(&model.Chapter{}).Where("id = ?", it.ID).Updates(up).Error
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}
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}()
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return
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}
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if len(body.IDs) > 0 {
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ids := make([]string, len(body.IDs))
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copy(ids, body.IDs)
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c.JSON(http.StatusOK, gin.H{"success": true})
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go func() {
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db := database.DB()
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for i, id := range ids {
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if id != "" {
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_ = db.WithContext(context.Background()).Model(&model.Chapter{}).Where("id = ?", id).Update("sort_order", i).Error
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}
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}
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}()
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return
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}
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}
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if body.Action == "move-sections" {
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if len(body.SectionIds) == 0 {
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c.JSON(http.StatusOK, gin.H{"success": false, "error": "批量移动缺少 sectionIds（请先勾选要移动的节）"})
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return
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}
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if body.TargetPartID == "" || body.TargetChapterID == "" {
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c.JSON(http.StatusOK, gin.H{"success": false, "error": "批量移动缺少目标篇或目标章（targetPartId、targetChapterId）"})
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return
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}
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up := map[string]interface{}{
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"part_id": body.TargetPartID,
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"chapter_id": body.TargetChapterID,
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"part_title": body.TargetPartTitle,
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"chapter_title": body.TargetChapterTitle,
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}
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if err := db.Model(&model.Chapter{}).Where("id IN ?", body.SectionIds).Updates(up).Error; err != nil {
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c.JSON(http.StatusOK, gin.H{"success": false, "error": err.Error()})
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return
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}
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c.JSON(http.StatusOK, gin.H{"success": true, "message": "已移动", "count": len(body.SectionIds)})
|
||
return
|
||
}
|
||
if body.ID == "" {
|
||
c.JSON(http.StatusOK, gin.H{"success": false, "error": "缺少 id"})
|
||
return
|
||
}
|
||
price := 1.0
|
||
if body.Price != nil {
|
||
price = *body.Price
|
||
}
|
||
isFree := false
|
||
if body.IsFree != nil {
|
||
isFree = *body.IsFree
|
||
}
|
||
wordCount := len(body.Content)
|
||
updates := map[string]interface{}{
|
||
"section_title": body.Title,
|
||
"content": body.Content,
|
||
"word_count": wordCount,
|
||
"price": price,
|
||
"is_free": isFree,
|
||
}
|
||
if body.IsNew != nil {
|
||
updates["is_new"] = *body.IsNew
|
||
}
|
||
// 默认普通版：未传时按普通版处理
|
||
if body.EditionStandard != nil {
|
||
updates["edition_standard"] = *body.EditionStandard
|
||
} else if body.EditionPremium == nil {
|
||
updates["edition_standard"] = true
|
||
updates["edition_premium"] = false
|
||
}
|
||
if body.EditionPremium != nil {
|
||
updates["edition_premium"] = *body.EditionPremium
|
||
}
|
||
if body.HotScore != nil {
|
||
updates["hot_score"] = *body.HotScore
|
||
}
|
||
if body.PartID != "" {
|
||
updates["part_id"] = body.PartID
|
||
}
|
||
if body.PartTitle != "" {
|
||
updates["part_title"] = body.PartTitle
|
||
}
|
||
if body.ChapterID != "" {
|
||
updates["chapter_id"] = body.ChapterID
|
||
}
|
||
if body.ChapterTitle != "" {
|
||
updates["chapter_title"] = body.ChapterTitle
|
||
}
|
||
var existing model.Chapter
|
||
err := db.Where("id = ?", body.ID).First(&existing).Error
|
||
if err == gorm.ErrRecordNotFound {
|
||
// 新建：Create
|
||
partID := body.PartID
|
||
if partID == "" {
|
||
partID = "part-1"
|
||
}
|
||
partTitle := body.PartTitle
|
||
if partTitle == "" {
|
||
partTitle = "未分类"
|
||
}
|
||
chapterID := body.ChapterID
|
||
if chapterID == "" {
|
||
chapterID = "chapter-1"
|
||
}
|
||
chapterTitle := body.ChapterTitle
|
||
if chapterTitle == "" {
|
||
chapterTitle = "未分类"
|
||
}
|
||
editionStandard, editionPremium := true, false
|
||
if body.EditionPremium != nil && *body.EditionPremium {
|
||
editionStandard, editionPremium = false, true
|
||
} else if body.EditionStandard != nil {
|
||
editionStandard = *body.EditionStandard
|
||
}
|
||
status := "published"
|
||
ch := model.Chapter{
|
||
ID: body.ID,
|
||
PartID: partID,
|
||
PartTitle: partTitle,
|
||
ChapterID: chapterID,
|
||
ChapterTitle: chapterTitle,
|
||
SectionTitle: body.Title,
|
||
Content: body.Content,
|
||
WordCount: &wordCount,
|
||
IsFree: &isFree,
|
||
Price: &price,
|
||
Status: &status,
|
||
EditionStandard: &editionStandard,
|
||
EditionPremium: &editionPremium,
|
||
}
|
||
if body.IsNew != nil {
|
||
ch.IsNew = body.IsNew
|
||
}
|
||
if err := db.Create(&ch).Error; err != nil {
|
||
c.JSON(http.StatusOK, gin.H{"success": false, "error": err.Error()})
|
||
return
|
||
}
|
||
c.JSON(http.StatusOK, gin.H{"success": true})
|
||
return
|
||
}
|
||
if err != nil {
|
||
c.JSON(http.StatusOK, gin.H{"success": false, "error": err.Error()})
|
||
return
|
||
}
|
||
err = db.Model(&model.Chapter{}).Where("id = ?", body.ID).Updates(updates).Error
|
||
if err != nil {
|
||
c.JSON(http.StatusOK, gin.H{"success": false, "error": err.Error()})
|
||
return
|
||
}
|
||
c.JSON(http.StatusOK, gin.H{"success": true})
|
||
return
|
||
}
|
||
c.JSON(http.StatusOK, gin.H{"success": false, "error": "不支持的请求方法"})
|
||
}
|
||
|
||
type reorderItem struct {
|
||
ID string `json:"id"`
|
||
PartID string `json:"partId"`
|
||
PartTitle string `json:"partTitle"`
|
||
ChapterID string `json:"chapterId"`
|
||
ChapterTitle string `json:"chapterTitle"`
|
||
}
|
||
|
||
type importItem struct {
|
||
ID string `json:"id"`
|
||
Title string `json:"title"`
|
||
Content string `json:"content"`
|
||
Price *float64 `json:"price"`
|
||
IsFree *bool `json:"isFree"`
|
||
PartID *string `json:"partId"`
|
||
PartTitle *string `json:"partTitle"`
|
||
ChapterID *string `json:"chapterId"`
|
||
ChapterTitle *string `json:"chapterTitle"`
|
||
}
|
||
|
||
func strPtr(s *string, def string) string {
|
||
if s != nil && *s != "" {
|
||
return *s
|
||
}
|
||
return def
|
||
}
|
||
|
||
// DBBookDelete DELETE /api/db/book
|
||
func DBBookDelete(c *gin.Context) {
|
||
id := c.Query("id")
|
||
if id == "" {
|
||
c.JSON(http.StatusOK, gin.H{"success": false, "error": "缺少 id"})
|
||
return
|
||
}
|
||
if err := database.DB().Where("id = ?", id).Delete(&model.Chapter{}).Error; err != nil {
|
||
c.JSON(http.StatusOK, gin.H{"success": false, "error": err.Error()})
|
||
return
|
||
}
|
||
c.JSON(http.StatusOK, gin.H{"success": true})
|
||
}
|