396 lines
12 KiB
Go
396 lines
12 KiB
Go
package handler
|
||
|
||
import (
|
||
"encoding/json"
|
||
"net/http"
|
||
"strconv"
|
||
"strings"
|
||
|
||
"soul-api/internal/database"
|
||
"soul-api/internal/model"
|
||
|
||
"github.com/gin-gonic/gin"
|
||
"gorm.io/gorm"
|
||
)
|
||
|
||
// excludeParts 排除序言、尾声、附录（不参与精选推荐/热门排序）
|
||
var excludeParts = []string{"序言", "尾声", "附录"}
|
||
|
||
// BookAllChapters GET /api/book/all-chapters 返回所有章节（列表，来自 chapters 表）
|
||
// 排序须与管理端 PUT /api/db/book action=reorder 一致：按 sort_order 升序，同序按 id
|
||
// 免费判断：system_config.free_chapters / chapter_config.freeChapters 优先于 chapters.is_free
|
||
// 支持 excludeFixed=1：排除序言、尾声、附录（目录页固定模块，不参与中间篇章）
|
||
func BookAllChapters(c *gin.Context) {
|
||
db := database.DB()
|
||
q := db.Model(&model.Chapter{})
|
||
if c.Query("excludeFixed") == "1" {
|
||
for _, p := range excludeParts {
|
||
q = q.Where("part_title NOT LIKE ?", "%"+p+"%")
|
||
}
|
||
}
|
||
var list []model.Chapter
|
||
if err := q.Order("COALESCE(sort_order, 999999) ASC, id ASC").Find(&list).Error; err != nil {
|
||
c.JSON(http.StatusOK, gin.H{"success": true, "data": []interface{}{}})
|
||
return
|
||
}
|
||
freeIDs := getFreeChapterIDs(db)
|
||
for i := range list {
|
||
if freeIDs[list[i].ID] {
|
||
t := true
|
||
z := float64(0)
|
||
list[i].IsFree = &t
|
||
list[i].Price = &z
|
||
}
|
||
}
|
||
c.JSON(http.StatusOK, gin.H{"success": true, "data": list})
|
||
}
|
||
|
||
// BookChapterByID GET /api/book/chapter/:id 按业务 id 查询（兼容旧链接）
|
||
func BookChapterByID(c *gin.Context) {
|
||
id := c.Param("id")
|
||
if id == "" {
|
||
c.JSON(http.StatusBadRequest, gin.H{"success": false, "error": "缺少 id"})
|
||
return
|
||
}
|
||
findChapterAndRespond(c, func(db *gorm.DB) *gorm.DB {
|
||
return db.Where("id = ?", id)
|
||
})
|
||
}
|
||
|
||
// BookChapterByMID GET /api/book/chapter/by-mid/:mid 按自增主键 mid 查询（新链接推荐）
|
||
func BookChapterByMID(c *gin.Context) {
|
||
midStr := c.Param("mid")
|
||
if midStr == "" {
|
||
c.JSON(http.StatusBadRequest, gin.H{"success": false, "error": "缺少 mid"})
|
||
return
|
||
}
|
||
mid, err := strconv.Atoi(midStr)
|
||
if err != nil || mid < 1 {
|
||
c.JSON(http.StatusBadRequest, gin.H{"success": false, "error": "mid 必须为正整数"})
|
||
return
|
||
}
|
||
findChapterAndRespond(c, func(db *gorm.DB) *gorm.DB {
|
||
return db.Where("mid = ?", mid)
|
||
})
|
||
}
|
||
|
||
// getFreeChapterIDs 从 system_config 读取免费章节 ID 列表（free_chapters 或 chapter_config.freeChapters）
|
||
func getFreeChapterIDs(db *gorm.DB) map[string]bool {
|
||
ids := make(map[string]bool)
|
||
for _, key := range []string{"free_chapters", "chapter_config"} {
|
||
var row model.SystemConfig
|
||
if err := db.Where("config_key = ?", key).First(&row).Error; err != nil {
|
||
continue
|
||
}
|
||
var val interface{}
|
||
if err := json.Unmarshal(row.ConfigValue, &val); err != nil {
|
||
continue
|
||
}
|
||
if key == "free_chapters" {
|
||
if arr, ok := val.([]interface{}); ok {
|
||
for _, v := range arr {
|
||
if s, ok := v.(string); ok {
|
||
ids[s] = true
|
||
}
|
||
}
|
||
}
|
||
} else if key == "chapter_config" {
|
||
if m, ok := val.(map[string]interface{}); ok {
|
||
if arr, ok := m["freeChapters"].([]interface{}); ok {
|
||
for _, v := range arr {
|
||
if s, ok := v.(string); ok {
|
||
ids[s] = true
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
}
|
||
return ids
|
||
}
|
||
|
||
// findChapterAndRespond 按条件查章节并返回统一格式
|
||
// 免费判断优先级：system_config.free_chapters / chapter_config.freeChapters > chapters.is_free/price
|
||
func findChapterAndRespond(c *gin.Context, whereFn func(*gorm.DB) *gorm.DB) {
|
||
var ch model.Chapter
|
||
db := database.DB()
|
||
if err := whereFn(db).First(&ch).Error; err != nil {
|
||
if err == gorm.ErrRecordNotFound {
|
||
c.JSON(http.StatusNotFound, gin.H{"success": false, "error": "章节不存在"})
|
||
return
|
||
}
|
||
c.JSON(http.StatusOK, gin.H{"success": false, "error": err.Error()})
|
||
return
|
||
}
|
||
out := gin.H{
|
||
"success": true,
|
||
"data": ch,
|
||
"content": ch.Content,
|
||
"chapterTitle": ch.ChapterTitle,
|
||
"partTitle": ch.PartTitle,
|
||
"id": ch.ID,
|
||
"mid": ch.MID,
|
||
"sectionTitle": ch.SectionTitle,
|
||
}
|
||
isFreeFromConfig := getFreeChapterIDs(db)[ch.ID]
|
||
if isFreeFromConfig {
|
||
out["isFree"] = true
|
||
out["price"] = float64(0)
|
||
} else {
|
||
if ch.IsFree != nil {
|
||
out["isFree"] = *ch.IsFree
|
||
}
|
||
if ch.Price != nil {
|
||
out["price"] = *ch.Price
|
||
if *ch.Price == 0 {
|
||
out["isFree"] = true
|
||
}
|
||
}
|
||
}
|
||
c.JSON(http.StatusOK, out)
|
||
}
|
||
|
||
// BookChapters GET/POST/PUT/DELETE /api/book/chapters（与 app/api/book/chapters 一致，用 GORM）
|
||
func BookChapters(c *gin.Context) {
|
||
db := database.DB()
|
||
switch c.Request.Method {
|
||
case http.MethodGet:
|
||
partId := c.Query("partId")
|
||
status := c.Query("status")
|
||
if status == "" {
|
||
status = "published"
|
||
}
|
||
page, _ := strconv.Atoi(c.DefaultQuery("page", "1"))
|
||
pageSize, _ := strconv.Atoi(c.DefaultQuery("pageSize", "100"))
|
||
if page < 1 {
|
||
page = 1
|
||
}
|
||
if pageSize < 1 || pageSize > 500 {
|
||
pageSize = 100
|
||
}
|
||
q := db.Model(&model.Chapter{})
|
||
if partId != "" {
|
||
q = q.Where("part_id = ?", partId)
|
||
}
|
||
if status != "" && status != "all" {
|
||
q = q.Where("status = ?", status)
|
||
}
|
||
var total int64
|
||
q.Count(&total)
|
||
var list []model.Chapter
|
||
q.Order("sort_order ASC, id ASC").Offset((page - 1) * pageSize).Limit(pageSize).Find(&list)
|
||
totalPages := int(total) / pageSize
|
||
if int(total)%pageSize > 0 {
|
||
totalPages++
|
||
}
|
||
c.JSON(http.StatusOK, gin.H{
|
||
"success": true,
|
||
"data": gin.H{
|
||
"list": list, "total": total, "page": page, "pageSize": pageSize, "totalPages": totalPages,
|
||
},
|
||
})
|
||
return
|
||
case http.MethodPost:
|
||
var body model.Chapter
|
||
if err := c.ShouldBindJSON(&body); err != nil {
|
||
c.JSON(http.StatusBadRequest, gin.H{"success": false, "error": "请求体无效"})
|
||
return
|
||
}
|
||
if body.ID == "" || body.PartID == "" || body.ChapterID == "" {
|
||
c.JSON(http.StatusBadRequest, gin.H{"success": false, "error": "缺少必要字段 id/partId/chapterId"})
|
||
return
|
||
}
|
||
if err := db.Create(&body).Error; err != nil {
|
||
c.JSON(http.StatusOK, gin.H{"success": false, "error": err.Error()})
|
||
return
|
||
}
|
||
c.JSON(http.StatusOK, gin.H{"success": true, "data": body})
|
||
return
|
||
case http.MethodPut:
|
||
var body model.Chapter
|
||
if err := c.ShouldBindJSON(&body); err != nil || body.ID == "" {
|
||
c.JSON(http.StatusBadRequest, gin.H{"success": false, "error": "缺少 id"})
|
||
return
|
||
}
|
||
updates := map[string]interface{}{
|
||
"part_title": body.PartTitle, "chapter_title": body.ChapterTitle, "section_title": body.SectionTitle,
|
||
"content": body.Content, "word_count": body.WordCount, "is_free": body.IsFree, "price": body.Price,
|
||
"sort_order": body.SortOrder, "status": body.Status,
|
||
}
|
||
if body.EditionStandard != nil {
|
||
updates["edition_standard"] = body.EditionStandard
|
||
}
|
||
if body.EditionPremium != nil {
|
||
updates["edition_premium"] = body.EditionPremium
|
||
}
|
||
if err := db.Model(&model.Chapter{}).Where("id = ?", body.ID).Updates(updates).Error; err != nil {
|
||
c.JSON(http.StatusOK, gin.H{"success": false, "error": err.Error()})
|
||
return
|
||
}
|
||
c.JSON(http.StatusOK, gin.H{"success": true})
|
||
return
|
||
case http.MethodDelete:
|
||
id := c.Query("id")
|
||
if id == "" {
|
||
c.JSON(http.StatusBadRequest, gin.H{"success": false, "error": "缺少 id"})
|
||
return
|
||
}
|
||
if err := 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})
|
||
return
|
||
}
|
||
c.JSON(http.StatusOK, gin.H{"success": false, "error": "不支持的请求方法"})
|
||
}
|
||
|
||
// bookHotChaptersSorted 按精选推荐算法排序：阅读量优先，同量按更新时间；排除序言/尾声/附录
|
||
func bookHotChaptersSorted(db *gorm.DB, limit int) []model.Chapter {
|
||
q := db.Model(&model.Chapter{})
|
||
for _, p := range excludeParts {
|
||
q = q.Where("part_title NOT LIKE ?", "%"+p+"%")
|
||
}
|
||
var all []model.Chapter
|
||
if err := q.Order("sort_order ASC, id ASC").Find(&all).Error; err != nil || len(all) == 0 {
|
||
return nil
|
||
}
|
||
// 从 reading_progress 统计阅读量
|
||
ids := make([]string, 0, len(all))
|
||
for _, c := range all {
|
||
ids = append(ids, c.ID)
|
||
}
|
||
var counts []struct {
|
||
SectionID string `gorm:"column:section_id"`
|
||
Cnt int64 `gorm:"column:cnt"`
|
||
}
|
||
db.Table("reading_progress").Select("section_id, COUNT(*) as cnt").
|
||
Where("section_id IN ?", ids).Group("section_id").Scan(&counts)
|
||
countMap := make(map[string]int64)
|
||
for _, r := range counts {
|
||
countMap[r.SectionID] = r.Cnt
|
||
}
|
||
// 按阅读量降序、同量按 updated_at 降序
|
||
type withSort struct {
|
||
ch model.Chapter
|
||
cnt int64
|
||
}
|
||
withCnt := make([]withSort, 0, len(all))
|
||
for _, c := range all {
|
||
withCnt = append(withCnt, withSort{ch: c, cnt: countMap[c.ID]})
|
||
}
|
||
for i := 0; i < len(withCnt)-1; i++ {
|
||
for j := i + 1; j < len(withCnt); j++ {
|
||
if withCnt[j].cnt > withCnt[i].cnt ||
|
||
(withCnt[j].cnt == withCnt[i].cnt && withCnt[j].ch.UpdatedAt.After(withCnt[i].ch.UpdatedAt)) {
|
||
withCnt[i], withCnt[j] = withCnt[j], withCnt[i]
|
||
}
|
||
}
|
||
}
|
||
out := make([]model.Chapter, 0, limit)
|
||
for i := 0; i < limit && i < len(withCnt); i++ {
|
||
out = append(out, withCnt[i].ch)
|
||
}
|
||
return out
|
||
}
|
||
|
||
// BookHot GET /api/book/hot 热门章节（按阅读量排序，排除序言/尾声/附录）
|
||
func BookHot(c *gin.Context) {
|
||
list := bookHotChaptersSorted(database.DB(), 10)
|
||
if len(list) == 0 {
|
||
// 兜底：按 sort_order 取前 10，同样排除序言/尾声/附录
|
||
q := database.DB().Model(&model.Chapter{})
|
||
for _, p := range excludeParts {
|
||
q = q.Where("part_title NOT LIKE ?", "%"+p+"%")
|
||
}
|
||
q.Order("sort_order ASC, id ASC").Limit(10).Find(&list)
|
||
}
|
||
c.JSON(http.StatusOK, gin.H{"success": true, "data": list})
|
||
}
|
||
|
||
// BookRecommended GET /api/book/recommended 精选推荐（首页「为你推荐」前 3 章，带 热门/推荐/精选 标签）
|
||
func BookRecommended(c *gin.Context) {
|
||
list := bookHotChaptersSorted(database.DB(), 3)
|
||
if len(list) == 0 {
|
||
// 兜底：按 updated_at 取前 3，同样排除序言/尾声/附录
|
||
q := database.DB().Model(&model.Chapter{})
|
||
for _, p := range excludeParts {
|
||
q = q.Where("part_title NOT LIKE ?", "%"+p+"%")
|
||
}
|
||
q.Order("updated_at DESC, id ASC").Limit(3).Find(&list)
|
||
}
|
||
tags := []string{"热门", "推荐", "精选"}
|
||
out := make([]gin.H, 0, len(list))
|
||
for i, ch := range list {
|
||
tag := "精选"
|
||
if i < len(tags) {
|
||
tag = tags[i]
|
||
}
|
||
out = append(out, gin.H{
|
||
"id": ch.ID, "mid": ch.MID, "sectionTitle": ch.SectionTitle, "partTitle": ch.PartTitle,
|
||
"chapterTitle": ch.ChapterTitle, "tag": tag,
|
||
"isFree": ch.IsFree, "price": ch.Price, "isNew": ch.IsNew,
|
||
})
|
||
}
|
||
c.JSON(http.StatusOK, gin.H{"success": true, "data": out})
|
||
}
|
||
|
||
// BookLatestChapters GET /api/book/latest-chapters
|
||
func BookLatestChapters(c *gin.Context) {
|
||
var list []model.Chapter
|
||
database.DB().Order("updated_at DESC, id ASC").Limit(20).Find(&list)
|
||
c.JSON(http.StatusOK, gin.H{"success": true, "data": list})
|
||
}
|
||
|
||
func escapeLikeBook(s string) string {
|
||
s = strings.ReplaceAll(s, "\\", "\\\\")
|
||
s = strings.ReplaceAll(s, "%", "\\%")
|
||
s = strings.ReplaceAll(s, "_", "\\_")
|
||
return s
|
||
}
|
||
|
||
// BookSearch GET /api/book/search?q= 章节搜索（与 /api/search 逻辑一致）
|
||
func BookSearch(c *gin.Context) {
|
||
q := strings.TrimSpace(c.Query("q"))
|
||
if q == "" {
|
||
c.JSON(http.StatusOK, gin.H{"success": true, "results": []interface{}{}, "total": 0, "keyword": ""})
|
||
return
|
||
}
|
||
pattern := "%" + escapeLikeBook(q) + "%"
|
||
var list []model.Chapter
|
||
err := database.DB().Model(&model.Chapter{}).
|
||
Where("section_title LIKE ? OR content LIKE ?", pattern, pattern).
|
||
Order("sort_order ASC, id ASC").
|
||
Limit(20).
|
||
Find(&list).Error
|
||
if err != nil {
|
||
c.JSON(http.StatusOK, gin.H{"success": true, "results": []interface{}{}, "total": 0, "keyword": q})
|
||
return
|
||
}
|
||
lowerQ := strings.ToLower(q)
|
||
results := make([]gin.H, 0, len(list))
|
||
for _, ch := range list {
|
||
matchType := "content"
|
||
if strings.Contains(strings.ToLower(ch.SectionTitle), lowerQ) {
|
||
matchType = "title"
|
||
}
|
||
results = append(results, gin.H{
|
||
"id": ch.ID, "mid": ch.MID, "title": ch.SectionTitle, "part": ch.PartTitle, "chapter": ch.ChapterTitle,
|
||
"isFree": ch.IsFree, "matchType": matchType,
|
||
})
|
||
}
|
||
c.JSON(http.StatusOK, gin.H{"success": true, "results": results, "total": len(results), "keyword": q})
|
||
}
|
||
|
||
// BookStats GET /api/book/stats
|
||
func BookStats(c *gin.Context) {
|
||
var total int64
|
||
database.DB().Model(&model.Chapter{}).Count(&total)
|
||
c.JSON(http.StatusOK, gin.H{"success": true, "data": gin.H{"totalChapters": total}})
|
||
}
|
||
|
||
// BookSync GET/POST /api/book/sync
|
||
func BookSync(c *gin.Context) {
|
||
c.JSON(http.StatusOK, gin.H{"success": true, "message": "同步由 DB 维护"})
|
||
}
|