refactor: split modules and harden scraping workflows

internal/handler/series.go

@@ -8,6 +8,7 @@ package handler
 import (
 	"net/http"
 	"sort"
+	"strconv"
 
 	"github.com/gin-gonic/gin"
 	"gorm.io/gorm"
@@ -31,15 +32,20 @@ func listSeasonsHandler(svc *service.Container) gin.HandlerFunc {
 				return
 			}
 		}
-		var rows []model.Media
-		err := svc.Repo.DB.Where(&model.Media{LibraryID: libID}).
-			Order("season_num asc, episode_num asc").
-			Find(&rows).Error
-		if err != nil && err != gorm.ErrRecordNotFound {
-			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
-			return
-		}
 		visibility := mediaVisibilityForRequest(c, svc)
+		var rows []model.Media
+		const pageSize = 2000
+		for page := 1; ; page++ {
+			pageRows, total, err := svc.Media.ListMediaVisible(c.Request.Context(), libID, page, pageSize, visibility)
+			if err != nil && err != gorm.ErrRecordNotFound {
+				c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+				return
+			}
+			rows = append(rows, pageRows...)
+			if int64(len(rows)) >= total || len(pageRows) < pageSize {
+				break
+			}
+		}
 		buckets := make(map[int][]model.Media)
 		for _, r := range rows {
 			if !visibility.Allows(&r) {
@@ -55,3 +61,65 @@ func listSeasonsHandler(svc *service.Container) gin.HandlerFunc {
 		c.JSON(http.StatusOK, gin.H{"seasons": out})
 	}
 }
+
+func listLibrarySeriesHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		libID := c.Param("id")
+		if lib, err := svc.Repo.Library.FindByID(c.Request.Context(), libID); err == nil && lib != nil {
+			if !service.LibraryVisibleForUser(c.Request.Context(), svc.Repo, *lib, mediaVisibilityForRequest(c, svc)) {
+				c.JSON(http.StatusNotFound, gin.H{"error": "not found"})
+				return
+			}
+		}
+		items, total, err := svc.Media.ListLibrarySeriesCards(c.Request.Context(), libID, mediaVisibilityForRequest(c, svc))
+		if err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+			return
+		}
+		page, _ := strconv.Atoi(c.DefaultQuery("page", "1"))
+		size, _ := strconv.Atoi(c.DefaultQuery("page_size", "500"))
+		if page < 1 {
+			page = 1
+		}
+		if size <= 0 || size > 1000 {
+			size = 500
+		}
+		start := (page - 1) * size
+		if start > len(items) {
+			start = len(items)
+		}
+		end := start + size
+		if end > len(items) {
+			end = len(items)
+		}
+		c.JSON(http.StatusOK, gin.H{
+			"items":     items[start:end],
+			"total":     total,
+			"page":      page,
+			"page_size": size,
+		})
+	}
+}
+
+func listLibrarySeriesEpisodesHandler(svc *service.Container) gin.HandlerFunc {
+	return func(c *gin.Context) {
+		libID := c.Param("id")
+		key := c.Query("key")
+		if key == "" {
+			c.JSON(http.StatusBadRequest, gin.H{"error": "key is required"})
+			return
+		}
+		if lib, err := svc.Repo.Library.FindByID(c.Request.Context(), libID); err == nil && lib != nil {
+			if !service.LibraryVisibleForUser(c.Request.Context(), svc.Repo, *lib, mediaVisibilityForRequest(c, svc)) {
+				c.JSON(http.StatusNotFound, gin.H{"error": "not found"})
+				return
+			}
+		}
+		items, err := svc.Media.ListLibrarySeriesEpisodes(c.Request.Context(), libID, key, mediaVisibilityForRequest(c, svc))
+		if err != nil {
+			c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
+			return
+		}
+		c.JSON(http.StatusOK, gin.H{"items": items, "total": len(items)})
+	}
+}