feat: add `/api/tag` (#82)

api/memo.go

@@ -42,8 +42,12 @@ type MemoFind struct {
 	CreatorID *int       `json:"creatorId"`
 
 	// Domain specific fields
-	Pinned *bool
-	Tag    *string
+	Pinned        *bool
+	ContentSearch *string
+
+	// Pagination
+	Limit  int
+	Offset int
 }
 
 type MemoDelete struct {

server/memo.go

@@ -77,7 +77,14 @@ func (s *Server) registerMemoRoutes(g *echo.Group) {
 		}
 		tag := c.QueryParam("tag")
 		if tag != "" {
-			memoFind.Tag = &tag
+			contentSearch := "#" + tag + " "
+			memoFind.ContentSearch = &contentSearch
+		}
+		if limit, err := strconv.Atoi(c.QueryParam("limit")); err == nil {
+			memoFind.Limit = limit
+		}
+		if offset, err := strconv.Atoi(c.QueryParam("offset")); err == nil {
+			memoFind.Offset = offset
 		}
 
 		list, err := s.Store.FindMemoList(memoFind)
@@ -177,4 +184,25 @@ func (s *Server) registerMemoRoutes(g *echo.Group) {
 
 		return nil
 	})
+
+	g.GET("/memo/amount", func(c echo.Context) error {
+		userID := c.Get(getUserIDContextKey()).(int)
+		normalRowStatus := api.Normal
+		memoFind := &api.MemoFind{
+			CreatorID: &userID,
+			RowStatus: &normalRowStatus,
+		}
+
+		memoList, err := s.Store.FindMemoList(memoFind)
+		if err != nil {
+			return echo.NewHTTPError(http.StatusInternalServerError, "Failed to find memo list").SetInternal(err)
+		}
+
+		c.Response().Header().Set(echo.HeaderContentType, echo.MIMEApplicationJSONCharsetUTF8)
+		if err := json.NewEncoder(c.Response().Writer).Encode(len(memoList)); err != nil {
+			return echo.NewHTTPError(http.StatusInternalServerError, "Failed to encode memo amount").SetInternal(err)
+		}
+
+		return nil
+	})
 }

server/server.go

@@ -70,6 +70,7 @@ func NewServer(profile *profile.Profile) *Server {
 	s.registerMemoRoutes(apiGroup)
 	s.registerShortcutRoutes(apiGroup)
 	s.registerResourceRoutes(apiGroup)
+	s.registerTagRoutes(apiGroup)
 
 	return s
 }

server/tag.go

@@ -0,0 +1,51 @@
+package server
+
+import (
+	"encoding/json"
+	"memos/api"
+	"net/http"
+	"regexp"
+
+	"github.com/labstack/echo/v4"
+)
+
+func (s *Server) registerTagRoutes(g *echo.Group) {
+	g.GET("/tag", func(c echo.Context) error {
+		userID := c.Get(getUserIDContextKey()).(int)
+		contentSearch := "#"
+		memoFind := api.MemoFind{
+			CreatorID:     &userID,
+			ContentSearch: &contentSearch,
+		}
+
+		memoList, err := s.Store.FindMemoList(&memoFind)
+		if err != nil {
+			return echo.NewHTTPError(http.StatusInternalServerError, "Failed to find memo list").SetInternal(err)
+		}
+
+		tagMapSet := make(map[string]bool)
+
+		r, err := regexp.Compile("#(.+?) ")
+		if err != nil {
+			return echo.NewHTTPError(http.StatusInternalServerError, "Failed to compile regexp").SetInternal(err)
+		}
+		for _, memo := range memoList {
+			for _, rawTag := range r.FindAllString(memo.Content, -1) {
+				tag := r.ReplaceAllString(rawTag, "$1")
+				tagMapSet[tag] = true
+			}
+		}
+
+		tagList := []string{}
+		for tag := range tagMapSet {
+			tagList = append(tagList, tag)
+		}
+
+		c.Response().Header().Set(echo.HeaderContentType, echo.MIMEApplicationJSONCharsetUTF8)
+		if err := json.NewEncoder(c.Response().Writer).Encode(tagList); err != nil {
+			return echo.NewHTTPError(http.StatusInternalServerError, "Failed to encode tags response").SetInternal(err)
+		}
+
+		return nil
+	})
+}

server/webhook.go

@@ -114,7 +114,14 @@ func (s *Server) registerWebhookRoutes(g *echo.Group) {
 		}
 		tag := c.QueryParam("tag")
 		if tag != "" {
-			memoFind.Tag = &tag
+			contentSearch := tag + " "
+			memoFind.ContentSearch = &contentSearch
+		}
+		if limit, err := strconv.Atoi(c.QueryParam("limit")); err == nil {
+			memoFind.Limit = limit
+		}
+		if offset, err := strconv.Atoi(c.QueryParam("offset")); err == nil {
+			memoFind.Offset = offset
 		}
 
 		list, err := s.Store.FindMemoList(memoFind)

store/memo.go

@@ -209,10 +209,20 @@ func findMemoRawList(db *sql.DB, find *api.MemoFind) ([]*memoRaw, error) {
 	if v := find.Pinned; v != nil {
 		where = append(where, "id in (SELECT memo_id FROM memo_organizer WHERE pinned = 1 AND user_id = memo.creator_id )")
 	}
-	if v := find.Tag; v != nil {
-		where, args = append(where, "content LIKE ?"), append(args, "%#"+*v+" %")
+	if v := find.ContentSearch; v != nil {
+		where, args = append(where, "content LIKE ?"), append(args, "%"+*v+"%")
 	}
 
+	pagination := ""
+	if find.Limit > 0 {
+		pagination = fmt.Sprintf("%s LIMIT %d", pagination, find.Limit)
+		if find.Offset > 0 {
+			pagination = fmt.Sprintf("%s OFFSET %d", pagination, find.Offset)
+		}
+	}
+
+	println(pagination)
+
 	rows, err := db.Query(`
 		SELECT
 			id,
@@ -223,7 +233,7 @@ func findMemoRawList(db *sql.DB, find *api.MemoFind) ([]*memoRaw, error) {
 			row_status
 		FROM memo
 		WHERE `+strings.Join(where, " AND ")+`
-		ORDER BY created_ts DESC`,
+		ORDER BY created_ts DESC`+pagination,
 		args...,
 	)
 	if err != nil {