internal: move packages under this directory (#5836)

* Rename pkg -> internal

* Rename routes -> route

* Move route -> internal/route

* Rename models -> db

* Move db -> internal/db

* Fix route2 -> route

* Move cmd -> internal/cmd

* Bump version

internal/route/api/v1/user/follower.go

@@ -0,0 +1,114 @@
+// Copyright 2015 The Gogs Authors. All rights reserved.
+// Use of this source code is governed by a MIT-style
+// license that can be found in the LICENSE file.
+
+package user
+
+import (
+	api "github.com/gogs/go-gogs-client"
+
+	"gogs.io/gogs/internal/context"
+	"gogs.io/gogs/internal/db"
+)
+
+func responseApiUsers(c *context.APIContext, users []*db.User) {
+	apiUsers := make([]*api.User, len(users))
+	for i := range users {
+		apiUsers[i] = users[i].APIFormat()
+	}
+	c.JSONSuccess(&apiUsers)
+}
+
+func listUserFollowers(c *context.APIContext, u *db.User) {
+	users, err := u.GetFollowers(c.QueryInt("page"))
+	if err != nil {
+		c.ServerError("GetUserFollowers", err)
+		return
+	}
+	responseApiUsers(c, users)
+}
+
+func ListMyFollowers(c *context.APIContext) {
+	listUserFollowers(c, c.User)
+}
+
+func ListFollowers(c *context.APIContext) {
+	u := GetUserByParams(c)
+	if c.Written() {
+		return
+	}
+	listUserFollowers(c, u)
+}
+
+func listUserFollowing(c *context.APIContext, u *db.User) {
+	users, err := u.GetFollowing(c.QueryInt("page"))
+	if err != nil {
+		c.ServerError("GetFollowing", err)
+		return
+	}
+	responseApiUsers(c, users)
+}
+
+func ListMyFollowing(c *context.APIContext) {
+	listUserFollowing(c, c.User)
+}
+
+func ListFollowing(c *context.APIContext) {
+	u := GetUserByParams(c)
+	if c.Written() {
+		return
+	}
+	listUserFollowing(c, u)
+}
+
+func checkUserFollowing(c *context.APIContext, u *db.User, followID int64) {
+	if u.IsFollowing(followID) {
+		c.NoContent()
+	} else {
+		c.NotFound()
+	}
+}
+
+func CheckMyFollowing(c *context.APIContext) {
+	target := GetUserByParams(c)
+	if c.Written() {
+		return
+	}
+	checkUserFollowing(c, c.User, target.ID)
+}
+
+func CheckFollowing(c *context.APIContext) {
+	u := GetUserByParams(c)
+	if c.Written() {
+		return
+	}
+	target := GetUserByParamsName(c, ":target")
+	if c.Written() {
+		return
+	}
+	checkUserFollowing(c, u, target.ID)
+}
+
+func Follow(c *context.APIContext) {
+	target := GetUserByParams(c)
+	if c.Written() {
+		return
+	}
+	if err := db.FollowUser(c.User.ID, target.ID); err != nil {
+		c.ServerError("FollowUser", err)
+		return
+	}
+	c.NoContent()
+}
+
+func Unfollow(c *context.APIContext) {
+	target := GetUserByParams(c)
+	if c.Written() {
+		return
+	}
+	if err := db.UnfollowUser(c.User.ID, target.ID); err != nil {
+		c.ServerError("UnfollowUser", err)
+		return
+	}
+	c.NoContent()
+}