From 9b04f9f7236563e1bf05711f6c82bb896327c434 Mon Sep 17 00:00:00 2001
From: Arthur Zamarin <arthurzam@gentoo.org>
Date: Fri, 2 Aug 2024 16:02:12 +0300
Subject: package/overview: mark default on useflags with +

Resolves: https://github.com/gentoo/soko/issues/29
Closes: https://bugs.gentoo.org/935395
Signed-off-by: Arthur Zamarin <arthurzam@gentoo.org>
---
 pkg/app/handler/packages/overview.templ |  2 +-
 pkg/app/handler/packages/utils.go       |  7 ++++++-
 pkg/models/package.go                   | 24 +++++++++++++++++-------
 3 files changed, 24 insertions(+), 9 deletions(-)

diff --git a/pkg/app/handler/packages/overview.templ b/pkg/app/handler/packages/overview.templ
index 72019aa..291fee8 100644
--- a/pkg/app/handler/packages/overview.templ
+++ b/pkg/app/handler/packages/overview.templ
@@ -140,7 +140,7 @@ templ useFlagsGroup(title string, useflags []*models.Useflag) {
 	<ul class={ "kk-useflag-container", templ.KV("kk-useflag-container-many", len(useflags) >= 10), templ.KV("kk-useflag-container-few", len(useflags) < 10) }>
 		for _, use := range useflags {
 			<li class="kk-useflag">
-				<a title={ use.Description } data-toggle="tooltip" href={ templ.URL("/useflags/" + use.Name) }>{ use.Name }</a>
+				<a title={ use.Description } data-toggle="tooltip" href={ templ.URL("/useflags/" + strings.TrimPrefix(use.Name, "+")) }>{ use.Name }</a>
 			</li>
 		}
 	</ul>
diff --git a/pkg/app/handler/packages/utils.go b/pkg/app/handler/packages/utils.go
index 7b319e0..99dbf53 100644
--- a/pkg/app/handler/packages/utils.go
+++ b/pkg/app/handler/packages/utils.go
@@ -6,6 +6,7 @@ package packages
 import (
 	"log/slog"
 	"net/http"
+	"slices"
 	"soko/pkg/database"
 	"soko/pkg/models"
 	"sort"
@@ -140,7 +141,7 @@ func getParameterValue(parameterName string, r *http.Request) string {
 // getPackageUseflags retrieves all local USE flags, global USE
 // flags and use expands for a given package
 func getPackageUseflags(gpackage *models.Package) (localUseflags []*models.Useflag, filteredGlobalUseflags []*models.Useflag, useExpands map[string][]*models.Useflag) {
-	rawUseFlags := gpackage.AllUseflags()
+	rawUseFlags, defaultOn := gpackage.AllUseflags()
 	if len(rawUseFlags) == 0 {
 		return
 	}
@@ -163,6 +164,7 @@ func getPackageUseflags(gpackage *models.Package) (localUseflags []*models.Usefl
 	var allGlobalUseflags []*models.Useflag
 	useExpands = make(map[string][]*models.Useflag)
 	for _, useflag := range tmp_useflags {
+		isDefaultOn := slices.Contains(defaultOn, useflag.Name)
 		if useflag.Scope == "global" {
 			allGlobalUseflags = append(allGlobalUseflags, useflag)
 		} else if useflag.Scope == "local" {
@@ -173,6 +175,9 @@ func getPackageUseflags(gpackage *models.Package) (localUseflags []*models.Usefl
 			useflag.Name = strings.TrimPrefix(useflag.Name, useflag.UseExpand+"_")
 			useExpands[useflag.UseExpand] = append(useExpands[useflag.UseExpand], useflag)
 		}
+		if isDefaultOn {
+			useflag.Name = "+" + useflag.Name
+		}
 	}
 
 	// Only add global useflags that are not present in the local useflags
diff --git a/pkg/models/package.go b/pkg/models/package.go
index e0a1ce3..16f1b61 100644
--- a/pkg/models/package.go
+++ b/pkg/models/package.go
@@ -145,17 +145,27 @@ func (p Package) AllBugs() []*Bug {
 	return allBugsList
 }
 
-func (p *Package) AllUseflags() []string {
-	useflags := make(map[string]struct{})
+func (p *Package) AllUseflags() (useflags []string, defaultOn []string) {
+	useflagsSet := make(map[string]struct{})
+	defaultOnSet := make(map[string]struct{})
 	for _, version := range p.Versions {
 		for _, useflag := range version.Useflags {
-			useflags[strings.TrimPrefix(useflag, "+")] = struct{}{}
+			if useflag[0] == '+' {
+				defaultOnSet[useflag[1:]] = struct{}{}
+				useflagsSet[useflag[1:]] = struct{}{}
+			} else {
+				useflagsSet[useflag] = struct{}{}
+			}
 		}
 	}
 
-	useflagsList := make([]string, 0, len(useflags))
-	for useflag := range useflags {
-		useflagsList = append(useflagsList, useflag)
+	useflags = make([]string, 0, len(useflagsSet))
+	for useflag := range useflagsSet {
+		useflags = append(useflags, useflag)
+	}
+	defaultOn = make([]string, 0, len(defaultOnSet))
+	for useflag := range defaultOnSet {
+		defaultOn = append(defaultOn, useflag)
 	}
-	return useflagsList
+	return
 }
-- 
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