feat: Add configuration for ordering repo list

Now it is possible to order the list by; unordered, alphabetical and
last commit both ascendent and descendent.

3 files changed, 84 insertions, 1 deletions

diff --git a/config.example.scfg b/config.example.scfg
index 59a04ad..3ba8959 100644
--- a/config.example.scfg
+++ b/config.example.scfg
@@ -10,6 +10,14 @@ syntax-highlight monokailight
 passphrase $2a$14$VnB/ZcB1DUDkMnosRA6Y7.dj8h5eroslDxTeXlLwfQX/x86mh6WAq
 aes-key 8XHptZxSWCGs1m7QzztX5zNQ7D9NiQevVX0DaUTNMbDpRwFzoJiB0U7K6O/kqIt01jJVgzBUfiR8ES46ZLLb4w==
 
+# order of the list of repository, values:
+# unordered
+# alphabetical-asc
+# alphabetical-desc
+# lastcommit-asc
+# lastcommit-desc
+order-by lastcommit-asc
+
 # repository section is order dependent where the first repository has priority
 # in case of conflict. Repository has also priority over scan. The order
 # between scan and repository is irrelevant which means that all repository
diff --git a/pkg/config/config.go b/pkg/config/config.go
index 1ad5108..60a3444 100644
--- a/pkg/config/config.go
+++ b/pkg/config/config.go
@@ -4,6 +4,7 @@ import (
 	"errors"
 	"fmt"
 	"io"
+	"log/slog"
 	"os"
 	"path"
 	"path/filepath"
@@ -19,6 +20,16 @@ var (
 	ErrInvalidProperty = errors.New("Invalid property")
 )
 
+type OrderBy int
+
+const (
+	Unordered OrderBy = iota
+	AlphabeticalAsc
+	AlphabeticalDesc
+	LastCommitAsc
+	LastCommitDesc
+)
+
 type (
 
 	// scan represents piece of the scan from the configuration file.
@@ -36,6 +47,7 @@ type (
 		Passphrase      string
 		SyntaxHighlight string
 		AESKey          string
+		OrderBy         string
 		Repositories    []*GitRepositoryConfiguration
 	}
 
@@ -58,6 +70,7 @@ type (
 		passphrase      []byte
 		aesKey          []byte
 		syntaxHighlight string
+		orderBy         OrderBy
 		repositories    []*GitRepositoryConfiguration
 	}
 )
@@ -80,6 +93,7 @@ func LoadConfigurationRepository(configPath string) (*ConfigurationRepository, e
 		repositories:    config.Repositories,
 		rootReadme:      config.RootReadme,
 		syntaxHighlight: config.SyntaxHighlight,
+		orderBy:         parseOrderBy(config.OrderBy),
 	}
 
 	for _, scan := range config.Scans {
@@ -99,6 +113,10 @@ func (c *ConfigurationRepository) GetRootReadme() string {
 	return c.rootReadme
 }
 
+func (c *ConfigurationRepository) GetOrderBy() OrderBy {
+	return c.orderBy
+}
+
 func (c *ConfigurationRepository) GetSyntaxHighlight() string {
 	return c.syntaxHighlight
 }
@@ -211,6 +229,11 @@ func parse(r io.Reader) (*configuration, error) {
 		return nil, err
 	}
 
+	err = setOrderby(block, &config.OrderBy)
+	if err != nil {
+		return nil, err
+	}
+
 	err = setRepositories(block, &config.Repositories)
 	if err != nil {
 		return nil, err
@@ -316,6 +339,11 @@ func setSyntaxHighlight(block scfg.Block, listenAddr *string) error {
 	return setString(scanDir, listenAddr)
 }
 
+func setOrderby(block scfg.Block, orderBy *string) error {
+	scanDir := block.Get("order-by")
+	return setString(scanDir, orderBy)
+}
+
 func setListenAddr(block scfg.Block, listenAddr *string) error {
 	scanDir := block.Get("listen-addr")
 	return setString(scanDir, listenAddr)
@@ -363,3 +391,24 @@ func setString(dir *scfg.Directive, field *string) error {
 	}
 	return nil
 }
+
+func parseOrderBy(s string) OrderBy {
+	switch s {
+	case "":
+		return LastCommitAsc
+	case "unordered":
+		return Unordered
+	case "alphabetical-asc":
+		return AlphabeticalAsc
+	case "alphabetical-desc":
+		return AlphabeticalDesc
+	case "lastcommit-asc":
+		return LastCommitAsc
+	case "lastcommit-desc":
+		return LastCommitDesc
+	default:
+		slog.Warn("Invalid order-by using default unordered")
+		return LastCommitAsc
+
+	}
+}
diff --git a/pkg/handler/git/handler.go b/pkg/handler/git/handler.go
index 436d364..9c7ba5b 100644
--- a/pkg/handler/git/handler.go
+++ b/pkg/handler/git/handler.go
@@ -9,8 +9,10 @@ import (
 	"net/http"
 	"os"
 	"path/filepath"
+	"sort"
 	"strings"
 
+	"git.gabrielgio.me/cerrado/pkg/config"
 	"git.gabrielgio.me/cerrado/pkg/ext"
 	"git.gabrielgio.me/cerrado/pkg/service"
 	"git.gabrielgio.me/cerrado/pkg/u"
@@ -34,6 +36,7 @@ type (
 	configurationRepository interface {
 		GetRootReadme() string
 		GetSyntaxHighlight() string
+		GetOrderBy() config.OrderBy
 	}
 )
 
@@ -79,7 +82,7 @@ func (g *GitHandler) List(w http.ResponseWriter, r *http.Request) error {
 	bs = markdown.Render(doc, renderer)
 
 	gitList := &templates.GitListPage{
-		Respositories: repos,
+		Respositories: orderBy(repos, g.config.GetOrderBy()),
 		About:         bs,
 	}
 	templates.WritePageTemplate(w, gitList, r.Context())
@@ -390,3 +393,26 @@ func GetLexers(filename string) chroma.Lexer {
 func isPublic(r *service.Repository) bool {
 	return r.Public
 }
+
+func orderBy(repos []*service.Repository, order config.OrderBy) []*service.Repository {
+	switch order {
+	case config.AlphabeticalAsc:
+		sort.Slice(repos, func(i, j int) bool {
+			return repos[i].Name < repos[j].Name
+		})
+	case config.AlphabeticalDesc:
+		sort.Slice(repos, func(i, j int) bool {
+			return repos[i].Name > repos[j].Name
+		})
+	case config.LastCommitAsc:
+		sort.Slice(repos, func(i, j int) bool {
+			return repos[i].LastCommit.Committer.When.Before(repos[j].LastCommit.Committer.When)
+		})
+	case config.LastCommitDesc:
+		sort.Slice(repos, func(i, j int) bool {
+			return repos[i].LastCommit.Committer.When.After(repos[j].LastCommit.Committer.When)
+		})
+	}
+
+	return repos
+}