ingredient/info: Add Fetcher concept

internal/wisski/ingredient/fetcher.go

@@ -0,0 +1,48 @@
+package ingredient
+
+import (
+	"time"
+
+	"github.com/FAU-CDI/wisski-distillery/internal/models"
+	"github.com/FAU-CDI/wisski-distillery/internal/wisski/ingredient/php/phpserver"
+)
+
+// Fetcher is an ingredient with a fetch method
+type Fetcher interface {
+	Ingredient
+
+	// Fetch fetchs information with the given information and writes it into info.
+	// Distinct Fetchers must write into distinct fields.
+	Fetch(flags FetchFlags, info *Information) error
+}
+
+// FetchFlags specifies what information to fetch
+type FetchFlags struct {
+	Quick  bool
+	Server *phpserver.Server
+}
+
+// Information represents fetched information about a WissKI
+type Information struct {
+	Time time.Time // Time this info was built
+
+	// Generic Information
+	Slug string // slug
+	URL  string // complete URL, including http(s)
+
+	Locked bool // Is this instance currently locked?
+
+	// Information about the running instance
+	Running     bool
+	LastRebuild time.Time
+	LastUpdate  time.Time
+	LastCron    time.Time
+
+	// List of backups made
+	Snapshots []models.Export
+
+	// WissKI content information
+	NoPrefixes   bool              // TODO: Move this into the database
+	Prefixes     []string          // list of prefixes
+	Pathbuilders map[string]string // all the pathbuilders
+}