From b27e9fb0dffc73b8ce8ea8ba1599ca716164100e Mon Sep 17 00:00:00 2001
From: EnumDev <enumdev@enumerated.dev>
Date: Wed, 29 Oct 2025 18:02:42 +0200
Subject: [PATCH] Show optionally dependant packages in readable info

---
 src/bpmlib/databases.go    | 33 +++++++++++++++++++++++++++++
 src/bpmlib/dependencies.go | 43 ++++++++++++++++++++++++++++++++++++++
 src/bpmlib/packages.go     |  4 ++++
 3 files changed, 80 insertions(+)

diff --git a/src/bpmlib/databases.go b/src/bpmlib/databases.go
index 5f64efa..c27e278 100644
--- a/src/bpmlib/databases.go
+++ b/src/bpmlib/databases.go
@@ -300,6 +300,35 @@ func (entry *BPMDatabaseEntry) GetEntryDependants() (dependants []string) {
 	return dependants
 }
 
+func (entry *BPMDatabaseEntry) GetEntryOptionalDependants() (dependants []string) {
+	dependantsMap := make(map[string][]string)
+	for _, db := range BPMDatabases {
+		for _, e := range db.Entries {
+			if slices.Contains(e.Info.OptionalDepends, entry.Info.Name) {
+				dependantsMap[e.Info.Name] = append(dependantsMap[e.Info.Name], e.Database.Name)
+			}
+		}
+	}
+
+	// Get keys
+	keySlice := slices.Collect(maps.Keys(dependantsMap))
+	slices.Sort(keySlice)
+
+	// Add all dependant entries to slice in alphabetical order
+	for _, entryName := range keySlice {
+		dbs := dependantsMap[entryName]
+		if len(dbs) > 1 {
+			for _, db := range dbs {
+				dependants = append(dependants, db+"/"+entryName)
+			}
+		} else {
+			dependants = append(dependants, entryName)
+		}
+	}
+
+	return dependants
+}
+
 func (entry *BPMDatabaseEntry) CreateReadableInfo(rootDir string, humanReadableSize bool) string {
 	ret := make([]string, 0)
 	appendArray := func(label string, array []string, sort bool) {
@@ -339,6 +368,10 @@ func (entry *BPMDatabaseEntry) CreateReadableInfo(rootDir string, humanReadableS
 	if len(dependants) > 0 {
 		appendArray("Dependant packages", dependants, false)
 	}
+	optionalDependants := entry.GetEntryOptionalDependants()
+	if len(optionalDependants) > 0 {
+		appendArray("Optionally dependant packages", optionalDependants, false)
+	}
 	appendArray("Conflicting packages", entry.Info.Conflicts, true)
 	appendArray("Provided packages", entry.Info.Provides, true)
 	appendArray("Replaces packages", entry.Info.Replaces, true)
diff --git a/src/bpmlib/dependencies.go b/src/bpmlib/dependencies.go
index 241694a..5e623c2 100644
--- a/src/bpmlib/dependencies.go
+++ b/src/bpmlib/dependencies.go
@@ -217,3 +217,46 @@ func (pkgInfo *PackageInfo) GetPackageDependants(rootDir string) (dependants []s
 
 	return dependants
 }
+
+func (pkgInfo *PackageInfo) GetPackageOptionalDependants(rootDir string) (dependants []string) {
+	// Get installed package names
+	pkgs, err := GetInstalledPackages(rootDir)
+	if err != nil {
+		return nil
+	}
+
+	// Loop through all installed packages
+	for _, installedPkgName := range pkgs {
+		// Get installed BPM package
+		installedPkg := GetPackage(installedPkgName, rootDir)
+		if installedPkg == nil {
+			return nil
+		}
+
+		// Skip iteration if comparing the same packages
+		if installedPkg.PkgInfo.Name == pkgInfo.Name {
+			continue
+		}
+
+		// Add installed package to list if its optional dependencies include pkgName
+		if slices.ContainsFunc(installedPkg.PkgInfo.OptionalDepends, func(n string) bool {
+			return n == pkgInfo.Name
+		}) {
+			dependants = append(dependants, installedPkgName)
+			continue
+		}
+
+		// Loop through each virtual package
+		for _, vpkg := range pkgInfo.Provides {
+			// Add installed package to list if its optional dependencies contain a provided virtual package
+			if slices.ContainsFunc(installedPkg.PkgInfo.OptionalDepends, func(n string) bool {
+				return n == vpkg
+			}) {
+				dependants = append(dependants, installedPkgName)
+				break
+			}
+		}
+	}
+
+	return dependants
+}
diff --git a/src/bpmlib/packages.go b/src/bpmlib/packages.go
index be79da0..654d801 100644
--- a/src/bpmlib/packages.go
+++ b/src/bpmlib/packages.go
@@ -545,6 +545,10 @@ func (bpmpkg *BPMPackage) CreateReadableInfo(rootDir string, humanReadableSize b
 	if len(dependants) > 0 {
 		appendArray("Dependant packages", dependants)
 	}
+	optionalDependants := bpmpkg.PkgInfo.GetPackageOptionalDependants(rootDir)
+	if len(optionalDependants) > 0 {
+		appendArray("Optionally dependant packages", optionalDependants)
+	}
 	appendArray("Conflicting packages", bpmpkg.PkgInfo.Conflicts)
 	appendArray("Provided packages", bpmpkg.PkgInfo.Provides)
 	appendArray("Replaces packages", bpmpkg.PkgInfo.Replaces)