From bd71ad5679ccb47b45bc36029474fff8928b19e0 Mon Sep 17 00:00:00 2001
From: comp500 <comp500@users.noreply.github.com>
Date: Thu, 13 Apr 2023 16:45:10 +0100
Subject: [PATCH] Manually replace FAPI deps with QFAPI/QSL when using Quilt
 (fixes #212)

---
 curseforge/curseforge.go | 8 ++++++++
 curseforge/install.go    | 6 ++++--
 modrinth/install.go      | 7 ++++---
 modrinth/modrinth.go     | 8 ++++++++
 4 files changed, 24 insertions(+), 5 deletions(-)

diff --git a/curseforge/curseforge.go b/curseforge/curseforge.go
index 9841e17..d832681 100644
--- a/curseforge/curseforge.go
+++ b/curseforge/curseforge.go
@@ -589,3 +589,11 @@ func (m *cfDownloadMetadata) DownloadFile() (io.ReadCloser, error) {
 	}
 	return resp.Body, nil
 }
+
+func mapDepOverride(depID uint32, isQuilt bool) uint32 {
+	if isQuilt && depID == 306612 {
+		// Transform FAPI dependencies to QFAPI/QSL dependencies when using Quilt
+		return 634179
+	}
+	return depID
+}
diff --git a/curseforge/install.go b/curseforge/install.go
index b9a292b..736720d 100644
--- a/curseforge/install.go
+++ b/curseforge/install.go
@@ -122,11 +122,13 @@ var installCmd = &cobra.Command{
 		}
 
 		if len(fileInfoData.Dependencies) > 0 {
+			isQuilt := slices.Contains(pack.GetLoaders(), "quilt")
+
 			var depsInstallable []installableDep
 			var depIDPendingQueue []uint32
 			for _, dep := range fileInfoData.Dependencies {
 				if dep.Type == dependencyTypeRequired {
-					depIDPendingQueue = append(depIDPendingQueue, dep.ModID)
+					depIDPendingQueue = append(depIDPendingQueue, mapDepOverride(dep.ModID, isQuilt))
 				}
 			}
 
@@ -190,7 +192,7 @@ var installCmd = &cobra.Command{
 
 						for _, dep := range depFileInfo.Dependencies {
 							if dep.Type == dependencyTypeRequired {
-								depIDPendingQueue = append(depIDPendingQueue, dep.ModID)
+								depIDPendingQueue = append(depIDPendingQueue, mapDepOverride(dep.ModID, isQuilt))
 							}
 						}
 
diff --git a/modrinth/install.go b/modrinth/install.go
index 7dac2a5..7520b24 100644
--- a/modrinth/install.go
+++ b/modrinth/install.go
@@ -227,6 +227,7 @@ func installVersion(project *modrinthApi.Project, version *modrinthApi.Version,
 	if len(version.Dependencies) > 0 {
 		// TODO: could get installed version IDs, and compare to install the newest - i.e. preferring pinned versions over getting absolute latest?
 		installedProjects := getInstalledProjectIDs(index)
+		isQuilt := slices.Contains(pack.GetLoaders(), "quilt")
 
 		var depMetadata []depMetadataStore
 		var depProjectIDPendingQueue []string
@@ -236,7 +237,7 @@ func installVersion(project *modrinthApi.Project, version *modrinthApi.Version,
 			// TODO: recommend optional dependencies?
 			if dep.DependencyType != nil && *dep.DependencyType == "required" {
 				if dep.ProjectID != nil {
-					depProjectIDPendingQueue = append(depProjectIDPendingQueue, *dep.ProjectID)
+					depProjectIDPendingQueue = append(depProjectIDPendingQueue, mapDepOverride(*dep.ProjectID, isQuilt))
 				}
 				if dep.VersionID != nil {
 					depVersionIDPendingQueue = append(depVersionIDPendingQueue, *dep.VersionID)
@@ -255,7 +256,7 @@ func installVersion(project *modrinthApi.Project, version *modrinthApi.Version,
 					if err == nil {
 						for _, v := range depVersions {
 							// Add project ID to queue
-							depProjectIDPendingQueue = append(depProjectIDPendingQueue, *v.ProjectID)
+							depProjectIDPendingQueue = append(depProjectIDPendingQueue, mapDepOverride(*v.ProjectID, isQuilt))
 						}
 					} else {
 						fmt.Printf("Error retrieving dependency data: %s\n", err.Error())
@@ -304,7 +305,7 @@ func installVersion(project *modrinthApi.Project, version *modrinthApi.Version,
 						// TODO: recommend optional dependencies?
 						if dep.DependencyType != nil && *dep.DependencyType == "required" {
 							if dep.ProjectID != nil {
-								depProjectIDPendingQueue = append(depProjectIDPendingQueue, *dep.ProjectID)
+								depProjectIDPendingQueue = append(depProjectIDPendingQueue, mapDepOverride(*dep.ProjectID, isQuilt))
 							}
 							if dep.VersionID != nil {
 								depVersionIDPendingQueue = append(depVersionIDPendingQueue, *dep.VersionID)
diff --git a/modrinth/modrinth.go b/modrinth/modrinth.go
index 64cb40b..45448df 100644
--- a/modrinth/modrinth.go
+++ b/modrinth/modrinth.go
@@ -426,3 +426,11 @@ func resolveVersion(project *modrinthApi.Project, version string) (*modrinthApi.
 	}
 	return nil, fmt.Errorf("unable to find version %s", version)
 }
+
+func mapDepOverride(depID string, isQuilt bool) string {
+	if isQuilt && (depID == "P7dR8mSH" || depID == "fabric-api") {
+		// Transform FAPI dependencies to QFAPI/QSL dependencies when using Quilt
+		return "qvIfYCYJ"
+	}
+	return depID
+}