From 61cd9eeb24dd26717af7c22230e5a44b94471294 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Joan=20L=C3=B3pez=20de=20la=20Franca=20Beltran?=
 <5459617+joanlopez@users.noreply.github.com>
Date: Mon, 12 Dec 2022 15:47:19 +0100
Subject: [PATCH] Kinds: Generate JSON report (#59742)

* Kinds: Generate JSON report

* Kinds: Add Validate/Write support for JSON report

* Kinds: Report format

* Kinds: Report new line

* Kinds: Use kindsys.SomeKindMeta to generate the report

* Move kinds report generation to the end

* Re-structure kinds report JSON output

* Make prettier to ignore kinds json report

* Minor on kinds report generation

* Fix toggles_gen test
---
 .prettierignore     |  3 ++
 Makefile            |  1 +
 kinds/report.go     | 97 +++++++++++++++++++++++++++++++++++++++++++++
 kinds/report.json   | 54 +++++++++++++++++++++++++
 pkg/kindsys/kind.go |  4 ++
 pkg/kindsys/load.go |  9 ++++-
 6 files changed, 166 insertions(+), 2 deletions(-)
 create mode 100644 kinds/report.go
 create mode 100644 kinds/report.json

diff --git a/.prettierignore b/.prettierignore
index a54ca37d5e4..cc9c39938ad 100644
--- a/.prettierignore
+++ b/.prettierignore
@@ -30,3 +30,6 @@ theme.dark.generated.json
 public/api-spec.json
 public/api-merged.json
 public/openapi3.json
+
+# Generated Kinds report
+kinds/report.json
diff --git a/Makefile b/Makefile
index 5c3cf3f5256..aea67a0639e 100644
--- a/Makefile
+++ b/Makefile
@@ -70,6 +70,7 @@ gen-cue: ## Do all CUE/Thema code generation
 	go generate ./kinds/gen.go
 	go generate ./pkg/framework/coremodel
 	go generate ./public/app/plugins/gen.go
+	go generate ./kinds/report.go
 
 gen-go: $(WIRE) gen-cue
 	@echo "generate go files"
diff --git a/kinds/report.go b/kinds/report.go
new file mode 100644
index 00000000000..993c31331e6
--- /dev/null
+++ b/kinds/report.go
@@ -0,0 +1,97 @@
+//go:build ignore
+// +build ignore
+
+//go:generate go run report.go
+
+package main
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"os"
+	"path/filepath"
+
+	"github.com/grafana/codejen"
+	"github.com/grafana/grafana/pkg/kindsys"
+	"github.com/grafana/grafana/pkg/registry/corekind"
+)
+
+const reportFileName = "report.json"
+
+func main() {
+	report := buildKindStateReport()
+	reportJSON := elsedie(json.MarshalIndent(report, "", "  "))("error generating json output")
+
+	path := filepath.Join(kindsys.DeclParentPath, reportFileName)
+	file := codejen.NewFile(path, reportJSON, reportJenny{})
+	filesystem := elsedie(file.ToFS())("error building in-memory file system")
+
+	cwd := elsedie(os.Getwd())("error getting working directory")
+	groot := filepath.Dir(cwd)
+
+	if _, set := os.LookupEnv("CODEGEN_VERIFY"); set {
+		if err := filesystem.Verify(context.Background(), groot); err != nil {
+			die(fmt.Errorf("generated code is out of sync with inputs:\n%s\nrun `make gen-cue` to regenerate", err))
+		}
+	} else if err := filesystem.Write(context.Background(), groot); err != nil {
+		die(fmt.Errorf("error while writing generated code to disk:\n%s", err))
+	}
+}
+
+type KindStateReport struct {
+	Core       []kindsys.CoreStructuredProperties `json:"core"`
+	Raw        []kindsys.RawProperties            `json:"raw"`
+	Composable []kindsys.ComposableProperties     `json:"composable"`
+}
+
+func emptyKindStateReport() KindStateReport {
+	return KindStateReport{
+		Core:       make([]kindsys.CoreStructuredProperties, 0),
+		Raw:        make([]kindsys.RawProperties, 0),
+		Composable: make([]kindsys.ComposableProperties, 0),
+	}
+}
+
+func buildKindStateReport() KindStateReport {
+	r := emptyKindStateReport()
+	b := corekind.NewBase(nil)
+
+	for _, k := range b.All() {
+		switch props := k.Props().(type) {
+		case kindsys.CoreStructuredProperties:
+			r.Core = append(r.Core, props)
+		case kindsys.RawProperties:
+			r.Raw = append(r.Raw, props)
+		case kindsys.ComposableProperties:
+			r.Composable = append(r.Composable, props)
+		}
+	}
+
+	return r
+}
+
+type reportJenny struct{}
+
+func (reportJenny) JennyName() string {
+	return "ReportJenny"
+}
+
+func elsedie[T any](t T, err error) func(msg string) T {
+	if err != nil {
+		return func(msg string) T {
+			fmt.Fprintf(os.Stderr, "%s: %s\n", msg, err)
+			os.Exit(1)
+			return t
+		}
+	}
+
+	return func(msg string) T {
+		return t
+	}
+}
+
+func die(err error) {
+	fmt.Fprint(os.Stderr, err, "\n")
+	os.Exit(1)
+}
diff --git a/kinds/report.json b/kinds/report.json
new file mode 100644
index 00000000000..9dd5449d52f
--- /dev/null
+++ b/kinds/report.json
@@ -0,0 +1,54 @@
+{
+  "core": [
+    {
+      "name": "Dashboard",
+      "pluralName": "Dashboards",
+      "machineName": "dashboard",
+      "pluralMachineName": "dashboards",
+      "lineageIsGroup": false,
+      "maturity": "merged",
+      "currentVersion": [
+        0,
+        0
+      ]
+    },
+    {
+      "name": "Playlist",
+      "pluralName": "Playlists",
+      "machineName": "playlist",
+      "pluralMachineName": "playlists",
+      "lineageIsGroup": false,
+      "maturity": "merged",
+      "currentVersion": [
+        0,
+        0
+      ]
+    },
+    {
+      "name": "Team",
+      "pluralName": "Teams",
+      "machineName": "team",
+      "pluralMachineName": "teams",
+      "lineageIsGroup": false,
+      "maturity": "merged",
+      "currentVersion": [
+        0,
+        0
+      ]
+    }
+  ],
+  "raw": [
+    {
+      "name": "SVG",
+      "pluralName": "SVGs",
+      "machineName": "svg",
+      "pluralMachineName": "svgs",
+      "lineageIsGroup": false,
+      "maturity": "merged",
+      "extensions": [
+        "svg"
+      ]
+    }
+  ],
+  "composable": []
+}
\ No newline at end of file
diff --git a/pkg/kindsys/kind.go b/pkg/kindsys/kind.go
index 2add53e98ad..a64a66c0f3a 100644
--- a/pkg/kindsys/kind.go
+++ b/pkg/kindsys/kind.go
@@ -41,6 +41,10 @@ func (m Maturity) Less(om Maturity) bool {
 	return maturityIdx(m) < maturityIdx(om)
 }
 
+func (m Maturity) String() string {
+	return string(m)
+}
+
 // Interface describes a Grafana kind object: a Go representation of the definition of
 // one of Grafana's categories of kinds.
 type Interface interface {
diff --git a/pkg/kindsys/load.go b/pkg/kindsys/load.go
index 710cb425b49..f250354758d 100644
--- a/pkg/kindsys/load.go
+++ b/pkg/kindsys/load.go
@@ -12,14 +12,19 @@ import (
 	"github.com/grafana/thema"
 )
 
+// DeclParentPath is the path, relative to the repository root, where
+// each child directory is expected to contain directories with .cue files,
+// declaring one kind.
+var DeclParentPath = "kinds"
+
 // CoreStructuredDeclParentPath is the path, relative to the repository root, where
 // each child directory is expected to contain .cue files declaring one
 // CoreStructured kind.
-var CoreStructuredDeclParentPath = filepath.Join("kinds", "structured")
+var CoreStructuredDeclParentPath = filepath.Join(DeclParentPath, "structured")
 
 // RawDeclParentPath is the path, relative to the repository root, where each child
 // directory is expected to contain .cue files declaring one Raw kind.
-var RawDeclParentPath = filepath.Join("kinds", "raw")
+var RawDeclParentPath = filepath.Join(DeclParentPath, "raw")
 
 // GoCoreKindParentPath is the path, relative to the repository root, to the directory
 // containing one directory per kind, full of generated Go kind output: types and bindings.