From 112ad5feb56b8a40b4bf6e8fb40e7a0177182126 Mon Sep 17 00:00:00 2001
From: Daniel Silk <dsilk@linz.govt.nz>
Date: Mon, 27 Sep 2021 13:29:32 +1300
Subject: [PATCH] revert: reinstate stac_extensions schema definitions

ref: eb3d4943b34e8e7e000bb5a407d72a536c9ea22d (commit being reverted)
discussion: https://github.com/linz/stac/pull/60#discussion_r715257218
upstream issue: https://github.com/stac-extensions/template/issues/10
---
 extensions/camera/schema.json   | 15 +++++++++++++++
 extensions/linz/schema.json     | 15 +++++++++++++++
 extensions/quality/schema.json  | 12 ++++++++++++
 extensions/template/schema.json | 18 ++++++++++++++++++
 4 files changed, 60 insertions(+)

diff --git a/extensions/camera/schema.json b/extensions/camera/schema.json
index c5c39457..81f3d304 100644
--- a/extensions/camera/schema.json
+++ b/extensions/camera/schema.json
@@ -21,9 +21,24 @@
           }
         }
       }
+    },
+    {
+      "$ref": "#/definitions/stac_extensions"
     }
   ],
   "definitions": {
+    "stac_extensions": {
+      "type": "object",
+      "required": ["stac_extensions"],
+      "properties": {
+        "stac_extensions": {
+          "type": "array",
+          "contains": {
+            "const": "https://linz.github.io/stac/_STAC_VERSION_/camera/schema.json"
+          }
+        }
+      }
+    },
     "fields": {
       "type": "object",
       "properties": {
diff --git a/extensions/linz/schema.json b/extensions/linz/schema.json
index f35d73ae..c6ef6df2 100644
--- a/extensions/linz/schema.json
+++ b/extensions/linz/schema.json
@@ -15,9 +15,24 @@
     },
     {
       "$ref": "#/definitions/linz"
+    },
+    {
+      "$ref": "#/definitions/stac_extensions"
     }
   ],
   "definitions": {
+    "stac_extensions": {
+      "type": "object",
+      "required": ["stac_extensions"],
+      "properties": {
+        "stac_extensions": {
+          "type": "array",
+          "contains": {
+            "const": "https://linz.github.io/stac/_STAC_VERSION_/linz/schema.json"
+          }
+        }
+      }
+    },
     "linz": {
       "type": "object",
       "required": ["title", "linz:security_classification", "linz:created", "linz:updated"],
diff --git a/extensions/quality/schema.json b/extensions/quality/schema.json
index 20247cff..312888ce 100644
--- a/extensions/quality/schema.json
+++ b/extensions/quality/schema.json
@@ -11,6 +11,18 @@
     }
   ],
   "definitions": {
+    "stac_extensions": {
+      "type": "object",
+      "required": ["stac_extensions"],
+      "properties": {
+        "stac_extensions": {
+          "type": "array",
+          "contains": {
+            "const": "https://linz.github.io/stac/_STAC_VERSION_/quality/schema.json"
+          }
+        }
+      }
+    },
     "quality": {
       "type": "object",
       "properties": {
diff --git a/extensions/template/schema.json b/extensions/template/schema.json
index 5a25180d..c1a9ef9a 100644
--- a/extensions/template/schema.json
+++ b/extensions/template/schema.json
@@ -32,6 +32,9 @@
               }
             }
           }
+        },
+        {
+          "$ref": "#/definitions/stac_extensions"
         }
       ]
     },
@@ -59,6 +62,9 @@
             }
           }
         },
+        {
+          "$ref": "#/definitions/stac_extensions"
+        },
         {
           "$comment": "Remove this object if this extension does not define top-level fields for Collections.",
           "$ref": "#/definitions/fields"
@@ -67,6 +73,18 @@
     }
   ],
   "definitions": {
+    "stac_extensions": {
+      "type": "object",
+      "required": ["stac_extensions"],
+      "properties": {
+        "stac_extensions": {
+          "type": "array",
+          "contains": {
+            "const": "https://linz.github.io/stac/_STAC_VERSION_/template/schema.json"
+          }
+        }
+      }
+    },
     "fields": {
       "$comment": "Add your new fields here. Don't require them here, do that above in the item schema.",
       "type": "object",