From c46c95d08d7bfb46075c5b88ed67552ac58941b6 Mon Sep 17 00:00:00 2001
From: Ross Keenan <rossk29@gmail.com>
Date: Fri, 3 Sep 2021 17:45:02 +0200
Subject: [PATCH] feat(WriteBCToFile): :sparkles: New Command: Write
 Breadcrumbs to current file

---
 .vscode/settings.json  |  3 +-
 src/main.ts            | 25 ++++++++++++++++
 src/sharedFunctions.ts | 65 ++++++++++++++++++++++++++++++++++++++++--
 3 files changed, 90 insertions(+), 3 deletions(-)

diff --git a/.vscode/settings.json b/.vscode/settings.json
index 61e96040..7f0211c3 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -8,6 +8,7 @@
         "Vis View",
         "getFieldValues",
         "Path View",
-        "Hierarchy Note"
+        "Hierarchy Note",
+        "WriteBCToFile"
     ]
 }
\ No newline at end of file
diff --git a/src/main.ts b/src/main.ts
index 838378a1..dc355597 100644
--- a/src/main.ts
+++ b/src/main.ts
@@ -35,12 +35,15 @@ import {
   getObsMetadataCache,
   mergeGs,
   removeDuplicates,
+  writeBCToFile,
+
 } from "src/sharedFunctions";
 import StatsView from "src/StatsView";
 import { VisModal } from "src/VisModal";
 import TrailGrid from "./Components/TrailGrid.svelte";
 import TrailPath from "./Components/TrailPath.svelte";
 
+
 const DEFAULT_SETTINGS: BreadcrumbsSettings = {
   userHierarchies: [],
   indexNote: [""],
@@ -86,6 +89,17 @@ declare module "obsidian" {
       plugins: {
         dataview: { api: any };
         juggl: any;
+        metaedit: {
+          api: {
+            getAutopropFunction: () => any;
+            getUpdateFunction: () => any;
+            getFileFromTFileOrPath: () => any;
+            getGetPropertyValueFunction: () => any;
+            getGetFilesWithPropertyFunction: () => any;
+            getCreateYamlPropertyFunction: () => any;
+            getGetPropertiesInFile: () => any;
+          }
+        }
       };
     };
   }
@@ -107,6 +121,7 @@ export default class BreadcrumbsPlugin extends Plugin {
       this.activeLeafChangeEventRef = this.app.workspace.on(
         "active-leaf-change",
         async () => {
+
           if (this.settings.refreshIndexOnActiveLeafChange) {
             // refreshIndex does everything in one
             await this.refreshIndex();
@@ -299,6 +314,16 @@ export default class BreadcrumbsPlugin extends Plugin {
       callback: async () => await this.refreshIndex(),
     });
 
+    this.addCommand({
+      id: "Write-Breadcrumbs-to-Current-File",
+      name: "Write Breadcrumbs to Current File",
+      callback: () => {
+        const currFile = this.app.workspace.getActiveFile();
+        writeBCToFile(this.app, this, this.currGraphs, currFile)
+      },
+    });
+
+
     this.addRibbonIcon("dice", "Breadcrumbs Visualisation", () =>
       new VisModal(this.app, this).open()
     );
diff --git a/src/sharedFunctions.ts b/src/sharedFunctions.ts
index 728b48b8..2130a5db 100644
--- a/src/sharedFunctions.ts
+++ b/src/sharedFunctions.ts
@@ -7,10 +7,11 @@ import {
   Notice,
   Pos,
   TFile,
-  WorkspaceLeaf,
+  WorkspaceLeaf
 } from "obsidian";
 import { DIRECTIONS, dropHeaderOrAlias, splitLinksRegex } from "src/constants";
 import type {
+  BCIndex,
   BreadcrumbsSettings,
   Directions,
   dvFrontmatterCache,
@@ -18,11 +19,13 @@ import type {
   HierarchyFields,
   HierarchyGraphs,
   JugglLink,
-  userHierarchy,
+  userHierarchy
 } from "src/interfaces";
 import type BreadcrumbsPlugin from "src/main";
 import type MatrixView from "src/MatrixView";
 
+
+
 export function sum(arr: number[]): number {
   return arr.reduce((a, b) => a + b);
 }
@@ -602,3 +605,61 @@ export function hierToStr(hier: userHierarchy) {
 export function removeDuplicates<T>(arr: T[]) {
   return [...new Set(arr)];
 }
+
+export const createOrUpdateYaml = async (
+  key: string,
+  value: string,
+  file: TFile,
+  frontmatter: FrontMatterCache | undefined,
+  api: { [fun: string]: (...args: any) => any }
+) => {
+  if (!api) {
+    new Notice('Metaedit must be enabled for this function to work');
+    return
+  }
+
+  let valueStr = value.toString()
+
+  if (!frontmatter || frontmatter[key] === undefined) {
+    await api.createYamlProperty(key, `['${valueStr}']`, file);
+  } else if ([...[frontmatter[key]]].flat(3).includes(valueStr)) {
+    return
+  }
+  else {
+    const oldValueFlat: string[] = [...[frontmatter[key]]].flat(4);
+    const newValue = [...oldValueFlat, valueStr].map(val => `'${val}'`);
+    await api.update(key, `[${newValue.join(", ")}]`, file);
+  }
+
+}
+
+export const writeBCToFile = (app: App, plugin: BreadcrumbsPlugin, currGraphs: BCIndex, file: TFile) => {
+
+  const frontmatter = app.metadataCache.getFileCache(file)?.frontmatter;
+  const { api } = app.plugins.plugins.metaedit
+
+  currGraphs.hierGs.forEach(hier => {
+    DIRECTIONS.forEach(dir => {
+      let oppDir: Directions;
+      if (dir === 'up') oppDir = 'down';
+      if (dir === 'down') oppDir = 'up';
+      if (dir === 'same') oppDir = 'same';
+
+      Object.keys(hier[dir]).forEach(field => {
+
+
+        const fieldG = hier[dir][field];
+        const succs = fieldG.predecessors(file.basename) as string[];
+
+        succs.forEach(succ => {
+          const { fieldName } = fieldG.node(succ);
+          const currHier = plugin.settings.userHierarchies.filter(hier => hier[dir].includes(fieldName))[0]
+          let oppField: string = currHier[oppDir][0];
+          if (!oppField) oppField = `<Reverse>${fieldName}`
+
+          createOrUpdateYaml(oppField, succ, file, frontmatter, api)
+        })
+      })
+    })
+  })
+}
\ No newline at end of file