feat(nvim-tree): implement everything except navigation

src/components/Nvim/NvimTree.tsx

@@ -1 +1,179 @@
-export const NvimTree = () => <div className="h-full bg-[#0000001a]">tree</div>;
+import { useApp } from "~/hooks/useApp";
+import { CHAR_HEIGHT, CHAR_WIDTH } from "../Kitty";
+import { type ReactNode, useEffect, useState } from "react";
+import { type InnerKittyProps } from "~/utils/types";
+import { type Nvim } from ".";
+
+type FileIcon = {
+  char: string;
+  color: string;
+};
+
+type File = {
+  name: string;
+} & (
+  | { type: "file" }
+  | { type: "directory"; files: Array<string>; folded: boolean }
+);
+
+const FILE_ICONS: Record<string, FileIcon> = {
+  md: {
+    char: " ",
+    color: "#89bafa",
+  },
+  asc: {
+    char: "󰷖 ",
+    color: "#f9e2af",
+  },
+  UNKNOWN: { char: "󰈚 ", color: "#f599ae" },
+};
+
+const sortFiles = (files: Array<File>) =>
+  files
+    .sort((a, b) => a.name.localeCompare(b.name))
+    .sort((a, b) =>
+      a.type === "directory" && b.type !== "directory"
+        ? -1
+        : a.type !== "directory" && b.type === "directory"
+          ? 1
+          : 0,
+    );
+
+export const NvimTree = (props: InnerKittyProps<typeof Nvim>) => {
+  const { rootManifest, activeKitty } = useApp();
+
+  const [selected, setSelected] = useState(0);
+  const [files, setFiles] = useState<Array<File>>(
+    sortFiles([
+      {
+        type: "directory",
+        name: "projects",
+        files: rootManifest.projects,
+        folded: false,
+      },
+      ...rootManifest.files.map((name) => ({ type: "file" as const, name })),
+    ]),
+  );
+
+  const tree: Array<ReactNode> = [];
+  let y = 0;
+  let selectedFile: File;
+  for (const fileOrDir of files) {
+    if (y === selected) selectedFile = fileOrDir;
+    if (fileOrDir.type === "directory") {
+      const dy = y;
+      tree.push(
+        <li
+          key={y}
+          className="text-[#a0b6ee]"
+          style={{ background: y === selected ? "#504651" : "" }}
+          onMouseDown={() => setSelected(dy)}
+          onDoubleClick={() => {
+            fileOrDir.folded = !fileOrDir.folded;
+            setFiles([...files]);
+          }}
+        >
+          {fileOrDir.folded ? (
+            <>
+              <span className="text-[#716471]"> </span>{" "}
+            </>
+          ) : (
+            <>  </>
+          )}
+          {fileOrDir.name}
+        </li>,
+      );
+      if (!fileOrDir.folded) {
+        for (let i = 0; i < fileOrDir.files.length; i++) {
+          y++;
+          if (y === selected)
+            selectedFile = { type: "file", name: fileOrDir.files[i] };
+
+          const icon = FILE_ICONS.UNKNOWN;
+          const fy = y;
+          tree.push(
+            <li
+              key={y}
+              style={{ background: y === selected ? "#504651" : "" }}
+              onMouseDown={() => setSelected(fy)}
+            >
+              {"  "}
+              <span className="text-[#5b515b]">
+                {i === fileOrDir.files.length - 1 ? "└ " : "│ "}
+              </span>
+              <span style={{ color: icon.color }}>{`${icon.char}`}</span>
+              <span>{fileOrDir.files[i]}</span>
+            </li>,
+          );
+        }
+      }
+    } else {
+      const parts = fileOrDir.name.split(".");
+      let extension = parts[parts.length - 1];
+      if (!FILE_ICONS[extension]) extension = "UNKNOWN";
+
+      const icon = FILE_ICONS[extension];
+
+      const fy = y;
+      tree.push(
+        <li
+          key={y}
+          style={{ background: y === selected ? "#504651" : "" }}
+          onMouseDown={() => setSelected(fy)}
+        >
+          {"  "}
+          <span style={{ color: icon.color }}>{`${icon.char}`}</span>
+          {fileOrDir.name === "README.md" ? (
+            <span className="font-bold text-[#d8c5a1]">README.md</span>
+          ) : (
+            <span>{fileOrDir.name}</span>
+          )}
+        </li>,
+      );
+    }
+    y++;
+  }
+
+  useEffect(() => {
+    const onScroll = (event: KeyboardEvent) => {
+      if (activeKitty !== props.id) return;
+      switch (event.key) {
+        case "ArrowUp":
+          setSelected((x) => Math.max(0, x - 1));
+          break;
+
+        case "ArrowDown":
+          setSelected((x) => Math.min(y - 1, x + 1));
+          break;
+
+        case "Enter":
+          if (selectedFile.type === "directory") {
+            selectedFile.folded = !selectedFile.folded;
+          } else {
+            console.log(`navigate to ${selectedFile.name}`);
+          }
+
+          setFiles([...files]);
+          break;
+      }
+    };
+
+    window.addEventListener("keydown", onScroll);
+
+    return () => {
+      window.removeEventListener("keydown", onScroll);
+    };
+  });
+
+  return (
+    <div className="h-full select-none bg-[#0000001a]">
+      <ul
+        style={{
+          padding: `${CHAR_HEIGHT}px ${CHAR_WIDTH}px 0 ${CHAR_WIDTH * 2}px`,
+        }}
+      >
+        {tree}
+      </ul>
+    </div>
+  );
+};

src/components/Nvim/index.tsx

@@ -1,10 +1,14 @@
+import { useKitty } from "~/hooks/useKitty";
 import { CHAR_HEIGHT } from "../Kitty";
 import { NvimEditor } from "./NvimEditor";
 import { NvimInput } from "./NvimInput";
 import { NvimStatusBar } from "./NvimStatusBar";
 import { NvimTree } from "./NvimTree";
 
-export const Nvim = () => (
+export const Nvim = (_props: {}) => {
+  const kitty = useKitty();
+
+  return (
     <div
       className="grid h-full"
       style={{
@@ -12,17 +16,26 @@ export const Nvim = () => (
         gridTemplateRows: `1fr ${CHAR_HEIGHT}px ${CHAR_HEIGHT}px`,
       }}
     >
+      {kitty && (
+        <>
           <div style={{ gridArea: "1 / 1 / 1 / 2" }}>
-      <NvimTree />
+            <NvimTree {...kitty} />
           </div>
           <div style={{ gridArea: "1 / 2 / 1 / 3" }}>
             <NvimEditor />
           </div>
           <div style={{ gridArea: "2 / 1 / 2 / 3" }}>
-      <NvimStatusBar label="INSERT" labelColor="#7ea7ca" fileName="README.md" />
+            <NvimStatusBar
+              label="INSERT"
+              labelColor="#7ea7ca"
+              fileName="README.md"
+            />
           </div>
           <div style={{ gridArea: "3 / 1 / 3 / 3" }}>
             <NvimInput />
           </div>
+        </>
+      )}
     </div>
   );
+};