1 files changed, 77 insertions, 1 deletions
diff --git a/src/build_ffi.mjs b/src/build_ffi.mjs
index eff03bf..df15223 100644
--- a/src/build_ffi.mjs
+++ b/src/build_ffi.mjs
@@ -1,4 +1,4 @@
-import { build } from 'esbuild'
+import { build, context } from 'esbuild'
 import { Ok, Error } from "./gleam.mjs"
 import { lessLoader } from 'esbuild-plugin-less';
 
@@ -65,3 +65,79 @@ export function less_build(css, out) {
       })
   })
 }
+
+export function bundle_watch(entry, out) {
+  return new Promise(resolve => {
+      context({
+        entryPoints: [entry],
+        bundle: true,
+        minify: true,
+        format: 'esm',
+        outfile: out,
+      }).then(function(ctx){
+        ctx.watch()
+        console.log("watching bundle...")
+      }).then(function(){
+        resolve(new Ok(undefined))
+      }).catch(function(e){
+        resolve(new Error(JSON.stringify(e)))
+      })
+  })
+}
+
+export function js_watch(js, out) {
+  return new Promise(resolve => {
+      context({
+        stdin: {
+          contents: js,
+          loader: 'js',
+        },
+        bundle: false,
+        minify: false,
+        format: 'esm',
+        outfile: out,
+      }).then(function(ctx){
+        ctx.watch()
+        console.log("watching js...")
+      }).then(function(){
+        resolve(new Ok(undefined))
+      }).catch(function(e){
+        resolve(new Error(JSON.stringify(e)))
+      })
+  })
+}
+
+export function copy_watch(src, out) {
+  return new Promise(resolve => {
+      context({
+        entryPoints: [src],
+        loader: {'.wxml': 'copy', '.json': 'copy'},
+        outfile: out,
+      }).then(function(ctx){
+        ctx.watch()
+        console.log(`watching json/wxml ${src}...`)
+      }).then(function(){
+        resolve(new Ok(undefined))
+      }).catch(function(e){
+        resolve(new Error(JSON.stringify(e)))
+      })
+  })
+}
+
+export function less_watch(css, out) {
+  return new Promise(resolve => {
+      context({
+        entryPoints: [css],
+        plugins: [lessLoader()],
+        loader: {'.less': 'css'},
+        outfile: out,
+      }).then(function(ctx){
+        ctx.watch()
+        console.log(`watching css ${css}...`)
+      }).then(function(){
+        resolve(new Ok(undefined))
+      }).catch(function(e){
+        resolve(new Error(JSON.stringify(e)))
+      })
+  })
+}