esbuild returns?

2 files changed, 80 insertions, 13 deletions

diff --git a/package.json b/package.json
index 56aebeb..5f818b6 100644
--- a/package.json
+++ b/package.json
@@ -2,7 +2,10 @@
   "name": "gleam-wechat-dev-tools",
   "version": "0.1.0",
   "description": "build wechat miniprogram with gleam",
-  "scripts": {},
+  "scripts": {
+    "build": "gleam run -m build",
+    "clean": "rm -rf dist/*"
+  },
   "author": "Kai WU",
   "license": "MIT",
   "dependencies": {
diff --git a/src/build.gleam b/src/build.gleam
index a35e8aa..2b26915 100644
--- a/src/build.gleam
+++ b/src/build.gleam
@@ -1,15 +1,9 @@
-// import gleam/string
+import gleam/io
+import gleam/list
+import gleam/string
+import gleam/result
 import gleam/javascript/promise.{type Promise}
-// import bundle
-
-// const entry = "./build/dev/javascript/wechat_dev_tools/bundle.mjs"
-// const app_content = "import { app } from './bundle.mjs'; app()"
-// const dist = "./dist/"
-// const src = "./src/"
-//
-// fn page_content(p: String) -> String {
-//  "improt { pages, page } from './bundle.mjs'; page(pages(), \"" <> p <> "\")"
-// } 
+import bundle
 
 @external(javascript, "./build_ffi.mjs", "bundle_build")
 pub fn bundle_build(entry f: String, outfile o: String) -> Promise(Result(Nil, String))
@@ -26,6 +20,76 @@ pub fn wxml_build(wxml f: String, outfile o: String) -> Promise(Result(Nil, Stri
 @external(javascript, "./build_ffi.mjs", "less_build")
 pub fn less_build(less f: String, outfile o: String) -> Promise(Result(Nil, String))
 
+const entry = "./build/dev/javascript/wechat_dev_tools/bundle.mjs"
+const app_content = "import { app } from './bundle.mjs'; app()"
+const dist = "./dist/"
+const src = "./src/"
+
+pub type Builder = fn(String, String) -> Promise(Result(Nil, String))
+
+pub type Asset {
+    Asset(src: String, dist: String, builder: Builder)
+}
+
+fn file_path(path: String, p: String, t: String) -> String {
+  string.concat([ path, p, "/", p, ".", t, ])
+}
+
+fn page_content(p: String) -> String {
+  string.concat([
+    "improt { pages, page } from './bundle.mjs'; page(pages(), \"",
+    p,
+    "\")",
+  ])
+}
+
+fn bundle_asset() -> List(Asset) {
+  [ Asset(entry, dist <> "bundle.mjs", bundle_build) ]
+}
+
+fn app_assets() -> List(Asset) {
+  [ Asset(app_content, dist <> "app.js", js_build),
+    Asset(src <> "app.json", dist <> "app.json", json_build),
+    Asset(src <> "less", dist <> "app.wxss", less_build) ]
+}
+
+fn page_assets(p: String) -> List(Asset) {
+  [ Asset(page_content(p), file_path(dist, p, "js"), js_build),
+    Asset(file_path(src, p, "json"), file_path(dist, p, "json"), json_build),
+    Asset(file_path(src, p, "wxml"), file_path(dist, p, "wxml"), wxml_build),
+    Asset(file_path(src, p, "less"), file_path(dist, p, "wxss"), less_build) ]
+}
+
+fn pages_assets() -> List(Asset) {
+  bundle.pages()
+  |> list.map(fn(p) { p.0 })
+  |> list.flat_map(fn(p) { page_assets(p) })
+}
+
+fn fold_result(r0: Result(Nil, String), r: Result(Nil, String)) -> Result(Nil, String) {
+  case r {
+    Ok(Nil) -> r0
+    Error(_) -> r
+  }
+}
+
+fn build(ass: List(Asset)) -> Promise(Result(Nil, String)) {
+  ass
+  |> list.map(fn(a) { a.builder(a.src, a.dist) })
+  |> promise.await_list
+  |> promise.map(fn(ls) {
+       ls
+       |> list.fold(Ok(Nil), fold_result)
+     })
+}
+
 pub fn main() {
-  Nil
+  use r0 <- promise.await(build(bundle_asset()))
+  use r1 <- promise.await(build(app_assets()))
+  use r2 <- promise.await(build(pages_assets()))
+
+  [r0, r1, r2]
+  |> list.fold(Ok(Nil), fold_result)
+  |> result.map_error(fn (e) { io.println(e) })
+  |> promise.resolve
 }