# The nightly: every day at 06:00 UTC (or by hand), build `main` as
# `X.Y.Z-nightly.YYYYMMDD.<sha>` — X.Y.Z being the version the tree declares
# with its prerelease part dropped — and publish it as the rolling `nightly`
# prerelease, replacing yesterday's. The app's Nightly channel reads
# `releases/download/nightly/latest.json`; a different build is always an
# update there (updater.rs), so the number does not need to climb.
#
# Same secrets and optional publish target as release.yml.
name: nightly

on:
  schedule:
    - cron: "0 6 * * *"
  workflow_dispatch:

permissions:
  contents: write

jobs:
  windows:
    runs-on: windows-latest
    steps:
      - uses: actions/checkout@v4
        with:
          ref: main

      - uses: actions/setup-node@v4
        with:
          node-version: 22
          cache: npm

      - uses: dtolnay/rust-toolchain@stable

      - uses: Swatinem/rust-cache@v2
        with:
          workspaces: "./src-tauri -> ../target"

      - run: npm ci

      - name: Stamp the nightly version
        id: stamp
        shell: bash
        run: |
          base=$(node -p "require('./package.json').version.split('-')[0]")
          ver="$base-nightly.$(date -u +%Y%m%d).$(git rev-parse --short HEAD)"
          echo "version=$ver" >> "$GITHUB_OUTPUT"
          node -e '
            const fs = require("fs"); const v = process.argv[1];
            for (const f of ["package.json", "package-lock.json"]) {
              const j = JSON.parse(fs.readFileSync(f, "utf8"));
              j.version = v; if (j.packages && j.packages[""]) j.packages[""].version = v;
              fs.writeFileSync(f, JSON.stringify(j, null, 2) + "\n");
            }
            const c = JSON.parse(fs.readFileSync("src-tauri/tauri.conf.json", "utf8"));
            c.version = v; fs.writeFileSync("src-tauri/tauri.conf.json", JSON.stringify(c, null, 2) + "\n");
          ' "$ver"
          sed -i "0,/^version = \"[^\"]*\"/s//version = \"$ver\"/" Cargo.toml
          echo "nightly $ver"

      - name: Replace yesterday's nightly
        shell: bash
        env:
          GH_TOKEN: ${{ secrets.RELEASES_TOKEN || secrets.GITHUB_TOKEN }}
          TARGET: ${{ vars.RELEASES_OWNER || github.repository_owner }}/${{ vars.RELEASES_REPO || github.event.repository.name }}
        run: gh release delete nightly --repo "$TARGET" --cleanup-tag --yes || true

      - name: Build, sign and publish
        uses: tauri-apps/tauri-action@v0
        env:
          GITHUB_TOKEN: ${{ secrets.RELEASES_TOKEN || secrets.GITHUB_TOKEN }}
          TAURI_SIGNING_PRIVATE_KEY: ${{ secrets.TAURI_SIGNING_PRIVATE_KEY }}
          TAURI_SIGNING_PRIVATE_KEY_PASSWORD: ${{ secrets.TAURI_SIGNING_PRIVATE_KEY_PASSWORD }}
        with:
          owner: ${{ vars.RELEASES_OWNER || github.repository_owner }}
          repo: ${{ vars.RELEASES_REPO || github.event.repository.name }}
          tagName: nightly
          releaseName: "Nightly ${{ steps.stamp.outputs.version }}"
          releaseBody: "Built from main at ${{ github.sha }}. Nightlies can break."
          releaseDraft: false
          prerelease: true
          includeUpdaterJson: true
          args: --bundles nsis

      # A private repository's assets are reachable only through the API, so the
      # manifest's download URLs become API asset URLs — the app sends its token
      # and `Accept: application/octet-stream` for those (updater.rs). Public
      # repositories serve the same URLs to anyone, so nothing is lost.
      - name: Point the manifest at the API assets
        shell: bash
        env:
          GH_TOKEN: ${{ secrets.RELEASES_TOKEN || secrets.GITHUB_TOKEN }}
          TARGET: ${{ vars.RELEASES_OWNER || github.repository_owner }}/${{ vars.RELEASES_REPO || github.event.repository.name }}
          TAG: nightly
        run: |
          gh release download "$TAG" --repo "$TARGET" --pattern latest.json --output latest.json --clobber
          gh api "repos/$TARGET/releases/tags/$TAG" > release.json
          node -e '
            const fs = require("fs");
            const m = JSON.parse(fs.readFileSync("latest.json", "utf8"));
            const rel = JSON.parse(fs.readFileSync("release.json", "utf8"));
            for (const p of Object.values(m.platforms)) {
              const name = decodeURIComponent(p.url.split("/").pop());
              const a = rel.assets.find((x) => x.name === name);
              if (!a) { console.error("no asset named", name); process.exit(1); }
              p.url = a.url;
            }
            fs.writeFileSync("latest.json", JSON.stringify(m, null, 2) + "\n");
            console.log(JSON.stringify(m, null, 2));
          '
          gh release upload "$TAG" latest.json --repo "$TARGET" --clobber