name: "Bot - /build"

on:
  issue_comment:
    types: [created]

permissions:
  contents: read
  pull-requests: write
  issues: write

jobs:
  build:
    if: >-
      github.event.issue.pull_request &&
      contains(github.event.comment.body, '/build')
    runs-on: macos-latest
    steps:
      - name: Check org membership
        uses: actions/github-script@v9
        with:
          github-token: ${{ secrets.HOMEBREW_GITHUB_TOKEN }}
          script: |
            const user = context.payload.comment.user.login;
            try {
              const { status } = await github.rest.orgs.checkMembershipForUser({
                org: 'floatpane',
                username: user
              });
              if (status !== 204 && status !== 302) {
                core.setFailed(`@${user} is not a member of the floatpane org.`);
              }
            } catch (e) {
              await github.rest.reactions.createForIssueComment({
                owner: context.repo.owner,
                repo: context.repo.repo,
                comment_id: context.payload.comment.id,
                content: '-1'
              });
              core.setFailed(`@${user} is not a member of the floatpane org.`);
            }

      - name: React to comment
        uses: actions/github-script@v9
        with:
          github-token: ${{ secrets.HOMEBREW_GITHUB_TOKEN }}
          script: |
            await github.rest.reactions.createForIssueComment({
              owner: context.repo.owner,
              repo: context.repo.repo,
              comment_id: context.payload.comment.id,
              content: 'rocket'
            });

      - name: Get PR ref
        id: pr
        uses: actions/github-script@v9
        with:
          github-token: ${{ secrets.HOMEBREW_GITHUB_TOKEN }}
          script: |
            const { data: pr } = await github.rest.pulls.get({
              owner: context.repo.owner,
              repo: context.repo.repo,
              pull_number: context.issue.number
            });
            core.setOutput('ref', pr.head.ref);
            core.setOutput('sha', pr.head.sha);
            core.setOutput('repo', pr.head.repo.full_name);

      - name: Checkout
        uses: actions/checkout@v6
        with:
          repository: ${{ steps.pr.outputs.repo }}
          ref: ${{ steps.pr.outputs.ref }}
          fetch-depth: 0

      - name: Set up Go
        uses: actions/setup-go@v6
        with:
          go-version: "1.26.3"

      - name: Set up Zig
        uses: goto-bus-stop/setup-zig@v2

      - name: Set up libpcsclite for Linux cross-compilation
        run: |
          PCSC_DIR="$RUNNER_TEMP/pcsclite"
          mkdir -p "$PCSC_DIR/include" "$PCSC_DIR/lib/pkgconfig"

          # Download pcsc-lite headers from upstream
          PCSC_URL="https://raw.githubusercontent.com/LudovicRousseau/PCSC/master/src/PCSC"
          for header in winscard.h wintypes.h; do
            curl -fsSL "$PCSC_URL/$header" -o "$PCSC_DIR/include/$header"
          done
          curl -fsSL "$PCSC_URL/pcsclite.h.in" -o "$PCSC_DIR/include/pcsclite.h"
          sed -i '' 's/@VERSION@/1.9.0/' "$PCSC_DIR/include/pcsclite.h"

          # Build stub library
          cat > "$RUNNER_TEMP/pcsclite_stub.c" << 'STUB'
          #include <stddef.h>
          typedef long LONG;
          typedef unsigned long DWORD;
          typedef void *LPCVOID;
          typedef char *LPSTR;
          typedef const char *LPCSTR;
          typedef unsigned char *LPBYTE;
          typedef unsigned char BYTE;
          typedef LONG SCARDCONTEXT;
          typedef LONG SCARDHANDLE;
          typedef struct { DWORD dwProtocol; DWORD cbPciLength; } SCARD_IO_REQUEST;
          typedef struct { LPCSTR szReader; DWORD dwCurrentState; DWORD dwEventState; DWORD cbAtr; unsigned char rgbAtr[36]; void *pvUserData; } SCARD_READERSTATE;
          LONG SCardEstablishContext(DWORD s, LPCVOID r1, LPCVOID r2, SCARDCONTEXT *c) { return 0; }
          LONG SCardReleaseContext(SCARDCONTEXT c) { return 0; }
          LONG SCardIsValidContext(SCARDCONTEXT c) { return 0; }
          LONG SCardCancel(SCARDCONTEXT c) { return 0; }
          LONG SCardConnect(SCARDCONTEXT c, LPCSTR r, DWORD s, DWORD p, SCARDHANDLE *h, DWORD *ap) { return 0; }
          LONG SCardReconnect(SCARDHANDLE h, DWORD s, DWORD p, DWORD d, DWORD *ap) { return 0; }
          LONG SCardDisconnect(SCARDHANDLE h, DWORD d) { return 0; }
          LONG SCardBeginTransaction(SCARDHANDLE h) { return 0; }
          LONG SCardEndTransaction(SCARDHANDLE h, DWORD d) { return 0; }
          LONG SCardStatus(SCARDHANDLE h, LPSTR r, DWORD *rl, DWORD *s, DWORD *p, LPBYTE a, DWORD *al) { return 0; }
          LONG SCardTransmit(SCARDHANDLE h, const SCARD_IO_REQUEST *si, const BYTE *s, DWORD sl, SCARD_IO_REQUEST *ri, BYTE *r, DWORD *rl) { return 0; }
          LONG SCardControl(SCARDHANDLE h, DWORD c, LPCVOID i, DWORD il, void *o, DWORD ol, DWORD *br) { return 0; }
          LONG SCardGetAttrib(SCARDHANDLE h, DWORD a, LPBYTE b, DWORD *bl) { return 0; }
          LONG SCardSetAttrib(SCARDHANDLE h, DWORD a, const BYTE *b, DWORD bl) { return 0; }
          LONG SCardListReaders(SCARDCONTEXT c, LPCSTR g, LPSTR r, DWORD *rl) { return 0; }
          LONG SCardListReaderGroups(SCARDCONTEXT c, LPSTR g, DWORD *gl) { return 0; }
          LONG SCardGetStatusChange(SCARDCONTEXT c, DWORD t, SCARD_READERSTATE *s, DWORD n) { return 0; }
          LONG SCardFreeMemory(SCARDCONTEXT c, LPCVOID m) { return 0; }
          const char *pcsc_stringify_error(LONG e) { return "stub"; }
          STUB

          zig cc -c -target x86_64-linux-musl -o "$RUNNER_TEMP/pcsclite_stub_amd64.o" "$RUNNER_TEMP/pcsclite_stub.c"
          zig cc -c -target aarch64-linux-musl -o "$RUNNER_TEMP/pcsclite_stub_arm64.o" "$RUNNER_TEMP/pcsclite_stub.c"

          mkdir -p "$PCSC_DIR/lib/amd64" "$PCSC_DIR/lib/arm64"
          ar rcs "$PCSC_DIR/lib/amd64/libpcsclite.a" "$RUNNER_TEMP/pcsclite_stub_amd64.o"
          ar rcs "$PCSC_DIR/lib/arm64/libpcsclite.a" "$RUNNER_TEMP/pcsclite_stub_arm64.o"

          cat > "$PCSC_DIR/lib/pkgconfig/libpcsclite.pc" << EOF
          Name: libpcsclite
          Description: PC/SC Lite
          Version: 1.9.0
          Cflags: -I$PCSC_DIR/include
          Libs: -L$PCSC_DIR/lib/amd64 -lpcsclite
          EOF

          echo "PKG_CONFIG_PATH=$PCSC_DIR/lib/pkgconfig" >> $GITHUB_ENV
          echo "PCSC_DIR=$PCSC_DIR" >> $GITHUB_ENV

      - name: Get macOS SDK path
        id: macos_sdk
        run: echo "path=$(xcrun --show-sdk-path)" >> $GITHUB_OUTPUT

      - name: Build with GoReleaser (snapshot)
        uses: goreleaser/goreleaser-action@v7
        with:
          version: latest
          args: release --snapshot --clean --config .goreleaser.preview.yml
        env:
          SDK_PATH: ${{ steps.macos_sdk.outputs.path }}

      - name: Create preview release and upload assets
        id: release
        env:
          GH_TOKEN: ${{ secrets.HOMEBREW_GITHUB_TOKEN }}
        run: |
          TAG="preview-pr${{ github.event.issue.number }}"
          SHA="${{ steps.pr.outputs.sha }}"
          SHORT_SHA="${SHA:0:7}"

          # Delete existing preview release for this PR
          gh release delete "$TAG" --yes --cleanup-tag -R "${{ github.repository }}" 2>/dev/null || true

          # Create prerelease
          gh release create "$TAG" dist/*.tar.gz dist/*.zip dist/checksums.txt \
            --title "Preview Build (PR #${{ github.event.issue.number }} @ ${SHORT_SHA})" \
            --notes "Preview build from PR #${{ github.event.issue.number }} at commit ${SHORT_SHA}. **Not for production use.**" \
            --prerelease \
            -R "${{ github.repository }}"

          echo "tag=$TAG" >> $GITHUB_OUTPUT

      - name: Post comment with download links
        uses: actions/github-script@v9
        with:
          github-token: ${{ secrets.HOMEBREW_GITHUB_TOKEN }}
          script: |
            const sha = '${{ steps.pr.outputs.sha }}'.slice(0, 7);
            const tag = '${{ steps.release.outputs.tag }}';
            const base = `${context.serverUrl}/${context.repo.owner}/${context.repo.repo}/releases/download/${tag}`;

            const files = [
              ['Linux', 'amd64', 'matcha_preview_linux_amd64.tar.gz'],
              ['Linux', 'arm64', 'matcha_preview_linux_arm64.tar.gz'],
              ['macOS', 'amd64', 'matcha_preview_darwin_amd64.tar.gz'],
              ['macOS', 'arm64', 'matcha_preview_darwin_arm64.tar.gz'],
              ['Windows', 'amd64', 'matcha_preview_windows_amd64.zip'],
              ['Windows', 'arm64', 'matcha_preview_windows_arm64.zip'],
            ];

            const rows = files.map(([os, arch, file]) =>
              `| ${os} | ${arch} | [${file}](${base}/${file}) |`
            ).join('\n');

            const body = [
              `### Build complete (\`${sha}\`)`,
              '',
              '> [!WARNING]',
              '> This is an **unreviewed PR build** and has not been security audited. It may contain bugs, vulnerabilities, or malicious code. **Do not use for daily use.** Only use for testing purposes.',
              '',
              '| OS | Arch | Download |',
              '|---|---|---|',
              rows,
            ].join('\n');

            await github.rest.issues.createComment({
              owner: context.repo.owner,
              repo: context.repo.repo,
              issue_number: context.issue.number,
              body
            });
