name: "Gitea Auto-PR (Github and Gitea Compatible)"
description: "Gitea-compatible version of https://github.com/arifer612/Gitea-PR-action"

branding:
  icon: "git-pull-request"
  color: "green"

inputs:
  url:
    description: URL to the Gitea instance
    required: true

  token:
    description: Personal access token to the Gitea instance
    required: true

  tea-version:
    description: Tea CLI version
    default: 0.10.1

  pr-title:
    description: Custom title. Defaults to using subject of the most recent commit.

  pr-description:
    description: Custom description. Defaults to using body of the most recent commit.

  pr-label:
    description: Labels for the PR (comma-separated)

  assignee:
    description: User to assign the PR to
    default: ${{ github.actor }}

outputs:
  pr_number:
    description: The PR index/number that exists or was created
    value: ${{ steps.set-pr-output.outputs.pr_number }}

runs:
  using: "composite"
  steps:
    - name: Install Tea
      env:
        TEA_DL_URL: "https://dl.gitea.com/tea/${{ inputs.tea-version }}/tea-${{ inputs.tea-version }}-linux-amd64"
      shell: bash
      run: |
        cd /tmp
        wget -q "${TEA_DL_URL}"
        wget -q "${TEA_DL_URL}.sha256"
        if $(sha256sum --quiet -c "tea-${{ inputs.tea-version }}-linux-amd64.sha256"); then
          mv "tea-${{ inputs.tea-version }}-linux-amd64" /usr/bin/tea
          chmod +x /usr/bin/tea
        else
          echo "WARNING ⛔: Tea v${{ inputs.tea-version }} Checksum Failed"
          exit 1
        fi

    - name: Login to Gitea
      shell: bash
      env:
        GIT_SERVER_URL: ${{ inputs.url }}
        GIT_SERVER_TOKEN: ${{ inputs.token }}
      run: |
        tea login add --url "$GIT_SERVER_URL" --token "$GIT_SERVER_TOKEN"

    - name: Check if open PR exists
      shell: bash
      id: check-opened-pr-step
      continue-on-error: true
      run: |
        echo "Checking for PR... 🔎"
        pr_number=$(tea pr list \
          --repo ${{ github.repository }} \
          --state open \
          --fields index,head \
          --output simple \
          | egrep "${{ github.ref_name }}" \
          | awk '{print $1}')
        echo "pr_number=$pr_number" >> $GITHUB_OUTPUT

    - name: Skip PR Creation
      if: steps.check-opened-pr-step.outputs.pr_number != ''
      shell: bash
      run: |
        echo -e "✅ A PR already exists for ${{ github.ref_name }} (PR #${{ steps.check-opened-pr-step.outputs.pr_number }})"

    - name: PR Creation
      shell: bash
      if: steps.check-opened-pr-step.outputs.pr_number == ''
      id: pr-creation
      env:
        PR_TITLE: ${{ inputs.pr-title }}
        PR_DESCRIP: ${{ inputs.pr-description }}
      run: |
        if [ -z "${PR_TITLE}" ]; then
          PR_TITLE=$(git log -n 1 --format=%s)
        fi
        if [ -z "${PR_DESCRIP}" ]; then
          PR_DESCRIP=$(git log -n 1 --format=%b)
        fi

        created_pr_index=$(tea pr c -r ${{ github.repository }} \
          -t "${PR_TITLE}" \
          -d "${PR_DESCRIP}" \
          -a ${{ inputs.assignee }} \
          -L "${{ inputs.pr-label }}" \
          --output simple \
          | awk '{print $1}')

        echo "PR Created 🎫 (PR #$created_pr_index)"
        echo "created_pr_index=$created_pr_index" >> $GITHUB_OUTPUT

    - name: Set unified PR number output
      id: set-pr-output
      shell: bash
      env:
        EXISTING_PR: ${{ steps.check-opened-pr-step.outputs.pr_number }}
        CREATED_PR: ${{ steps.pr-creation.outputs.created_pr_index }}
      run: |
        if [ -n "$EXISTING_PR" ]; then
          echo "pr_number=$EXISTING_PR" >> $GITHUB_OUTPUT
        else
          echo "pr_number=$CREATED_PR" >> $GITHUB_OUTPUT