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 }}
  pr_url:
    description: The URL for the PR index/number that exists or was created
    value: ${{ steps.set-pr-output.outputs.pr_url }}
  pr_comments_url:
    description: API endpoint for grabbing all comments of a PR
    value: ${{ steps.set-pr-output.outputs.pr_comments_url }}
  pr_comment_id:
    description: Latest PR comment ID from gitea-sonarqube-bot
    value: ${{ steps.set-pr-output.outputs.pr_comment_id }}
  pr_comment_uri:
    description: Direct API URI for latest PR comment
    value: ${{ steps.set-pr-output.outputs.pr_comment_uri }}

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: |
        set -e
        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
      id: check-opened-pr-step
      shell: bash
      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 $1}'\
          | tr -d '#')
        echo "pr_number=$pr_number" >> $GITHUB_OUTPUT

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

        created_pr_url=$(tea pr ls --state open \
          -r ${{ github.repository }} \
          -f index,url \
          -o simple \
          | grep "^${pr_number} " | awk '{print $2}')

        pr_comments_url="${{ inputs.url }}/api/v1/repos/${{ github.repository }}/issues/${pr_number}/comments"
        pr_comment_id=$(curl -sS -X GET "$pr_comments_url" | jq -r '[.[] | select(.user.login == "gitea-sonarqube-bot")] | sort_by(.created_at) | last | .id')
        pr_comment_uri="${{ inputs.url }}/api/v1/repos/${{ github.repository }}/issues/comments/${pr_comment_id}"

        echo "pr_url=$created_pr_url" >> $GITHUB_OUTPUT
        echo "pr_comments_url=$pr_comments_url" >> $GITHUB_OUTPUT
        echo "pr_comment_id=$pr_comment_id" >> $GITHUB_OUTPUT
        echo "pr_comment_uri=$pr_comment_uri" >> $GITHUB_OUTPUT

    - name: PR Creation
      id: pr-creation
      if: steps.check-opened-pr-step.outputs.pr_number == ''
      shell: bash
      env:
        PR_TITLE: ${{ inputs.pr-title }}
        PR_DESCRIP: ${{ inputs.pr-description }}
      run: |
        set -euo pipefail

        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 create \
          -r ${{ github.repository }} \
          -t "${PR_TITLE}" \
          -d "${PR_DESCRIP}" \
          -a "${{ inputs.assignee }}" \
          -L "${{ inputs.pr-label }}" \
          --output simple \
          | grep -m1 '#' \
          | awk '{print $1}' \
          | tr -d '#')

        created_pr_url="${{ inputs.url }}/${{ github.repository }}/pulls/${created_pr_index}"

        pr_comments_url="${{ inputs.url }}/api/v1/repos/${{ github.repository }}/issues/${created_pr_index}/comments"

        if [[ -z "${created_pr_index}" ]]; then
          echo "::error::tea pr create returned an empty PR index — check tea output format"
          exit 1
        fi

        {
          echo "created_pr_index=${created_pr_index}"
          echo "pr_url=${created_pr_url}"
          echo "pr_comments_url=${pr_comments_url}"
        } >> "$GITHUB_OUTPUT"

        echo "PR Created 🎫"

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

    - name: Verify outputs
      shell: bash
      run: |
        echo "PR Number: ${{ steps.set-pr-output.outputs.pr_number }}"
        echo "PR URL: ${{ steps.set-pr-output.outputs.pr_url }}"
        echo "PR Comments: ${{ steps.set-pr-output.outputs.pr_comments_url }}"
        echo "PR Comment ID: ${{ steps.set-pr-output.outputs.pr_comment_id }}"
        echo "PR Comment URI: ${{ steps.set-pr-output.outputs.pr_comment_uri }}"