name: "PR Update Support List"
on:
    pull_request:
        # only run when "luci/luci-app-qmodem/root/usr/share/qmodem/modem_support.json" is changed
        paths:
            - 'luci/luci-app-qmodem/root/usr/share/qmodem/modem_support.json'

env:
    TZ: Asia/Shanghai

jobs:
    update_support_list:
        runs-on: ubuntu-latest
        steps:
            - name: Checkout PR Branch
              uses: actions/checkout@v2
              with:
                path: 'pr_branch'

            - name: Checkout Base Branch
              uses: actions/checkout@v2
              with:
                repository: ${{ github.repository }}
                ref: ${{ github.event.pull_request.base.ref }}
                path: 'base_branch'

            - name: Update Support List and Check
              id: update_modem_support_list
              env:
                GH_TOKEN: ${{ github.token }}
              run: |
                cd pr_branch
                is_json_invalid=0
                python3 ./scripts/update_support_list.py temp_support_list ./luci/luci-app-qmodem/root/usr/share/qmodem/modem_support.json || is_json_invalid=1
                
                if [ "$is_json_invalid" = "1" ]; then
                    echo "pr_close=1" >> $GITHUB_OUTPUT
                    echo "The JSON file is invalid, please check" >> pr_comment.txt
                    exit 0
                fi
                
                # Compare with base branch support_list.md
                is_diff=0
                if ! diff ./temp_support_list.md ../base_branch/docs/support_list.md > /dev/null 2>&1; then
                    is_diff=1
                fi
                
                # Generate pr_comment.txt for comment
                echo '```' > ./pr_comment.txt
                diff -u ./temp_support_list.md ../base_branch/docs/support_list.md >> ./pr_comment.txt || true
                echo '```' >> ./pr_comment.txt
                if [ "$is_diff" = "1" ]; then 
                    echo "The support list has been updated, please check the changes" >> ./pr_comment.txt
                    echo "pr_close=0" >> $GITHUB_OUTPUT
                    echo "has_diff=1" >> $GITHUB_OUTPUT
                else
                    echo "No changes in the support list" >> ./pr_comment.txt
                    echo "pr_close=0" >> $GITHUB_OUTPUT
                    echo "has_diff=0" >> $GITHUB_OUTPUT
                fi

            - name: Close PR if JSON Invalid
              if: steps.update_modem_support_list.outputs.pr_close == '1'
              env:
                GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
              run: |
                cd base_branch
                gh pr comment ${{ github.event.pull_request.number }} -F ../pr_branch/pr_comment.txt
                gh pr close ${{ github.event.pull_request.number }}

            - name: Comment on PR if JSON Valid
              if: steps.update_modem_support_list.outputs.pr_close == '0'
              env:
                GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
              run: |
                cd base_branch
                gh pr comment ${{ github.event.pull_request.number }} -F ../pr_branch/pr_comment.txt