name: "Discord Webhook"
description: "Send a message to Discord via webhook using curl"
inputs:
  webhook_url:
    description: "Discord webhook URL"
    required: true
  message:
    description: "Message to send"
    required: true
  username:
    description: "Override the default username of the webhook"
    required: false
    default: ""
  avatar_url:
    description: "Override the default avatar of the webhook"
    required: false
    default: ""
  color:
    description: "Embed color (decimal number)"
    required: false
    default: ""

runs:
  using: "composite"
  steps:
    - name: Send Discord notification
      shell: bash
      run: |
        if [ -n "${{ inputs.color }}" ]; then
          # Send as embed with color
          PAYLOAD=$(jq -n \
            --arg content "${{ inputs.message }}" \
            --arg username "${{ inputs.username }}" \
            --arg avatar "${{ inputs.avatar_url }}" \
            --arg color "${{ inputs.color }}" \
            '{
              content: (if $content != "" then $content else null end),
              username: (if $username != "" then $username else null end),
              avatar_url: (if $avatar != "" then $avatar else null end),
              embeds: (if $color != "" then [{description: $content, color: ($color | tonumber)}] else null end)
            } | with_entries(select(.value != null))')
        else
          # Send as simple message
          PAYLOAD=$(jq -n \
            --arg content "${{ inputs.message }}" \
            --arg username "${{ inputs.username }}" \
            --arg avatar "${{ inputs.avatar_url }}" \
            '{
              content: $content,
              username: (if $username != "" then $username else null end),
              avatar_url: (if $avatar != "" then $avatar else null end)
            } | with_entries(select(.value != null))')
        fi

        curl -H "Content-Type: application/json" \
             -d "$PAYLOAD" \
             "${{ inputs.webhook_url }}"