---
- name: Diagnose Gitea Bad Gateway Issue
  hosts: production
  gather_facts: yes
  become: no

  vars:
    gitea_stack_path: "{{ stacks_base_path }}/gitea"

  tasks:
    - name: Check if Gitea stack directory exists
      stat:
        path: "{{ gitea_stack_path }}"
      register: gitea_stack_dir

    - name: Display Gitea stack directory status
      debug:
        msg: "Gitea stack path: {{ gitea_stack_path }} - Exists: {{ gitea_stack_dir.stat.exists }}"

    - name: Check Gitea container status
      shell: |
        cd {{ gitea_stack_path }}
        echo "=== Gitea Container Status ==="
        docker compose ps 2>&1 || echo "Could not check container status"
      args:
        executable: /bin/bash
      register: gitea_status
      ignore_errors: yes
      failed_when: false
      when: gitea_stack_dir.stat.exists

    - name: Display Gitea container status
      debug:
        msg: "{{ gitea_status.stdout_lines }}"
      when: gitea_stack_dir.stat.exists

    - name: Check if Gitea container is running
      shell: |
        docker ps --filter name=gitea --format "{{ '{{' }}.Names{{ '}}' }}: {{ '{{' }}.Status{{ '}}' }}"
      register: gitea_running
      ignore_errors: yes
      failed_when: false

    - name: Display Gitea running status
      debug:
        msg: "{{ gitea_running.stdout_lines if gitea_running.stdout else 'Gitea container not found' }}"

    - name: Check Gitea logs (last 50 lines)
      shell: |
        cd {{ gitea_stack_path }}
        echo "=== Gitea Logs (Last 50 lines) ==="
        docker compose logs --tail=50 gitea 2>&1 || echo "Could not read Gitea logs"
      args:
        executable: /bin/bash
      register: gitea_logs
      ignore_errors: yes
      failed_when: false
      when: gitea_stack_dir.stat.exists

    - name: Display Gitea logs
      debug:
        msg: "{{ gitea_logs.stdout_lines }}"
      when: gitea_stack_dir.stat.exists

    - name: Check Gitea container health
      shell: |
        docker inspect gitea --format '{{ '{{' }}.State.Health.Status{{ '}}' }}' 2>&1 || echo "Could not check health"
      register: gitea_health
      ignore_errors: yes
      failed_when: false

    - name: Display Gitea health status
      debug:
        msg: "Gitea health: {{ gitea_health.stdout }}"

    - name: Test Gitea health endpoint from container
      shell: |
        docker exec gitea curl -f http://localhost:3000/api/healthz 2>&1 || echo "Health check failed"
      register: gitea_internal_health
      ignore_errors: yes
      failed_when: false

    - name: Display internal health check result
      debug:
        msg: "{{ gitea_internal_health.stdout_lines }}"

    - name: Check if Gitea is reachable from Traefik network
      shell: |
        docker exec traefik curl -f http://gitea:3000/api/healthz 2>&1 || echo "Could not reach Gitea from Traefik network"
      register: gitea_from_traefik
      ignore_errors: yes
      failed_when: false

    - name: Display Traefik to Gitea connectivity
      debug:
        msg: "{{ gitea_from_traefik.stdout_lines }}"

    - name: Check Traefik logs for Gitea errors
      shell: |
        cd {{ stacks_base_path }}/traefik
        echo "=== Traefik Logs - Gitea related (Last 30 lines) ==="
        docker compose logs --tail=100 traefik 2>&1 | grep -i "gitea" | tail -30 || echo "No Gitea-related logs found"
      args:
        executable: /bin/bash
      register: traefik_gitea_logs
      ignore_errors: yes
      failed_when: false

    - name: Display Traefik Gitea logs
      debug:
        msg: "{{ traefik_gitea_logs.stdout_lines }}"

    - name: Check Docker networks
      shell: |
        echo "=== Docker Networks ==="
        docker network ls
        echo ""
        echo "=== Traefik Network Details ==="
        docker network inspect traefik-public 2>&1 | grep -E "(Name|Subnet|Containers|gitea)" || echo "Could not inspect traefik-public network"
      args:
        executable: /bin/bash
      register: network_info
      ignore_errors: yes
      failed_when: false

    - name: Display network info
      debug:
        msg: "{{ network_info.stdout_lines }}"

    - name: Check if Gitea is in traefik-public network
      shell: |
        docker network inspect traefik-public 2>&1 | grep -i "gitea" || echo "Gitea not found in traefik-public network"
      register: gitea_in_network
      ignore_errors: yes
      failed_when: false

    - name: Display Gitea network membership
      debug:
        msg: "{{ gitea_in_network.stdout_lines }}"

    - name: Check Gitea container configuration
      shell: |
        echo "=== Gitea Container Labels ==="
        docker inspect gitea --format '{{ '{{' }}range .Config.Labels{{ '}}' }}{{ '{{' }}.Key{{ '}}' }}={{ '{{' }}.Value{{ '}}' }}{{ '{{' }}\n{{ '}}' }}{{ '{{' }}end{{ '}}' }}' 2>&1 | grep -i traefik || echo "No Traefik labels found"
      register: gitea_labels
      ignore_errors: yes
      failed_when: false

    - name: Display Gitea labels
      debug:
        msg: "{{ gitea_labels.stdout_lines }}"

    - name: Check Traefik service registration
      shell: |
        docker exec traefik wget -qO- http://localhost:8080/api/http/services 2>&1 | grep -i gitea || echo "Gitea service not found in Traefik API"
      register: traefik_service
      ignore_errors: yes
      failed_when: false

    - name: Display Traefik service registration
      debug:
        msg: "{{ traefik_service.stdout_lines }}"

    - name: Test external Gitea access
      shell: |
        echo "=== Testing External Gitea Access ==="
        curl -k -H "User-Agent: Mozilla/5.0" -s -o /dev/null -w "HTTP Status: %{http_code}\n" https://git.michaelschiemer.de/ 2>&1 || echo "Connection failed"
      args:
        executable: /bin/bash
      register: external_test
      ignore_errors: yes
      failed_when: false

    - name: Display external test result
      debug:
        msg: "{{ external_test.stdout_lines }}"

    - name: Summary
      debug:
        msg:
          - "=== DIAGNOSIS SUMMARY ==="
          - "1. Check if Gitea container is running"
          - "2. Check if Gitea is in traefik-public network"
          - "3. Check Gitea health endpoint (port 3000)"
          - "4. Check Traefik can reach Gitea"
          - "5. Check Traefik logs for errors"
          - ""
          - "Common issues:"
          - "- Container not running: Restart with 'docker compose up -d' in {{ gitea_stack_path }}"
          - "- Not in network: Recreate container or add to network"
          - "- Health check failing: Check Gitea logs for errors"
          - "- Traefik can't reach: Check network configuration"