---
- name: Backup Gitea
  hosts: gitea
  gather_facts: yes
  become: yes

  vars:
    gitea_container_name: "{{ gitea.dockercompose.services.gitea.container_name }}"
    gitea_user: "git"
    backup_dir: "{{ backup_root_dir }}/{{ backup_dirname }}"
    scripts_dir: "/home/pi/arcodange/docker_composes/gitea/scripts"
    keep_days: 3

  tasks:
    - name: S'assurer que le répertoire de backup existe
      file:
        path: "{{ backup_dir }}"
        state: directory
        mode: '0755'
    
    - name: define backup command
      set_fact:
        backup_cmd: >-
          docker exec -u {{ gitea_user }} {{ gitea_container_name }}
          gitea dump --skip-log --skip-db --skip-package-data --type tar.gz -c /data/gitea/conf/app.ini -C /data/gitea/ -f -
    
    - name: test backup_cmd
      ansible.builtin.shell: |
        {{ backup_cmd }} > /dev/null
    
    - name: Créer le script de backup
      copy:
        dest: "{{ scripts_dir }}/backup.sh"
        mode: '0755'
        content: |
          #!/bin/bash
          set -e
          mkdir -p {{ backup_dir }}
          {{ backup_cmd }} > {{ backup_dir }}/backup_$(date +\%Y\%m\%d).gitea.gz
          find {{ backup_dir }} -type f -name 'backup_*.gitea.gz' -mtime +{{ keep_days }} -delete

    - name: Ajouter une tâche cron pour backup Gitea tous les jours à 4h
      cron:
        name: "Backup Gitea archive"
        minute: "0"
        hour: "4"
        user: root
        job: "{{ scripts_dir }}/backup.sh"

    - name: Créer le script de restauration
      copy:
        dest: "{{ scripts_dir }}/restore.sh"
        mode: '0755'
        content: |
          #!/bin/bash
          set -e

          CONTAINER_NAME="{{ gitea_container_name }}"
          BACKUP_DIR="{{ backup_dir }}"

          if [ -z "$1" ]; then
            FILE=$(ls -1t "$BACKUP_DIR"/backup_*.gitea.gz | head -n 1)
            echo "Aucune date fournie, restauration du dernier dump : $FILE"
          else
            FILE="$BACKUP_DIR/backup_$1.gitea.gz"
            if [ ! -f "$FILE" ]; then
              echo "Fichier $FILE introuvable"
              exit 1
            fi
          fi

          echo "Copie du dump dans le container..."
          docker cp "$FILE" "$CONTAINER_NAME":/tmp/

          BASENAME=$(basename "$FILE" .gitea.gz)
          docker exec --user git "$CONTAINER_NAME" mkdir -p /tmp/$BASENAME/

          echo "Décompression du dump..."
          docker exec --user git "$CONTAINER_NAME" tar -xzf "/tmp/"$BASENAME".gitea.gz" --directory /tmp/$BASENAME/

          echo "Restauration des données..."
          docker exec --user git "$CONTAINER_NAME" bash -c "
            cd /tmp/$BASENAME/data &&
            find . -type d -exec mkdir -p /data/gitea/{} \; &&
            find . -type f -exec mv {} /data/gitea/{} \;
          "
          docker exec --user root "$CONTAINER_NAME" bash -c "
            cd /tmp/$BASENAME/repos &&
            find . -type d -exec mkdir -p /data/git/repositories/{} \; &&
            find . -type f -exec mv {} /data/git/repositories/{} \;
          "

          echo "Réglage des permissions..."
          docker exec "$CONTAINER_NAME" chown -R git:git /data

          echo "Régénération des hooks..."
          docker exec --user git "$CONTAINER_NAME" /usr/local/bin/gitea -c '/data/gitea/conf/app.ini' admin regenerate hooks

          echo "Netoyage"
          docker exec "$CONTAINER_NAME" find /tmp/ -maxdepth 1 -name "$BASENAME*" -exec rm -rf {} + -depth

          echo "Restauration Gitea terminée."