#!/usr/bin/env bats

load helpers/setup

SYNC_SCRIPT="$BATS_TEST_DIRNAME/../scripts/darktable_sync.sh"

setup() {
    create_valid_env
    mkdir -p "$HOME/.config/darktable"
    touch "$HOME/.config/darktable/library.db"
    touch "$HOME/.config/darktable/data.db"
    rm -f "$HOME/.config/darktable/"*.bak
    mkdir -p "$HOME/Pictures"
    touch "$HOME/Pictures/test.jpg"
    export DISPLAY=:99
}

# --- Grundlegende Sync-Verhaltenstests ---

@test "sync_pending wird gesetzt wenn Server nicht erreichbar" {
    run_with_stubs env SSH_STUB_FAIL=1 bash "$SYNC_SCRIPT" --execute
    [ "$status" -eq 0 ]
    [ -f "$CONFIG_DIR/sync_pending" ]
}

@test "sync_pending wird entfernt bei erfolgreichem Sync" {
    touch "$CONFIG_DIR/sync_pending"
    run_with_stubs env SSH_STUB_FAIL=0 bash "$SYNC_SCRIPT" --execute
    [ "$status" -eq 0 ]
    [ ! -f "$CONFIG_DIR/sync_pending" ]
}

@test "sync_pending wird gesetzt wenn unison fehlschlaegt" {
    run_with_stubs env SSH_STUB_FAIL=0 UNISON_STUB_FAIL=1 bash "$SYNC_SCRIPT" --execute
    [ "$status" -eq 1 ]
    [ -f "$CONFIG_DIR/sync_pending" ]
}

@test "DB-Backup wird vor Sync erstellt" {
    run_with_stubs env SSH_STUB_FAIL=0 bash "$SYNC_SCRIPT" --execute
    [ "$status" -eq 0 ]
    [ -f "$HOME/.config/darktable/library.db.bak" ]
    [ -f "$HOME/.config/darktable/data.db.bak" ]
}

@test "Versionskonflikt: gleiche Major.Minor gibt kein Exit 1" {
    run_with_stubs env SSH_STUB_FAIL=0 SSH_STUB_OUTPUT="this is darktable 5.0.1" \
        DARKTABLE_STUB_VERSION="5.0.1" DRY_RUN_SKIP_CONFIRM=1 bash "$SYNC_SCRIPT"
    [ "$status" -eq 0 ]
}

@test "Versionskonflikt: andere Major.Minor gibt Exit 1" {
    run_with_stubs env SSH_STUB_FAIL=0 SSH_STUB_OUTPUT="this is darktable 4.8.0" \
        DARKTABLE_STUB_VERSION="5.0.0" DRY_RUN_SKIP_CONFIRM=1 bash "$SYNC_SCRIPT"
    [ "$status" -eq 1 ]
    [ -f "$CONFIG_DIR/sync_pending" ]
}

@test "Lockdir wird nach Abschluss entfernt" {
    run_with_stubs env SSH_STUB_FAIL=0 bash "$SYNC_SCRIPT" --execute
    [ "$status" -eq 0 ]
    [ ! -d "$CONFIG_DIR/sync.lock" ]
}

# --- Dry-Run-Verhalten ---

@test "Trockenlauf ist Standard ohne --execute" {
    run_with_stubs env SSH_STUB_FAIL=0 DRY_RUN_SKIP_CONFIRM=1 bash "$SYNC_SCRIPT"
    [ "$status" -eq 0 ]
    [[ "$output" == *"TROCKENLAUF"* ]]
}

@test "Trockenlauf erstellt kein Backup" {
    run_with_stubs env SSH_STUB_FAIL=0 DRY_RUN_SKIP_CONFIRM=1 bash "$SYNC_SCRIPT"
    [ "$status" -eq 0 ]
    [ ! -f "$HOME/.config/darktable/library.db.bak" ]
    [ ! -f "$HOME/.config/darktable/data.db.bak" ]
}

@test "Trockenlauf loescht sync_pending nicht" {
    touch "$CONFIG_DIR/sync_pending"
    run_with_stubs env SSH_STUB_FAIL=0 DRY_RUN_SKIP_CONFIRM=1 bash "$SYNC_SCRIPT"
    [ "$status" -eq 0 ]
    [ -f "$CONFIG_DIR/sync_pending" ]
}

@test "--execute fuehrt echten Sync durch und erstellt Backup" {
    run_with_stubs env SSH_STUB_FAIL=0 bash "$SYNC_SCRIPT" --execute
    [ "$status" -eq 0 ]
    [ -f "$HOME/.config/darktable/library.db.bak" ]
}

@test "-e ist Kurzform fuer --execute" {
    run_with_stubs env SSH_STUB_FAIL=0 bash "$SYNC_SCRIPT" -e
    [ "$status" -eq 0 ]
    [ -f "$HOME/.config/darktable/library.db.bak" ]
}

@test "Trockenlauf zeigt Ergebnis-Zusammenfassung" {
    run_with_stubs env SSH_STUB_FAIL=0 DRY_RUN_SKIP_CONFIRM=1 bash "$SYNC_SCRIPT"
    [ "$status" -eq 0 ]
    [[ "$output" == *"Trockenlauf-Ergebnis"* ]]
    [[ "$output" == *"Upload:"* ]]
    [[ "$output" == *"Download:"* ]]
}

@test "Trockenlauf zaehlt neue Dateien korrekt" {
    run_with_stubs env SSH_STUB_FAIL=0 DRY_RUN_SKIP_CONFIRM=1 \
        UNISON_STUB_DRY_LINES="new file ----> foto.jpg" bash "$SYNC_SCRIPT"
    [ "$status" -eq 0 ]
    [[ "$output" == *"neu"* ]]
}

# --- Backup-Verhalten ---

@test "Backup-Verzeichnisse werden bei echtem Sync angelegt" {
    run_with_stubs env SSH_STUB_FAIL=0 bash "$SYNC_SCRIPT" --execute
    [ "$status" -eq 0 ]
    [ -d "$HOME/Pictures-bak" ]
    [ -d "$HOME/.config/darktable-bak" ]
}

@test "Trockenlauf legt keine Backup-Verzeichnisse an" {
    run_with_stubs env SSH_STUB_FAIL=0 DRY_RUN_SKIP_CONFIRM=1 bash "$SYNC_SCRIPT"
    [ "$status" -eq 0 ]
    [ ! -d "$HOME/Pictures-bak" ]
    [ ! -d "$HOME/.config/darktable-bak" ]
}

@test "Upload bricht ab wenn Foto-Quellverzeichnis leer ist" {
    rm -f "$HOME/Pictures/"*
    run_with_stubs env SSH_STUB_FAIL=0 bash "$SYNC_SCRIPT" --execute
    [ "$status" -eq 1 ]
    [[ "$output" == *"leer"* ]]
    [ -f "$CONFIG_DIR/sync_pending" ]
}

@test "Trockenlauf-Ergebnis zeigt Backup-Hinweis bei Loeschungen" {
    run_with_stubs env SSH_STUB_FAIL=0 DRY_RUN_SKIP_CONFIRM=1 \
        UNISON_STUB_DRY_LINES="<---- deleted foto.jpg" bash "$SYNC_SCRIPT"
    [ "$status" -eq 0 ]
    [[ "$output" == *"Backup"* ]]
}

# --- Unison-spezifische Tests ---

@test "Unison-Versionsmismatch gibt Exit 1 und setzt sync_pending" {
    run_with_stubs env SSH_STUB_FAIL=0 \
        UNISON_SERVER_VERSION="unison version 2.51.0" DRY_RUN_SKIP_CONFIRM=1 \
        bash "$SYNC_SCRIPT"
    [ "$status" -eq 1 ]
    [ -f "$CONFIG_DIR/sync_pending" ]
}

@test "DB-Sync verwendet -force local bei Upload-Entscheidung" {
    echo "999" > "$CONFIG_DIR/sync_token"
    ARGS_FILE=$(mktemp)
    run_with_stubs env SSH_STUB_FAIL=0 UNISON_STUB_ARGS_FILE="$ARGS_FILE" \
        DARKTABLE_SYNC_CONFLICT_RESPONSE="upload" bash "$SYNC_SCRIPT" --execute
    grep -q -- "-force" "$ARGS_FILE" || grep -q -- "force" "$ARGS_FILE"
    rm -f "$ARGS_FILE"
}

@test "Foto-Sync verwendet -prefer newer ohne Konflikt" {
    ARGS_FILE=$(mktemp)
    run_with_stubs env SSH_STUB_FAIL=0 UNISON_STUB_ARGS_FILE="$ARGS_FILE" \
        bash "$SYNC_SCRIPT" --execute
    [ "$status" -eq 0 ]
    grep -q -- "-prefer" "$ARGS_FILE"
    rm -f "$ARGS_FILE"
}