#!/usr/bin/env bats

load 'libs/bats-support/load'
load 'libs/bats-assert/load'
load 'helpers/common'

SCRIPT="$REPO_ROOT/zip_images_resize_recursive.sh"

setup() {
    setup_mock_env
}

teardown() {
    teardown_mock_env
}

@test "errors when argument is not a directory" {
    run "$SCRIPT" /nonexistent/path
    assert_failure
    assert_output --partial "Error:"
}

@test "defaults to current directory when no argument given" {
    make_zip "$TEST_WORKDIR/archive.zip" "$FIXTURES/unprocessed.jpg"
    run bash -c "cd '$TEST_WORKDIR' && '$SCRIPT'"
    assert_success
    assert_output --partial "Resized"
}

@test "processes all ZIPs in a flat directory" {
    make_zip "$TEST_WORKDIR/a.zip" "$FIXTURES/unprocessed.jpg"
    make_zip "$TEST_WORKDIR/b.zip" "$FIXTURES/unprocessed.jpg"
    run "$SCRIPT" "$TEST_WORKDIR"
    assert_success
    assert_equal "$(grep -c 'Resized' <<<"$output")" "2"
}

@test "skips already-processed ZIPs in a flat directory" {
    make_zip "$TEST_WORKDIR/done.zip" "$FIXTURES/processed.jpg"
    make_zip "$TEST_WORKDIR/todo.zip" "$FIXTURES/unprocessed.jpg"
    run "$SCRIPT" "$TEST_WORKDIR"
    assert_success
    assert_output --partial "Skipping"
    assert_output --partial "Resized"
}

@test "finds ZIPs recursively in subdirectories" {
    mkdir -p "$TEST_WORKDIR/sub/deep"
    make_zip "$TEST_WORKDIR/sub/a.zip"      "$FIXTURES/unprocessed.jpg"
    make_zip "$TEST_WORKDIR/sub/deep/b.zip" "$FIXTURES/unprocessed.jpg"
    run "$SCRIPT" "$TEST_WORKDIR"
    assert_success
    assert_equal "$(grep -c 'Resized' <<<"$output")" "2"
}

@test "processes ZIPs in descending size order" {
    # Create ZIPs of different sizes by varying image dimensions
    local small medium large
    small="$TEST_WORKDIR/small.zip"
    medium="$TEST_WORKDIR/medium.zip"
    large="$TEST_WORKDIR/large.zip"

    convert -size 50x50   xc:gray "$TEST_WORKDIR/s.jpg"
    convert -size 100x100 xc:gray "$TEST_WORKDIR/m.jpg"
    convert -size 200x200 xc:gray "$TEST_WORKDIR/l.jpg"
    (cd "$TEST_WORKDIR" && zip -q small.zip  s.jpg)
    (cd "$TEST_WORKDIR" && zip -q medium.zip m.jpg)
    (cd "$TEST_WORKDIR" && zip -q large.zip  l.jpg)

    run "$SCRIPT" "$TEST_WORKDIR"
    assert_success

    # Extract the order ZIPs were processed from the output
    local order
    order=$(grep 'Processing file' <<<"$output" | grep -o '[a-z]*.zip' | tr '\n' ' ')
    assert_equal "$order" "large.zip medium.zip small.zip "
}

@test "no temp files left in /dev/shm after recursive run" {
    make_zip "$TEST_WORKDIR/a.zip" "$FIXTURES/unprocessed.jpg"
    make_zip "$TEST_WORKDIR/b.zip" "$FIXTURES/processed.jpg"
    local before after
    before=$(find /dev/shm -maxdepth 1 -name 'tmp.*' | sort)
    run "$SCRIPT" "$TEST_WORKDIR"
    after=$(find /dev/shm -maxdepth 1 -name 'tmp.*' | sort)
    assert_equal "$before" "$after"
}