. "$BST_LIB"
require zip zip/present

# Info-ZIP Zip 3.0: -v with no archive prints the version/compile banner.
check_out zip/version "This is Zip 3.0" sh -c "zip -v 2>&1"

tmp=${TMPDIR:-/tmp}/bst-zip.$$
line="the quick brown fox jumps over the lazy dog 0123456789"
mkdir "$tmp" 2>/dev/null
i=0
while [ $i -lt 16 ]; do printf "%s\n" "$line"; i=$((i+1)); done > "$tmp/a.txt" 2>/dev/null
printf "second member\n" > "$tmp/b.txt" 2>/dev/null

# create a two-member archive (deflate default)
check     zip/create sh -c "cd '$tmp' && zip -q ar.zip a.txt b.txt"
# real ZIP container: local-file-header magic PK\003\004
check_out zip/magic "50 4b 03 04" sh -c "od -An -tx1 -N4 '$tmp/ar.zip'"
# -sf (show files) lists the members without extraction
check_out zip/list-a "a.txt" sh -c "cd '$tmp' && zip -sf ar.zip"
check_out zip/list-b "b.txt" sh -c "cd '$tmp' && zip -sf ar.zip"
# grow the archive in place (temp-archive + rename-over path)
printf "third member\n" > "$tmp/c.txt" 2>/dev/null
check_out zip/add "c.txt" sh -c "cd '$tmp' && zip -q ar.zip c.txt && zip -sf ar.zip"
# delete a member in place; -sf must no longer show it
check zip/delete sh -c "cd '$tmp' && zip -qd ar.zip b.txt && ! zip -sf ar.zip | grep -q b.txt"
# store mode (-0): member bytes land verbatim, so the original text is greppable
# in the archive itself -- a content check needing no unzip (not in this image)
check zip/store-content sh -c "cd '$tmp' && zip -q -0 st.zip a.txt && grep -qa '$line' st.zip"
# extraction roundtrip via the busybox unzip applet (Info-ZIP unzip is not in
# the image): the deflated member extracts back to the original text
check_out zip/roundtrip "$line" sh -c "cd '$tmp' && unzip -p ar.zip a.txt"
# zipnote (ships with zip) reads the archive structure back
check_out zip/zipnote "@ a.txt" sh -c "cd '$tmp' && zipnote ar.zip"

rm -rf "$tmp"