#!/usr/bin/env bats
# Seam: scripts/jellyfin-providers.sh — the only mechanism that puts a
# metadata-provider key into Jellyfin's plugin configuration on Dankserver.
#
# Output vocabulary the tests depend on:
#   "+ <action>"    something this run will change
#   "= <fact>"      something already true, so nothing changes
#
# The contracts, in the order the seam tests them:
#   1. plan reports every action and never prints a key;
#   2. a secret file that is not mode 600 is refused by name and nothing is
#      written — a key readable by other users is an error, not a warning;
#   3. a downloaded plugin artifact is accepted only on its pinned sha256, its
#      official guid and its pinned version (a swapped or downgraded artifact
#      is refused before anything lands in plugins/);
#   4. the TMDb key is written into the EXISTING config with every other
#      setting preserved — Jellyfin owns that file, and clobbering it would
#      silently reset country, language and adult settings;
#   5. a TVDB config the operator already saved through the UI is kept;
#   6. install is idempotent: a second run changes no byte;
#   7. whatever is replaced is copied to the trash first (fleet law: never
#      overwrite without a recoverable copy);
#   8. verify answers whether the endpoint is configured, key LENGTH only;
#   9. no plugin configuration XML is tracked in git, the deployer places the
#      keys BEFORE it restarts Jellyfin, and the planner routes a change to this
#      installer to jellyfin.

load helpers

PROV="$REPO_ROOT/scripts/jellyfin-providers.sh"
TMDB_KEY="tmdbk3a9Zq7Rtestkey"
TVDB_KEY="tvdbk8b2Wt4Ptestkey"
GUID_OFFICIAL="a677c0da-fac5-4cde-941a-7134223f14c8"

# make_plugin <file> <guid> <version> — a zip shaped like the official TheTVDB
# artifact (meta.json + its two DLLs), so extraction is exercised for real.
make_plugin() {
    python3 - "$1" "$2" "$3" <<'PYEOF'
import json, sys, zipfile
path, guid, version = sys.argv[1], sys.argv[2], sys.argv[3]
meta = {
    "category": "MoviesAndShows",
    "guid": guid,
    "name": "TheTVDB",
    "owner": "jellyfin",
    "targetAbi": "12.0.0.0",
    "version": version,
}
with zipfile.ZipFile(path, "w") as z:
    z.writestr("meta.json", json.dumps(meta))
    z.writestr("Jellyfin.Plugin.Tvdb.dll", "dll-bytes")
    z.writestr("Tvdb.Sdk.dll", "dll-bytes")
PYEOF
    sha256sum "$1" | cut -d' ' -f1
}

setup() {
    JF="$BATS_TEST_TMPDIR/jf"
    TRASH="$BATS_TEST_TMPDIR/trash"
    SEC="$BATS_TEST_TMPDIR/secrets"
    mkdir -p "$JF/plugins/configurations" "$TRASH" "$SEC"
    cat >"$JF/plugins/configurations/Jellyfin.Plugin.Tmdb.xml" <<XML
<?xml version="1.0" encoding="utf-8"?>
<Configuration xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <MetadataCountryCode>US</MetadataCountryCode>
  <PreferOriginalLanguage />
  <Language>en</Language>
  <EnableCinematicForTrailers>false</EnableCinematicForTrailers>
  <IncludeAdult>false</IncludeAdult>
  <MaxCastMembers>25</MaxCastMembers>
  <AddGenresFromKeywords>true</AddGenresFromKeywords>
  <TmdbApiKey />
</Configuration>
XML
    KEYS="$SEC/provider-keys"
    printf 'TMDB_API_KEY=%s\nTVDB_API_KEY=%s\n' "$TMDB_KEY" "$TVDB_KEY" >"$KEYS"
    chmod 600 "$KEYS"
    ZIP="$BATS_TEST_TMPDIR/thetvdb.zip"
    PIN_SHA="$(make_plugin "$ZIP" "$GUID_OFFICIAL" 24.0.0.0)"
    PROV_ENV=(
        JF_ROOT="$JF"
        PROV_KEYS="$KEYS"
        TRASH_DIR="$TRASH"
        TVDB_PLUGIN_URL="file://$ZIP"
        TVDB_PLUGIN_SHA256="$PIN_SHA"
        TVDB_PLUGIN_GUID="$GUID_OFFICIAL"
        TVDB_PLUGIN_VERSION=24.0.0.0
    )
}

prov() { env "${PROV_ENV[@]}" bash "$PROV" "$@"; }

tree_fingerprint() { find "$JF" -type f | sort | xargs -r sha256sum | sha256sum; }

@test "plan names the plugin and both config files, and prints no key" {
    run prov plan
    [ "$status" -eq 0 ]
    printf '%s\n' "${lines[@]}" | grep -q '^+ install thetvdb_24\.0\.0\.0'
    printf '%s\n' "${lines[@]}" | grep -q '^+ set TmdbApiKey'
    printf '%s\n' "${lines[@]}" | grep -q '^+ create Jellyfin\.Plugin\.Tvdb\.xml'
    # The whole point of running this over a shoulder: a key never appears.
    ! printf '%s\n' "${lines[@]}" | grep -qF "$TMDB_KEY"
    ! printf '%s\n' "${lines[@]}" | grep -qF "$TVDB_KEY"
}

@test "plan writes nothing" {
    before="$(tree_fingerprint)"
    run prov plan
    [ "$status" -eq 0 ]
    [ "$(tree_fingerprint)" = "$before" ]
}

@test "an already-configured endpoint reports no pending action" {
    prov install >/dev/null
    run prov plan
    [ "$status" -eq 0 ]
    ! printf '%s\n' "${lines[@]}" | grep -q '^+ '
    printf '%s\n' "${lines[@]}" | grep -q '= thetvdb_24\.0\.0\.0 already installed'
    printf '%s\n' "${lines[@]}" | grep -q '= TmdbApiKey already set'
    printf '%s\n' "${lines[@]}" | grep -q '= Jellyfin\.Plugin\.Tvdb\.xml already has an ApiKey'
}

@test "a keys file that is not mode 600 is refused and nothing is written" {
    chmod 644 "$KEYS"
    before="$(tree_fingerprint)"
    run prov install
    [ "$status" -ne 0 ]
    printf '%s\n' "${lines[@]}" | grep -qF '600'
    [ "$(tree_fingerprint)" = "$before" ]
}

@test "a missing TVDB key is refused by name before anything is fetched" {
    printf 'TMDB_API_KEY=%s\n' "$TMDB_KEY" >"$KEYS"
    chmod 600 "$KEYS"
    run prov install
    [ "$status" -ne 0 ]
    printf '%s\n' "${lines[@]}" | grep -qF 'TVDB_API_KEY'
    [ ! -d "$JF/plugins/thetvdb_24.0.0.0" ]
}

@test "a root with no plugin directory is refused instead of fabricated" {
    # Creating plugins/ inside a wrong path would install a plugin Jellyfin
    # never loads, and would hide the operator's typo.
    run env "${PROV_ENV[@]}" JF_ROOT="$BATS_TEST_TMPDIR/nope" bash "$PROV" install
    [ "$status" -ne 0 ]
    [ ! -d "$BATS_TEST_TMPDIR/nope/plugins" ]
}

@test "an artifact whose sha256 is not the pinned one is refused" {
    run env "${PROV_ENV[@]}" TVDB_PLUGIN_SHA256="$(printf 'f%.0s' {1..64})" \
        bash "$PROV" install
    [ "$status" -ne 0 ]
    printf '%s\n' "${lines[@]}" | grep -qiF 'sha256'
    [ ! -d "$JF/plugins/thetvdb_24.0.0.0" ]
}

@test "an artifact that is not the official TVDB plugin is refused" {
    # A matching sha proves only that the bytes are the bytes we fetched.
    EVIL="$BATS_TEST_TMPDIR/evil.zip"
    EVIL_SHA="$(make_plugin "$EVIL" "deadbeef-0000-0000-0000-000000000000" 24.0.0.0)"
    run env "${PROV_ENV[@]}" TVDB_PLUGIN_URL="file://$EVIL" TVDB_PLUGIN_SHA256="$EVIL_SHA" \
        bash "$PROV" install
    [ "$status" -ne 0 ]
    printf '%s\n' "${lines[@]}" | grep -qiF 'guid'
    [ ! -d "$JF/plugins/thetvdb_24.0.0.0" ]
}

@test "an artifact that is not the pinned version is refused" {
    OLD="$BATS_TEST_TMPDIR/old.zip"
    OLD_SHA="$(make_plugin "$OLD" "$GUID_OFFICIAL" 22.0.0.0)"
    run env "${PROV_ENV[@]}" TVDB_PLUGIN_URL="file://$OLD" TVDB_PLUGIN_SHA256="$OLD_SHA" \
        bash "$PROV" install
    [ "$status" -ne 0 ]
    printf '%s\n' "${lines[@]}" | grep -qiF 'version'
    [ ! -d "$JF/plugins/thetvdb_24.0.0.0" ]
}

@test "a different plugin version already in plugins/ is refused, not doubled" {
    # Two thetvdb_* directories means Jellyfin loads one plugin twice; the
    # operator removes the old one (into the trash) deliberately, not by an
    # installer quietly adding a second.
    prov install >/dev/null
    OLD="$BATS_TEST_TMPDIR/old.zip"
    OLD_SHA="$(make_plugin "$OLD" "$GUID_OFFICIAL" 22.0.0.0)"
    run env "${PROV_ENV[@]}" TVDB_PLUGIN_URL="file://$OLD" TVDB_PLUGIN_SHA256="$OLD_SHA" \
        TVDB_PLUGIN_VERSION=22.0.0.0 bash "$PROV" install
    [ "$status" -ne 0 ]
    printf '%s\n' "${lines[@]}" | grep -qF 'thetvdb_24.0.0.0'
    [ ! -d "$JF/plugins/thetvdb_22.0.0.0" ]
}

@test "install places the plugin, keys TMDb, and preserves every other setting" {
    run prov install
    [ "$status" -eq 0 ]
    ! printf '%s\n' "${lines[@]}" | grep -qF "$TMDB_KEY"
    ! printf '%s\n' "${lines[@]}" | grep -qF "$TVDB_KEY"
    [ -f "$JF/plugins/thetvdb_24.0.0.0/meta.json" ]
    [ -f "$JF/plugins/thetvdb_24.0.0.0/Jellyfin.Plugin.Tvdb.dll" ]
    local cfg="$JF/plugins/configurations/Jellyfin.Plugin.Tmdb.xml"
    # Jellyfin owns this file: the settings it wrote must survive the edit.
    for setting in MetadataCountryCode Language IncludeAdult MaxCastMembers AddGenresFromKeywords; do
        grep -qF "<$setting>" "$cfg" || {
            echo "lost $setting"
            return 1
        }
    done
    grep -qF '<IncludeAdult>false</IncludeAdult>' "$cfg"
    grep -qF "<TmdbApiKey>$TMDB_KEY</TmdbApiKey>" "$cfg"
    grep -qF "<ApiKey>$TVDB_KEY</ApiKey>" "$JF/plugins/configurations/Jellyfin.Plugin.Tvdb.xml"
}

@test "a TVDB config the operator saved through the UI is kept" {
    cat >"$JF/plugins/configurations/Jellyfin.Plugin.Tvdb.xml" <<XML
<?xml version="1.0" encoding="utf-8"?>
<Configuration xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema">
  <ApiKey>ui-saved-key</ApiKey>
  <EnableSeasonPathMatching>true</EnableSeasonPathMatching>
</Configuration>
XML
    run prov install
    [ "$status" -eq 0 ]
    printf '%s\n' "${lines[@]}" | grep -qiF 'kept'
    local cfg="$JF/plugins/configurations/Jellyfin.Plugin.Tvdb.xml"
    grep -qF '<ApiKey>ui-saved-key</ApiKey>' "$cfg"
    grep -qF '<EnableSeasonPathMatching>true</EnableSeasonPathMatching>' "$cfg"
}

@test "a pin in the TVDB secret lands in the plugin config" {
    # A subscriber-shaped key needs the account's PIN beside it; a licensed key
    # does not, so the element appears only when the secret carries one.
    printf 'TMDB_API_KEY=%s\nTVDB_API_KEY=%s\nTVDB_PIN=123456\n' "$TMDB_KEY" "$TVDB_KEY" >"$KEYS"
    chmod 600 "$KEYS"
    prov install >/dev/null
    grep -qF '<Pin>123456</Pin>' "$JF/plugins/configurations/Jellyfin.Plugin.Tvdb.xml"
}

@test "install is idempotent: a second run changes no byte" {
    prov install >/dev/null
    before="$(tree_fingerprint)"
    run prov install
    [ "$status" -eq 0 ]
    [ "$(tree_fingerprint)" = "$before" ]
    printf '%s\n' "${lines[@]}" | grep -qiF 'no change'
    # One plugin directory only: two versions in plugins/ means two loads.
    [ "$(find "$JF/plugins" -maxdepth 1 -type d -name 'thetvdb_*' | wc -l)" -eq 1 ]
}

@test "what install replaces is copied to the trash first" {
    prov install >/dev/null
    # The TMDb config existed before this tool touched it, so the pre-edit copy
    # must stay recoverable.
    [ -n "$(find "$TRASH" -name 'Jellyfin.Plugin.Tmdb.xml*' -print -quit)" ]
    grep -qF '<TmdbApiKey />' "$(find "$TRASH" -name 'Jellyfin.Plugin.Tmdb.xml*' | head -1)"
}

@test "verify refuses an unconfigured endpoint and names what is missing" {
    run prov verify
    [ "$status" -ne 0 ]
    printf '%s\n' "${lines[@]}" | grep -qiF 'thetvdb'
    printf '%s\n' "${lines[@]}" | grep -qiF 'TmdbApiKey'
}

@test "verify passes once the plugin and both keys are in place" {
    prov install >/dev/null
    run prov verify
    [ "$status" -eq 0 ]
    ! printf '%s\n' "${lines[@]}" | grep -qF "$TMDB_KEY"
    ! printf '%s\n' "${lines[@]}" | grep -qF "$TVDB_KEY"
    # Length, not bytes: the operator sees the key loaded without reading it.
    printf '%s\n' "${lines[@]}" | grep -qE 'TmdbApiKey .*[0-9]+ chars'
}

@test "no plugin configuration XML is tracked in this repo" {
    # These files hold provider keys and are owned by the running container;
    # tracking them would put credentials in git and guarantee drift.
    run git -C "$REPO_ROOT" ls-files
    [ "$status" -eq 0 ]
    ! printf '%s\n' "${lines[@]}" | grep -qF 'plugins/configurations'
    ! printf '%s\n' "${lines[@]}" | grep -qiF 'Plugin.Tvdb.xml'
}

@test "the planner routes this installer to jellyfin" {
    run python3 "$REPO_ROOT/scripts/deploy-plan.py" --target dankserver \
        --paths scripts/jellyfin-providers.sh
    [ "$status" -eq 0 ]
    [ "$output" = "jellyfin" ]
}

@test "the deployer places the keys before it restarts jellyfin" {
    # The plugin and both keys are read at start-up, so a restart that runs
    # ahead of the placement boots the old, keyless state.
    body="$(sed -n '/^deploy_jellyfin()/,/^\}/p' "$REPO_ROOT/scripts/deploy-remote.sh")"
    [ -n "$body" ]
    up="$(printf '%s\n' "$body" | grep -n 'ensure_provider_keys' | head -1 | cut -d: -f1)"
    restart="$(printf '%s\n' "$body" | grep -n 'systemctl --user restart jellyfin.service' | head -1 | cut -d: -f1)"
    [ "${up:-999}" -lt "${restart:-0}" ]
}