//! Contract tests for server install-time operational defaults.
//!
//! Scope: statically guard the generated `/etc/lesavka/server.env` values.
//! Targets: `scripts/install/server.sh`.
//! Why: HDMI capture adapter settings should be reproducible after reboot or
//! reinstall instead of living as one-off shell state.

const SERVER_INSTALL: &str = include_str!("../../scripts/install/server.sh");

#[test]
fn server_install_pins_hdmi_camera_and_display_defaults() {
    for expected in [
        "LESAVKA_CAM_OUTPUT=%s",
        "LESAVKA_CAM_WIDTH=%s",
        "LESAVKA_CAM_HEIGHT=%s",
        "LESAVKA_CAM_FPS=%s",
        "LESAVKA_HDMI_WIDTH=%s",
        "LESAVKA_HDMI_HEIGHT=%s",
        "LESAVKA_HDMI_SINK=%s",
        "LESAVKA_HDMI_FBDEV=%s",
        "LESAVKA_UPSTREAM_PLAYOUT_DELAY_MS=%s",
        "LESAVKA_UPSTREAM_MAX_LIVE_LAG_MS=%s",
        "LESAVKA_UPSTREAM_STARTUP_TIMEOUT_MS=%s",
        "LESAVKA_UPSTREAM_AUDIO_PLAYOUT_OFFSET_US=%s",
        "LESAVKA_UPSTREAM_VIDEO_PLAYOUT_OFFSET_US=%s",
        "LESAVKA_UPSTREAM_PAIR_SLACK_US=%s",
        "LESAVKA_UPSTREAM_AUDIO_MASTER_WAIT_GRACE_MS=%s",
        "LESAVKA_UPSTREAM_STALE_DROP_MS=%s",
        "LESAVKA_SERVER_BIND_ADDR=%s",
        "/etc/lesavka/uvc.env",
        "LESAVKA_UVC_MAXPACKET=",
        "LESAVKA_UVC_INTERVAL=",
        "LESAVKA_UVC_WIDTH=",
        "LESAVKA_UVC_HEIGHT=",
        "LESAVKA_UVC_CODEC=",
        "LESAVKA_UVC_CONTROL_READ_ONLY=",
        "LESAVKA_REQUIRE_TLS=%s",
        "LESAVKA_TLS_CERT=%s",
        "LESAVKA_TLS_KEY=%s",
        "LESAVKA_TLS_CLIENT_CA=%s",
    ] {
        assert!(
            SERVER_INSTALL.contains(expected),
            "install script should emit {expected}"
        );
    }
    assert!(SERVER_INSTALL.contains("${LESAVKA_CAM_WIDTH:-1920}"));
    assert!(SERVER_INSTALL.contains("${LESAVKA_CAM_HEIGHT:-1080}"));
    assert!(SERVER_INSTALL.contains("${LESAVKA_CAM_FPS:-30}"));
    assert!(SERVER_INSTALL.contains("${LESAVKA_INSTALL_CAM_OUTPUT:-uvc}"));
    assert!(SERVER_INSTALL.contains("${LESAVKA_INSTALL_UVC_CODEC:-mjpeg}"));
    assert!(SERVER_INSTALL.contains("${LESAVKA_HDMI_WIDTH:-1920}"));
    assert!(SERVER_INSTALL.contains("${LESAVKA_HDMI_HEIGHT:-1080}"));
    assert!(SERVER_INSTALL.contains("${LESAVKA_HDMI_SINK:-fbdevsink}"));
    assert!(SERVER_INSTALL.contains("${LESAVKA_UPSTREAM_PLAYOUT_DELAY_MS:-350}"));
    assert!(SERVER_INSTALL.contains("${LESAVKA_UPSTREAM_MAX_LIVE_LAG_MS:-1000}"));
    assert!(SERVER_INSTALL.contains("${LESAVKA_UPSTREAM_STARTUP_TIMEOUT_MS:-60000}"));
    assert!(SERVER_INSTALL.contains("DEFAULT_MJPEG_UPSTREAM_AUDIO_PLAYOUT_OFFSET_US=0"));
    assert!(SERVER_INSTALL.contains("DEFAULT_MJPEG_UPSTREAM_VIDEO_PLAYOUT_OFFSET_US=1090000"));
    assert!(
        SERVER_INSTALL.contains("resolve_upstream_video_playout_offset_us"),
        "video offset should be resolved through stale-baseline migration logic"
    );
    assert!(SERVER_INSTALL.contains("LEGACY_MJPEG_UPSTREAM_AUDIO_PLAYOUT_OFFSET_US=-45000"));
    assert!(
        SERVER_INSTALL.contains("PREVIOUS_TUNED_MJPEG_UPSTREAM_AUDIO_PLAYOUT_OFFSET_US=1260000")
    );
    assert!(SERVER_INSTALL.contains("PREVIOUS_ZERO_MJPEG_UPSTREAM_VIDEO_PLAYOUT_OFFSET_US=0"));
    assert!(
        SERVER_INSTALL.contains("PREVIOUS_DELAYED_MJPEG_UPSTREAM_VIDEO_PLAYOUT_OFFSET_US=350000")
    );
    assert!(
        SERVER_INSTALL.contains("PREVIOUS_BROWSER_MJPEG_UPSTREAM_VIDEO_PLAYOUT_OFFSET_US=130000")
    );
    assert!(
        SERVER_INSTALL.contains("LESAVKA_INSTALL_UPSTREAM_AUDIO_PLAYOUT_OFFSET_US"),
        "install-specific offset override should bypass stale ambient runtime env"
    );
    assert!(
        SERVER_INSTALL.contains("LESAVKA_INSTALL_UPSTREAM_VIDEO_PLAYOUT_OFFSET_US"),
        "install-specific video offset override should bypass stale ambient runtime env"
    );
    assert!(
        SERVER_INSTALL.contains("migrating stale upstream audio playout offset to the 0.17 freshness-first planner default"),
        "installer should not preserve old MJPEG/UVC sync baselines accidentally"
    );
    assert!(
        SERVER_INSTALL.contains("migrating stale upstream video playout offset to the 0.17 browser-visible MJPEG/UVC sync baseline"),
        "installer should not preserve old video delay baselines accidentally"
    );
    assert!(SERVER_INSTALL.contains("${LESAVKA_UPSTREAM_PAIR_SLACK_US:-80000}"));
    assert!(SERVER_INSTALL.contains("${LESAVKA_UPSTREAM_AUDIO_MASTER_WAIT_GRACE_MS:-350}"));
    assert!(SERVER_INSTALL.contains("${LESAVKA_UPSTREAM_STALE_DROP_MS:-80}"));
    assert!(SERVER_INSTALL.contains("${LESAVKA_INSTALL_SERVER_BIND_ADDR:-0.0.0.0:50051}"));
    assert!(SERVER_INSTALL.contains("${LESAVKA_UVC_MAXPACKET:-1024}"));
    assert!(SERVER_INSTALL.contains("${LESAVKA_UVC_INTERVAL:-333333}"));
    assert!(SERVER_INSTALL.contains("${LESAVKA_UVC_WIDTH:-1280}"));
    assert!(SERVER_INSTALL.contains("${LESAVKA_UVC_HEIGHT:-720}"));
    assert!(SERVER_INSTALL.contains("${LESAVKA_UVC_CONTROL_READ_ONLY:-0}"));
    assert!(
        !SERVER_INSTALL.contains("LESAVKA_UVC_CODEC=${LESAVKA_UVC_CODEC:-mjpeg}"),
        "install script should not let ambient LESAVKA_UVC_CODEC leak into persisted defaults"
    );
    assert!(
        !SERVER_INSTALL
            .contains("LESAVKA_SERVER_BIND_ADDR=${LESAVKA_SERVER_BIND_ADDR:-0.0.0.0:50051}"),
        "install script should not let ambient LESAVKA_SERVER_BIND_ADDR leak into persisted defaults"
    );
    assert!(
        SERVER_INSTALL.contains("EnvironmentFile=-/etc/lesavka/uvc.env"),
        "install script should feed live UVC runtime settings into services"
    );
    assert!(
        !SERVER_INSTALL.contains("Environment=LESAVKA_UVC_CODEC=mjpeg"),
        "install script should not pin UVC codec to mjpeg in the systemd units"
    );
    assert!(
        SERVER_INSTALL.contains("LESAVKA_UVC_FALLBACK=0"),
        "forced gadget rebuilds should fail loud instead of silently dropping UVC"
    );
    assert!(
        SERVER_INSTALL.contains("validate_uvc_gadget_ready"),
        "install script should verify that the UVC gadget comes back before declaring success"
    );
    assert!(
        SERVER_INSTALL.contains("uvc_gadget_present"),
        "install script should detect when the live gadget is missing the expected UVC function"
    );
    assert!(
        SERVER_INSTALL.contains(
            "UVC function is missing from the live gadget; forcing a rebuild before server start."
        ),
        "install script should force a rebuild when the live gadget is attached but missing UVC"
    );
    assert!(
        SERVER_INSTALL.contains("lesavka-core gadget rebuilt directly."),
        "install script should trust the direct forced rebuild instead of immediately rerunning the oneshot core unit"
    );
    assert!(
        SERVER_INSTALL.contains("LESAVKA_FORCE_GADGET_REBUILD"),
        "install script should require an explicit force knob for attached-host gadget rebuilds"
    );
    assert!(
        SERVER_INSTALL.contains("EXPLICIT_GADGET_REBUILD=1"),
        "installer should distinguish organic rebuild needs from an explicit operator hard-reset request"
    );
    assert!(
        SERVER_INSTALL.contains("[[ \"$EXPLICIT_GADGET_REBUILD\" != \"1\" ]] || [[ -z ${LESAVKA_ALLOW_GADGET_RESET:-} ]]"),
        "attached-host hard rebuilds should require both allow and explicit force flags"
    );
    assert!(
        SERVER_INSTALL.contains("no hard gadget rebuild is needed"),
        "LESAVKA_ALLOW_GADGET_RESET should permit recovery without causing unconditional hard rebuilds"
    );
    assert!(
        !SERVER_INSTALL.contains(
            "[[ -n ${LESAVKA_ALLOW_GADGET_RESET:-} ]] || [[ \"$FORCE_GADGET_REBUILD\" == \"1\" ]]"
        ),
        "LESAVKA_ALLOW_GADGET_RESET must not itself trigger a hard UDC detach/rebind"
    );
    assert!(
        !SERVER_INSTALL.contains("LESAVKA_RELOAD_UVCVIDEO=1"),
        "install script should not unload/reload uvcvideo during ordinary server installs"
    );
    assert!(
        SERVER_INSTALL.contains("sudo systemctl stop lesavka-uvc"),
        "install script should stop the UVC helper before directly rebuilding the gadget underneath it"
    );
    assert!(
        !SERVER_INSTALL.contains("sudo systemctl restart lesavka-core"),
        "install script should not immediately rerun lesavka-core after a successful direct forced rebuild"
    );
    assert!(
        SERVER_INSTALL.contains("video-output node did not appear after rebuild"),
        "install script should explain why it refuses a half-applied UVC install"
    );
    assert!(
        !SERVER_INSTALL.contains("RefuseManualStop=yes"),
        "install script should not generate a UVC unit that blocks legitimate refreshes"
    );
    assert!(
        SERVER_INSTALL.contains("KillMode=control-group"),
        "install script should stop the whole UVC helper cgroup instead of leaving child processes behind"
    );
    assert!(
        !SERVER_INSTALL.contains("KillMode=process"),
        "install script should not leave the server or helper units in process-only kill mode"
    );
    assert!(
        SERVER_INSTALL.contains("lesavka-uvc already active; runtime settings unchanged."),
        "install script should avoid unnecessary UVC restarts when nothing changed"
    );
    assert!(
        SERVER_INSTALL.contains("sudo systemctl start lesavka-uvc"),
        "install script should start the UVC helper so the host enumerates the UVC function"
    );
    assert!(
        SERVER_INSTALL.contains("lesavka-uvc started to attach the UVC gadget to the host."),
        "install script should report when it starts the UVC helper for enumeration"
    );
    assert!(
        SERVER_INSTALL.contains("Wants=lesavka-uvc.service"),
        "server unit should pull in the external UVC helper on UVC installs"
    );
    assert!(
        !SERVER_INSTALL.contains("Environment=LESAVKA_ALLOW_GADGET_CYCLE=1"),
        "server unit should not auto-cycle the gadget while the external UVC helper owns it"
    );
    assert!(
        SERVER_INSTALL.contains("/var/log/lesavka/server.log"),
        "install script should keep server logs out of sticky /tmp"
    );
    assert!(
        SERVER_INSTALL.contains("LESAVKA_SERVER_LOG_PATH=/var/log/lesavka/server.log"),
        "server unit should point tracing at the non-sticky log path"
    );
    assert!(
        SERVER_INSTALL.contains("clear_stale_server_listener"),
        "install script should clear stale server listeners before restart"
    );
    assert!(
        SERVER_INSTALL.contains("lsof -tiTCP:"),
        "install script should inspect the bind port before starting a fresh server"
    );
    assert!(
        SERVER_INSTALL.contains("/proc/net/tcp"),
        "install script should fall back to procfs listener detection when lsof misses the owner"
    );
    assert!(
        SERVER_INSTALL.contains("socket:["),
        "install script should map listening socket inodes back to owning PIDs"
    );
    assert!(
        SERVER_INSTALL.contains("ss -K state connected"),
        "install script should clear hidden connected socket state before retrying the server port"
    );
    assert!(
        SERVER_INSTALL.contains("ss -K state listening"),
        "install script should ask the kernel to drop a hidden listening socket when no PID is visible"
    );
    assert!(
        SERVER_INSTALL.contains("list_server_bound_inactive_lines"),
        "install script should check for sockets that remain bound after listener teardown"
    );
    assert!(
        SERVER_INSTALL.contains("bound-inactive tcp sockets"),
        "install script should explain when a hidden socket stops listening but still blocks the port"
    );
    assert!(
        SERVER_INSTALL.contains("unexpected process"),
        "install script should fail loud instead of killing an unrelated process on the server port"
    );
    assert!(
        SERVER_INSTALL.contains("kernel dropped the hidden TCP"),
        "install script should report when kernel-level stale-socket cleanup succeeds"
    );
    assert!(
        SERVER_INSTALL.contains("no owning PID could be identified"),
        "install script should fail loud when a port is listening but procfs cannot identify the owner"
    );
    assert!(
        SERVER_INSTALL.contains("validate_server_ready"),
        "install script should verify that lesavka-server reaches a running state"
    );
    assert!(
        SERVER_INSTALL.contains("edid_bytes=$(wc -c <\"$dev/edid\""),
        "HDMI auto-detection should count real EDID bytes instead of trusting sysfs file size"
    );
    assert!(
        SERVER_INSTALL.contains("(( edid_bytes > 0 ))"),
        "HDMI auto-detection should prefer a connector with real EDID over a boot-forced phantom connection"
    );
    assert!(
        SERVER_INSTALL.contains("preserving existing LESAVKA_HDMI_CONNECTOR"),
        "HDMI auto-detection should preserve the prior connector when physical evidence is still tied"
    );
    assert!(
        SERVER_INSTALL.contains("edid=%sB"),
        "ambiguous HDMI diagnostics should show EDID evidence for operator debugging"
    );
    assert!(
        SERVER_INSTALL.contains("active and listening"),
        "install script should require the TCP listener before declaring server readiness"
    );
    assert!(
        SERVER_INSTALL.contains("did not open TCP"),
        "install script should explain active-but-not-listening server failures"
    );
    assert!(
        SERVER_INSTALL.contains("failed to reach active/running state"),
        "install script should explain server startup failures instead of claiming success"
    );
}

#[test]
fn server_install_generates_mtls_identity_and_client_bundle() {
    for expected in [
        "ensure_server_tls_pki",
        "openssl genrsa",
        "extendedKeyUsage = serverAuth",
        "extendedKeyUsage = clientAuth",
        "LESAVKA_CLIENT_BUNDLE",
        "lesavka-client-pki.tar.gz",
        "Client TLS bundle:",
        "Client install can use:",
        "sudo chown \"$ORIG_USER\":\"$ORIG_USER\" \"$LESAVKA_CLIENT_BUNDLE\"",
        "LESAVKA_REQUIRE_TLS=%s",
        "LESAVKA_TLS_CLIENT_CA=%s",
    ] {
        assert!(
            SERVER_INSTALL.contains(expected),
            "server install script should include TLS/mTLS contract fragment {expected}"
        );
    }
    assert!(
        SERVER_INSTALL.contains("LESAVKA_REQUIRE_TLS:-1"),
        "installed servers should require TLS by default"
    );
    assert!(
        SERVER_INSTALL.contains("38.28.125.112"),
        "server cert SAN defaults should include the current public relay endpoint"
    );
}

#[test]
fn server_install_reports_installed_version_and_revision() {
    assert!(
        SERVER_INSTALL.contains("Installed:"),
        "install script should print the installed build identity at the end"
    );
    assert!(
        SERVER_INSTALL.contains("manifest_package_version"),
        "install script should read the package version from the synced source manifest"
    );
    assert!(
        SERVER_INSTALL.contains("\"$SRC_DIR/server/Cargo.toml\""),
        "install script should report the server package semver from the server manifest"
    );
    assert!(
        SERVER_INSTALL.contains("git -C \"$SCRIPT_REPO_ROOT\" rev-parse --short HEAD"),
        "install script should print the installed git revision for operator clarity"
    );
    assert!(
        SERVER_INSTALL.contains("Camera output:"),
        "install script should print the persisted camera output in the footer"
    );
    assert!(
        SERVER_INSTALL.contains("Server bind:"),
        "install script should print the persisted server bind address in the footer"
    );
    assert!(
        SERVER_INSTALL.contains("UVC codec:"),
        "install script should print the persisted UVC codec in the footer"
    );
}

#[test]
fn server_install_keeps_uac_sanity_helper_available() {
    assert!(
        SERVER_INSTALL.contains("run_uac_output_sanity.sh"),
        "install script should ship the root UAC sanity helper"
    );
    assert!(
        SERVER_INSTALL.contains("/usr/local/bin/lesavka-uac-sanity"),
        "install script should install the UAC sanity helper to a stable path"
    );
}

#[test]
fn server_install_grants_operator_audio_group_access() {
    assert!(
        SERVER_INSTALL.contains("usermod -aG audio"),
        "install script should grant the invoking operator access to ALSA devices"
    );
    assert!(
        SERVER_INSTALL.contains("SUDO_USER"),
        "install script should target the sudo-invoking operator instead of a hard-coded account"
    );
}

#[test]
fn server_install_builds_eye_links_from_capture_nodes_only() {
    assert!(
        SERVER_INSTALL.contains("/sys/class/video4linux/$(basename \"$dev\")/index"),
        "install script should inspect the kernel video index so it only links real capture nodes"
    );
    assert!(
        SERVER_INSTALL.contains("GC_CAPTURE_PAIRS"),
        "install script should assemble eye-link candidates from udev-tagged capture devices"
    );
    assert!(
        SERVER_INSTALL.contains("discover_gc_capture_pairs"),
        "install script should retry capture-node discovery instead of trusting a single early snapshot"
    );
    assert!(
        SERVER_INSTALL.contains("for _ in {1..20}; do"),
        "install script should wait briefly for both GC311 capture nodes to finish enumerating"
    );
    assert!(
        SERVER_INSTALL.contains("borrowing relay GPIO power for capture discovery"),
        "install script should temporarily power capture cards for discovery when relay GPIO is available"
    );
    assert!(
        SERVER_INSTALL.contains("returning relay GPIO power control to Lesavka auto mode"),
        "install script should restore relay power control after capture discovery"
    );
    assert!(
        SERVER_INSTALL.contains("trap restore_capture_power_after_discovery EXIT"),
        "install script should restore borrowed capture power even if discovery exits early"
    );
    assert!(
        SERVER_INSTALL.contains("[ \"$LEFT_TAG\" = \"$RIGHT_TAG\" ]"),
        "install script should refuse duplicated path tags instead of assigning both eyes to one card"
    );
}