#!/usr/bin/env bats
# Bats tests for scripts/proxmox/lxc-clone.sh (praxis CT clone).
#
# Run: bats scripts/proxmox/test/lxc-clone.bats
#
# lxc-clone.sh creates a CT from a template via POST /nodes/{node}/lxc
# (create-from-template), then polls the returned UPID. These tests
# exercise the real lxc-clone.sh with a mocked api.sh (pve_curl records
# its argv to $CALL_LOG then returns STUB_UPID; pve_poll records the
# UPID) so the POST body shape + UPID-poll + empty-UPID error path are
# verified without a live Proxmox endpoint.
#
# Praxis v0.2 (vs coreci) key differences asserted here:
#   - hostname defaults to "praxis" (NOT "coreci")
#   - memory defaults to 4096 (NOT 2048)
#   - rootfs is <storage>:16 (NOT <storage>:8)
#   - features=nesting=1, net0=name=eth0,bridge=vmbr0,ip=dhcp

setup() {
    SCRIPT_DIR="$(cd "$(dirname "$BATS_TEST_FILENAME")/.." && pwd)"
    CLONE="${SCRIPT_DIR}/lxc-clone.sh"

    STUB_DIR="$(mktemp -d)"
    export STUB_DIR
    LOG="${STUB_DIR}/calls.log"
    export CALL_LOG="$LOG"
    : > "$LOG" 2>/dev/null || true

    # Sandbox: <ROOT>/lxc-clone.sh (SCRIPT_DIR) + <ROOT>/api.sh (sourced).
    ROOT="${STUB_DIR}/root"
    mkdir -p "$ROOT"
    cp "$CLONE" "${ROOT}/lxc-clone.sh"

    # Mocked api.sh — pve_env no-op; pve_curl records method + path +
    # every form-data pair to $CALL_LOG then returns STUB_UPID; pve_poll
    # records the UPID it was asked to wait on.
    cat > "${ROOT}/api.sh" <<'ASTUB'
pve_env() { :; }
pve_curl() {
    method="$1"; path="$2"; shift 2
    printf '%s\n' "${method} ${path} $*" >> "$CALL_LOG"
    printf '%s\n' "${STUB_UPID:-null}"
}
pve_poll() {
    printf 'poll:%s\n' "$1" >> "$CALL_LOG"
}
pve_tls_insecure() { :; }
pve_auth_header() { :; }
ASTUB

    chmod +x "${ROOT}"/*.sh

    export PROXMOX_API_URL="https://proxmox.test:8006/api2/json"
    export PROXMOX_API_TOKEN="root@pam!test=secret"
    export PROXMOX_NODE="testnode"
    export PROXMOX_STORAGE="local"
    export PROXMOX_TEMPLATE_VOLID="local:vztmpl/debian-12-template.tar.zst"
}

teardown() {
    [ -n "${STUB_DIR:-}" ] && rm -rf "$STUB_DIR"
}

@test "clone: create-from-template POST shape (vmid, ostemplate, hostname=praxis, storage, rootfs=16, memory=4096, net0, arch, features)" {
    STUB_UPID="UPID:testnode:00012345:ABCDEF"
    export STUB_UPID
    run "${ROOT}/lxc-clone.sh" 200
    [ "$status" -eq 0 ]
    # The new VMID is echoed on stdout.
    grep -q '^200$' <<< "$output"
    # pve_curl POST to /nodes/testnode/lxc recorded with the full body.
    grep -q '^POST /nodes/testnode/lxc vmid=200 ostemplate=local:vztmpl/debian-12-template.tar.zst hostname=praxis storage=local rootfs=local:16 memory=4096 net0=name=eth0,bridge=vmbr0,ip=dhcp arch=amd64 features=nesting=1$' "$LOG"
    # UPID was polled.
    grep -q '^poll:UPID:testnode:00012345:ABCDEF$' "$LOG"
    grep -q 'lxc-clone: CT 200 created' <<< "$output"
}

@test "clone: hostname is 'praxis' (NOT 'coreci') — G-106 praxis rebrand" {
    STUB_UPID="UPID:h:1"
    export STUB_UPID
    run "${ROOT}/lxc-clone.sh" 201
    [ "$status" -eq 0 ]
    grep -q ' hostname=praxis ' "$LOG"
    ! grep -q 'hostname=coreci' "$LOG"
}

@test "clone: memory defaults to 4096 (NOT 2048) — praxis v0.2 sizing" {
    STUB_UPID="UPID:m:1"
    export STUB_UPID
    run "${ROOT}/lxc-clone.sh" 202
    [ "$status" -eq 0 ]
    grep -q ' memory=4096 ' "$LOG"
    ! grep -q 'memory=2048' "$LOG"
}

@test "clone: rootfs is <storage>:16 (NOT :8) — praxis v0.2 disk sizing" {
    STUB_UPID="UPID:r:1"
    export STUB_UPID
    run "${ROOT}/lxc-clone.sh" 203
    [ "$status" -eq 0 ]
    grep -q ' rootfs=local:16 ' "$LOG"
    ! grep -q 'rootfs=local:8' "$LOG"
}

@test "clone: features=nesting=1 (Docker-in-LXC requires nesting)" {
    STUB_UPID="UPID:f:1"
    export STUB_UPID
    run "${ROOT}/lxc-clone.sh" 204
    [ "$status" -eq 0 ]
    grep -q 'features=nesting=1' "$LOG"
}

@test "clone: net0 uses bridge=vmbr0,ip=dhcp" {
    STUB_UPID="UPID:n:1"
    export STUB_UPID
    run "${ROOT}/lxc-clone.sh" 205
    [ "$status" -eq 0 ]
    grep -q 'net0=name=eth0,bridge=vmbr0,ip=dhcp' "$LOG"
}

@test "clone: PRAXIS_HOSTNAME override flows into hostname field" {
    STUB_UPID="UPID:h:2"
    export STUB_UPID
    PRAXIS_HOSTNAME="praxis-staging" run "${ROOT}/lxc-clone.sh" 206
    [ "$status" -eq 0 ]
    grep -q 'hostname=praxis-staging' "$LOG"
}

@test "clone: PROXMOX_MEMORY_MB override flows into memory field" {
    STUB_UPID="UPID:m:2"
    export STUB_UPID
    PROXMOX_MEMORY_MB=8192 run "${ROOT}/lxc-clone.sh" 207
    [ "$status" -eq 0 ]
    grep -q 'memory=8192' "$LOG"
}

@test "clone: empty UPID (null) → exit 1, no poll, error logged" {
    STUB_UPID="null"
    export STUB_UPID
    run "${ROOT}/lxc-clone.sh" 208
    [ "$status" -ne 0 ]
    grep -q 'failed to start create (empty UPID)' <<< "$output"
    ! grep -q '^poll:' "$LOG"
}

@test "clone: empty-string UPID → exit 1, no poll" {
    STUB_UPID=""
    export STUB_UPID
    run "${ROOT}/lxc-clone.sh" 209
    [ "$status" -ne 0 ]
    grep -q 'failed to start create (empty UPID)' <<< "$output"
    ! grep -q '^poll:' "$LOG"
}

@test "clone: missing VMID arg → exit non-zero (usage)" {
    run "${ROOT}/lxc-clone.sh"
    [ "$status" -ne 0 ]
    grep -q 'usage: lxc-clone.sh' <<< "$output"
}

@test "clone: pve_env fails on missing PROXMOX_STORAGE → exit non-zero" {
    STUB_UPID="UPID:e:1"
    export STUB_UPID
    run env -u PROXMOX_STORAGE "${ROOT}/lxc-clone.sh" 210
    [ "$status" -ne 0 ]
}

@test "clone: pve_env fails on missing PROXMOX_TEMPLATE_VOLID → exit non-zero" {
    STUB_UPID="UPID:e:2"
    export STUB_UPID
    run env -u PROXMOX_TEMPLATE_VOLID "${ROOT}/lxc-clone.sh" 211
    [ "$status" -ne 0 ]
}