#!/usr/bin/env bats
# Seam: Caddyfile validity.
#
# There is exactly one Caddy in the homelab: the container on dankclaw
# (dankclaw/compose.yaml, service 'caddy'). It fronts every service on both
# hosts — local services by container name, dankserver services by published
# LAN port. Site blocks use the flat franksdank.cloud / franksdank.casa
# convention. The basicauth hash is a placeholder in git; deploy.sh renders
# the real hash from the host .env (CADDY_BASICAUTH_HASH).

load helpers

CADDYFILE="$REPO_ROOT/dankclaw/Caddyfile"

@test "the Caddyfile lives on dankclaw only (Caddy is consolidated there)" {
    [ -f "$CADDYFILE" ]
    [ ! -f "$REPO_ROOT/dankserver/Caddyfile" ]
}

@test "the Caddyfile uses the flat franksdank.cloud hostname convention" {
    grep -qE '\.franksdank\.cloud' "$CADDYFILE"
}

@test "no .local vhost names remain in the Caddyfile" {
    ! grep -qE '^([a-z0-9.-]+\.)?(dankserver|dankclaw)\.local[[:space:]]*\{' \
        "$CADDYFILE"
}

@test "the Caddyfile has balanced braces" {
    local open close
    open=$(grep -o '{' "$CADDYFILE" | wc -l)
    close=$(grep -o '}' "$CADDYFILE" | wc -l)
    [ "$open" -eq "$close" ] || { echo "unbalanced braces ($open vs $close)"; return 1; }
}

@test "caddy validate passes when caddy is available" {
    if command -v caddy >/dev/null 2>&1; then
        caddy validate --config "$CADDYFILE" --adapter caddyfile
    else
        skip "caddy binary not installed locally"
    fi
}

@test "homepage basic auth exists in the Caddyfile" {
    grep -qiE 'basicauth|basic_auth' "$CADDYFILE"
}

@test "the Caddyfile carries the renderable basicauth placeholder" {
    grep -q 'REPLACE_WITH_HASH' "$CADDYFILE"
}

@test "the Caddyfile does not disable the admin endpoint (hot reload needs it)" {
    # admin off disables Caddy's config file watcher: rendered Caddyfile
    # changes are never loaded until the container is recreated, and the
    # stale config fails silently (2026-08-22: basicauth stayed broken for
    # hours across deploys). The admin API binds to 127.0.0.1:2019 inside
    # the container and the port is not published, so it is not reachable
    # from the LAN.
    if grep -qE '^\s*admin\s+off' "$CADDYFILE"; then
        echo "Caddyfile: 'admin off' disables hot reload of rendered config"
        return 1
    fi
}

@test "the basicauth placeholder is a bare token (no bcrypt prefix in the template)" {
    # Regression (2026-08-22): the template line was
    #   dank $2a$14$REPLACE_WITH_HASH
    # and deploy.sh substitutes the FULL hash (prefix included), so the
    # rendered line became an invalid double-prefixed hash and every
    # basicauth vhost rejected every password with 401.
    if grep -qE '\$2[abxy]\$[0-9]+\$REPLACE_WITH_HASH' "$CADDYFILE"; then
        echo "Caddyfile: bcrypt prefix before REPLACE_WITH_HASH (double-prefix regression)"
        return 1
    fi
    grep -qE 'dankuser REPLACE_WITH_HASH' "$CADDYFILE"
}

@test "compose no longer defines the quadlet-replaced services" {
    # gitea, its postgres, open-webui, and caddy run as boot-persistent
    # quadlets on dankclaw (see dankclaw/gitea/quadlet,
    # dankclaw/open-webui/quadlet, dankclaw/caddy/quadlet).
    ! grep -qE '^\s+(gitea|postgres|openwebui|caddy):\s*$' "$REPO_ROOT/dankclaw/compose.yaml"
}

@test "the caddy quadlet healthcheck probes the bare-IP catch-all" {
    grep -q 'HealthCmd=curl -sf -o /dev/null http://localhost:80/' \
        "$REPO_ROOT/dankclaw/caddy/quadlet/caddy.container"
}

@test "plex vhosts proxy to PMS over a TLS upstream (PMS drops plain HTTP off-loopback)" {
    # 2026-08-26 diagnosis: PMS 1.43.x on :32400 accepts, reads, and then
    # silently closes every non-TLS connection from a non-loopback source
    # (loopback is exempt). A plain-HTTP reverse_proxy therefore gets EOF
    # and Caddy answers 502 with an empty body (blank page in browsers).
    # Both plex vhosts must dial the upstream over TLS. PMS serves a
    # self-signed cert, so verification is skipped on this pinned-LAN-IP
    # hop only; client-facing Let's Encrypt TLS is untouched.
    local block name
    for name in 'plex.franksdank.cloud {' 'http://plex.franksdank.casa {'; do
        block=$(awk -v s="$name" '
            index($0, s) == 1 { inblk = 1 }
            inblk { print }
            inblk && /^}/ { exit }' "$CADDYFILE")
        echo "$block" | grep -q 'reverse_proxy 192.168.0.235:32400' \
            || { echo "$name: missing PMS upstream"; return 1; }
        echo "$block" | grep -q 'transport http' \
            || { echo "$name: upstream must use the http transport with TLS"; return 1; }
        echo "$block" | grep -q 'tls_insecure_skip_verify' \
            || { echo "$name: TLS upstream must set tls_insecure_skip_verify (PMS self-signed cert)"; return 1; }
    done
}

@test "Gitea has no standalone reverse-proxy Quadlet" {
    [ ! -e "$REPO_ROOT/dankclaw/gitea/quadlet/gitea-caddy.container" ]
}

@test "the canonical Caddy owns the Gitea route" {
    grep -qF 'gitea.franksdank.cloud {' "$CADDYFILE"
    grep -qF 'reverse_proxy 192.168.0.143:3000' "$CADDYFILE"
}

# --- Phase 2: real TLS via DNS-01 (Porkbun wildcard cert) ---

@test "all vhosts use TLS except the legacy .casa name" {
    # franksdank.casa is not in the same Porkbun account, so it cannot get
    # a DNS-01 Let's Encrypt cert; it stays explicitly http. Every other
    # site address must carry no http:// prefix.
    local offenders
    offenders=$(grep -E '^http://' "$CADDYFILE" | grep -v 'plex\.franksdank\.casa' || true)
    [ -z "$offenders" ] || { echo "non-.casa http:// vhosts: $offenders"; return 1; }
}

@test "the Caddyfile configures the Porkbun DNS-01 provider globally" {
    grep -q 'acme_dns porkbun' "$CADDYFILE"
    grep -q '{env.PORKBUN_API_KEY}' "$CADDYFILE"
    grep -q '{env.PORKBUN_API_SECRET_KEY}' "$CADDYFILE"
}

@test "the bare-IP catch-all redirects to the HTTPS homepage" {
    grep -q 'redir https://franksdank.cloud/' "$CADDYFILE"
}

@test "the caddy quadlet uses the locally built porkbun image without pulling" {
    # The image is built on-host from dankclaw/caddy/Containerfile; a boot
    # must not stall on a registry that does not have it.
    grep -q '^Image=franksdank/caddy-porkbun:latest$' \
        "$REPO_ROOT/dankclaw/caddy/quadlet/caddy.container"
    grep -q '^Pull=never$' "$REPO_ROOT/dankclaw/caddy/quadlet/caddy.container"
}

@test "the caddy quadlet reads the Porkbun credentials from its env file" {
    grep -q '^EnvironmentFile=/home/dank/Containers/caddy/env$' \
        "$REPO_ROOT/dankclaw/caddy/quadlet/caddy.container"
    grep -q '^PORKBUN_API_KEY=changeme$' "$REPO_ROOT/dankclaw/caddy/env.example"
    grep -q '^PORKBUN_API_SECRET_KEY=changeme$' "$REPO_ROOT/dankclaw/caddy/env.example"
}

@test ".env.example carries the Porkbun secret under the module's name" {
    grep -q 'PORKBUN_API_SECRET_KEY=' "$REPO_ROOT/dankclaw/.env.example"
    ! grep -q '^PORKBUN_API_SECRET=' "$REPO_ROOT/dankclaw/.env.example"
}

@test "the porkbun caddy image build lives in the repo" {
    local cf="$REPO_ROOT/dankclaw/caddy/Containerfile"
    [ -f "$cf" ] || { echo "missing $cf"; return 1; }
    grep -q 'xcaddy build' "$cf"
    grep -q 'github.com/caddy-dns/porkbun' "$cf"
}

# --- Observability configs (deployed by deploy.sh step 3) ---

@test "no legacy .local service names remain in shared configs or compose" {
    ! grep -rn 'dankclaw\.local\|dankserver\.local' \
        "$REPO_ROOT/shared" "$REPO_ROOT/dankclaw/compose.yaml"
}

@test "loki compactor has a delete_request_store (required when retention is on)" {
    local loki="$REPO_ROOT/shared/loki/loki-config.yaml"
    if grep -q 'retention_enabled: true' "$loki"; then
        grep -q 'delete_request_store:' "$loki"
    fi
}

@test "prometheus targets are host:port (no URL schemes)" {
    ! grep -nE '^\s*-\s*"?http' "$REPO_ROOT/shared/prometheus/prometheus.yml"
}

@test "observability containers run as container root (rootless = host user)" {
    # In rootless podman, container root maps to the invoking user (dank),
    # which owns the /opt data dirs. The images' default users (loki 10001,
    # prometheus nobody, grafana 472) map to subuids that own nothing under
    # /opt and cannot write the data dirs.
    local compose="$REPO_ROOT/dankclaw/compose.yaml"
    local svc block
    for svc in prometheus loki grafana; do
        block=$(awk -v s="^  $svc:\$" '
            $0 ~ s { inblk = 1; next }
            inblk && /^  [a-z]/ { inblk = 0 }
            inblk' "$compose")
        echo "$block" | grep -q 'user: "0:0"' || {
            echo "service $svc does not run as user 0:0"; return 1;
        }
    done
}

# --- distroless healthchecks (loki/alloy carry a static busybox) ---

@test "loki and alloy run from local images carrying a static busybox" {
    local compose="$REPO_ROOT/dankclaw/compose.yaml"
    grep -q 'image: franksdank/loki:latest' "$compose" || { echo "loki image not local"; return 1; }
    grep -q 'image: franksdank/alloy:latest' "$compose" || { echo "alloy image not local"; return 1; }
    local img
    for img in loki alloy; do
        local cf="$REPO_ROOT/dankclaw/$img/Containerfile"
        [ -f "$cf" ] || { echo "missing $cf"; return 1; }
        grep -q 'busybox' "$cf" || { echo "$cf does not install busybox"; return 1; }
    done
}

@test "loki and alloy healthchecks use the busybox wget" {
    local compose="$REPO_ROOT/dankclaw/compose.yaml"
    local n
    n=$(grep -c '/usr/local/bin/busybox' "$compose")
    [ "$n" -ge 2 ] || { echo "expected >=2 busybox healthchecks, found $n"; return 1; }
}

@test "alloy config declares no ui/server block (default UI listens on 127.0.0.1:12345)" {
    # alloy 1.x refuses to configure the ui service from a config block
    # ("service ui does not support being configured"). The default UI
    # already listens where the in-container healthcheck probes.
    ! grep -qE '^(ui|server) \{' "$REPO_ROOT/shared/alloy/config.alloy"
}