#!/usr/bin/env bash
set -Eeuo pipefail
umask 077
# Canonical VM130 workflow-v2 worker derived from the accepted web release pattern.
SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
BUNDLE_ROOT="${BUNDLE_ROOT:-$(cd "$SCRIPT_DIR/.." && pwd)}"; export BUNDLE_ROOT
BASE="${ROUTER_OPS_BASE:-/opt/router-ops}"
INCOMING="${ROUTER_STEP_INCOMING:-/home/ops/incoming}"
WORKFLOW_LIB="${ROUTER_STEP_WORKFLOW_LIB:-$BASE/lib/router-step-workflow.sh}"
TRANSITION_LIB="${ROUTER_RUNTIME_TRANSITION_LIB:-$BASE/lib/router-runtime-transition.sh}"
FINALIZER="${ROUTER_STEP_FINALIZE_BIN:-$BASE/bin/router-step-finalize}"
SAFE_PAYLOAD="${ROUTER_PUBLIC_SAFE_PAYLOAD_BIN:-$BASE/bin/router-public-safe-payload}"
MACHINE_CLOSE="${ROUTER_MACHINE_CLOSE_SAFE:-$BASE/bin/router-machine-close-safe}"
RUN_TARGET="${P27FW10_RUN_TARGET:-$BUNDLE_ROOT/scripts/run-target.sh}"
ROLLBACK="${P27FW10_ROLLBACK:-$BUNDLE_ROOT/rollback/rollback-vm103-access-ui.sh}"
release_env="$("$BASE/bin/router-release-contract" env --root "$BUNDLE_ROOT")"
eval "$release_env"
STEP_ID="$ROUTER_RELEASE_STEP_ID"
PACKAGE_SHA="$ROUTER_RELEASE_TARGET_PACKAGE_SHA256"
RUN_ID="${P27FW10_RUN_ID:-$(date -u +%Y%m%d-%H%M%S)-$$}"
[[ "$RUN_ID" =~ ^[A-Za-z0-9-]+$ ]]
RUN_DIR="${ROUTER_STEP_RUN_DIR:-$BASE/state/step-runs/$STEP_ID/$RUN_ID}"
EVIDENCE_DIR="$RUN_DIR/evidence"; REPORT_DIR="$RUN_DIR/report"; PUBLIC_PAYLOAD="$RUN_DIR/public-payload"
CURRENT_FILE="$RUN_DIR/workflow-current.txt"; EVENTS_FILE="$RUN_DIR/workflow-events.tsv"
TRANSITION_FILE="$RUN_DIR/runtime-transition.txt"; FINAL_ENV="$RUN_DIR/finalize.txt"
LOCK_FILE="${ROUTER_STEP_LOCK_FILE:-$BASE/state/locks/${STEP_ID}.lock}"
CURRENT_PHASE=preflight; BACKUP_READY=false; CORE_CHANGE_COMPLETE=false
ROLLBACK_STATUS=not_required; LATEST_ARCHIVE=not_created; STOP_COMMAND=none
source "$WORKFLOW_LIB"
source "$TRANSITION_LIB"
mkdir -p "$RUN_DIR" "$EVIDENCE_DIR" "$REPORT_DIR" "$(dirname "$LOCK_FILE")"
exec 9>"$LOCK_FILE"
flock -n 9 || { echo RESULT=STOP_P27FW10_STEP_ALREADY_RUNNING; echo STEP_WAS_NOT_STARTED=true; exit 75; }
router_step_workflow_init "$CURRENT_FILE" "$EVENTS_FILE" preflight transfer backup apply postcheck source_publish report_build finalization latest
router_runtime_transition_init "$TRANSITION_FILE"

rollback_now() {
    [ "$BACKUP_READY" = true ] || return 0
    [ "$CORE_CHANGE_COMPLETE" = false ] || return 0
    router_runtime_transition_rollback_allowed "$TRANSITION_FILE" || return 0
    "$ROLLBACK" "$RUN_ID" "$PACKAGE_SHA" > "$EVIDENCE_DIR/rollback.txt" 2>&1 || return $?
    grep -Fqx RESULT=PASS_P27FW10_ROLLBACK "$EVIDENCE_DIR/rollback.txt"
}

build_report() {
    local result="$1" phase="$2" rc="$3" line="$4"
    python3 "$BUNDLE_ROOT/scripts/build-report.py" --bundle "$BUNDLE_ROOT" --run-dir "$RUN_DIR" \
        --result "$result" --phase "$phase" --rc "$rc" --line "$line" \
        --core-complete "$CORE_CHANGE_COMPLETE" --rollback-status "$ROLLBACK_STATUS"
}

publish_report() {
    local args=() file
    for file in report.txt facts.json facts-public.html verify-public.html rollback-public.html release-info.json installer.sha256 bundle-manifest.sha256 executed-step.sh executed-worker.sh workflow-current.txt workflow-events.tsv; do
        [[ ! -f "$REPORT_DIR/$file" ]] || args+=("$REPORT_DIR/$file" "$file")
    done
    for file in preflight transfer backup apply postcheck source-publish rollback; do
        [[ ! -f "$REPORT_DIR/$file.txt" ]] || args+=("$REPORT_DIR/$file.txt" "$file.txt")
    done
    "$SAFE_PAYLOAD" "$PUBLIC_PAYLOAD" "${args[@]}"
    "$FINALIZER" --label step_vm103_access_ui_p27fw10_r03 \
        --payload-dir "$PUBLIC_PAYLOAD" --workflow-current "$CURRENT_FILE" \
        --workflow-events "$EVENTS_FILE" --output-env "$FINAL_ENV" --expect-kind step-report
}

archive_latest() {
    if [[ -n "${P27FW10_LATEST_RUNNER:-}" ]]; then
        "$P27FW10_LATEST_RUNNER" "$BASE" "$INCOMING" > "$EVIDENCE_DIR/latest.txt" 2>&1
    else
        router_step_archive_latest_python "$BASE" "$INCOMING" "$(date -u +%Y%m%d-%H%M%S)" > "$EVIDENCE_DIR/latest.txt" 2>&1
    fi
    cat "$EVIDENCE_DIR/latest.txt"
    grep -Fqx RESULT=PASS_ROUTER_STEP_ARCHIVE_LATEST "$EVIDENCE_DIR/latest.txt"
    LATEST_ARCHIVE="$(awk -F= '$1=="LATEST_ARCHIVE" {print substr($0,index($0,"=")+1)}' "$EVIDENCE_DIR/latest.txt" | tail -n 1)"
    [[ -n "$LATEST_ARCHIVE" ]]
}

stop() {
    local line="$1" rc="$2" command="$3" phase="$CURRENT_PHASE"
    trap - ERR HUP INT TERM
    set +e
    STOP_COMMAND="$command"
    router_step_phase_fail "$phase" "line=$line rc=$rc" >/dev/null 2>&1
    if [[ "$BACKUP_READY" == true && "$CORE_CHANGE_COMPLETE" == false ]]; then
        if rollback_now; then
            ROLLBACK_STATUS=restored
        elif grep -Fqx CORE_CHANGE_COMPLETE=true "$EVIDENCE_DIR/rollback.txt" 2>/dev/null && grep -Fqx RESULT=STOP_P27FW10_CORE_ALREADY_ACCEPTED "$EVIDENCE_DIR/rollback.txt" 2>/dev/null; then
            CORE_CHANGE_COMPLETE=true
            ROLLBACK_STATUS=preserved_accepted_core
            router_runtime_transition_set "$TRANSITION_FILE" CORE_CHANGE_COMPLETE true
        else
            ROLLBACK_STATUS=failed
        fi
    elif [[ "$CORE_CHANGE_COMPLETE" == true ]]; then
        ROLLBACK_STATUS=preserved_accepted_core
    fi
    if router_step_should_publish_stop; then
        if build_report STOP "$phase" "$rc" "$line"; then publish_report || echo STOP_REPORT_FINALIZATION=FAILED; else echo STOP_REPORT_BUILD=FAILED; fi
    else
        echo NO_SECOND_STOP_REPORT=true
    fi
    archive_latest || { echo STOP_LATEST_ARCHIVE=FAILED; cat "$EVIDENCE_DIR/latest.txt" 2>/dev/null; }
    router_step_emit_stop_evidence STOP_P27FW10_ACCESS_UI "$phase" "$line" "$rc" "$command" VM103 "$CORE_CHANGE_COMPLETE" "$ROLLBACK_STATUS" "$LATEST_ARCHIVE" inspect_run_evidence_and_continue_from_first_unfinished_phase
    [[ "$CORE_CHANGE_COMPLETE" != true ]] || echo CONTINUATION_REQUIRED=true
    exit "$rc"
}
trap 'stop "$LINENO" "$?" "$BASH_COMMAND"' ERR
trap 'stop "$LINENO" 129 "signal HUP"' HUP
trap 'stop "$LINENO" 130 "signal INT"' INT
trap 'stop "$LINENO" 143 "signal TERM"' TERM

run_phase() {
    local phase="$1" expected="$2"
    CURRENT_PHASE="$phase"
    router_step_phase_begin "$phase"
    "$RUN_TARGET" "$phase" "$RUN_ID" "$PACKAGE_SHA" > "$EVIDENCE_DIR/$phase.txt" 2>&1
    cat "$EVIDENCE_DIR/$phase.txt"
    grep -Fqx "RESULT=$expected" "$EVIDENCE_DIR/$phase.txt"
}

run_phase preflight PASS_P27FW10_PREFLIGHT
router_step_phase_complete preflight exact_vm103_baseline_and_serving_verified
run_phase transfer PASS_P27FW10_TRANSFER
router_runtime_transition_set "$TRANSITION_FILE" TRANSFER_VERIFIED true
router_step_phase_complete transfer exact_target_package_transferred
run_phase backup PASS_P27FW10_BACKUP
BACKUP_READY=true
router_runtime_transition_set "$TRANSITION_FILE" BACKUP_READY true
router_step_phase_complete backup exact_access_backup_verified
run_phase apply PASS_P27FW10_APPLY
router_runtime_transition_set "$TRANSITION_FILE" FILES_INSTALLED true
router_step_phase_complete apply access_only_static_bundle_installed
run_phase postcheck PASS_P27FW10_POSTCHECK
CORE_CHANGE_COMPLETE=true
router_runtime_transition_set "$TRANSITION_FILE" CORE_CHANGE_COMPLETE true
router_runtime_transition_set "$TRANSITION_FILE" ACTIVATION_COMPLETE true
router_step_phase_complete postcheck access_serving_and_admin_unchanged_verified

CURRENT_PHASE=source_publish
router_step_phase_begin source_publish
"$MACHINE_CLOSE" vm103 "$STEP_ID Access UI polish; remove obsolete Access assets and own new hashed assets" > "$EVIDENCE_DIR/source-publish.txt" 2>&1
cat "$EVIDENCE_DIR/source-publish.txt"
grep -Fqx RESULT=PASS_ROUTER_MACHINE_CLOSE "$EVIDENCE_DIR/source-publish.txt"
router_step_phase_complete source_publish vm103_machine_git_github_roundtrip_published

CURRENT_PHASE=report_build
router_step_phase_begin report_build
build_report PASS none 0 0
router_step_phase_complete report_build access_release_evidence_ready
CURRENT_PHASE=finalization
router_step_phase_begin finalization
publish_report
router_step_phase_complete finalization canonical_report_http_verified
CURRENT_PHASE=latest
router_step_phase_begin latest
archive_latest
router_step_phase_complete latest fresh_latest_archive_verified
router_step_workflow_mark_complete
trap - ERR HUP INT TERM
"$RUN_TARGET" cleanup "$RUN_ID" "$PACKAGE_SHA" >/dev/null 2>&1 || true
cat "$FINAL_ENV"
cat "$REPORT_DIR/report.txt"
echo RESULT=PASS_P27FW10_ACCESS_UI
echo "RUN_DIR=$RUN_DIR"
echo "LATEST_ARCHIVE=$LATEST_ARCHIVE"