#!/usr/bin/env bash
set -euo pipefail

repository_root=$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)
workspace_venv="$repository_root/../.venv"
test_tmp=$(mktemp -d)
chmod 0700 "$test_tmp"

export ANSIBLE_COLLECTIONS_PATH="$test_tmp/collections"
export ANSIBLE_ROLES_PATH="$(dirname "$repository_root")"

inventory="$repository_root/tests/inventory"
converge="$repository_root/tests/converge.yml"
verify="$repository_root/tests/verify.yml"
verify_config="$repository_root/tests/verify-config.yml"
unsupported="$repository_root/tests/unsupported.yml"
ansible_playbook="$workspace_venv/bin/ansible-playbook"
default_commit=77ae132e5609916da40dcd4fcc749c000a63cbac
previous_commit=61436d7c186af57b06004e090ceac898e83cdb71
source_dir=/usr/local/src/notarius
binary_path=/usr/local/bin/notarius
config_path=/usr/local/etc/notarius/config.yml

cleanup() {
  exit_status=$?
  trap - EXIT
  "$ansible_playbook" -i "$inventory" "$converge" >/dev/null 2>&1 || true
  rm -rf -- "$test_tmp"
  exit "$exit_status"
}
trap cleanup EXIT

require_clean_recap() {
  grep -Eq 'changed=0 .*failed=0' "$1"
}

require_changed_recap() {
  grep -Eq 'changed=[1-9][0-9]* .*failed=0' "$1"
}

run_converge() {
  output_file=$1
  shift
  "$ansible_playbook" -i "$inventory" "$@" "$converge" | tee "$output_file"
}

verify_release() {
  expected_version=$1
  expected_commit=$2
  "$ansible_playbook" -i "$inventory" \
    -e "notarius_expected_version=$expected_version" \
    -e "notarius_expected_commit=$expected_commit" \
    "$verify"
}

verify_rendered_config() {
  "$ansible_playbook" -i "$inventory" \
    -e "{\"notarius_expected_config\":$1}" \
    "$verify_config"
}

require_configuration_change_without_build() {
  grep -A1 -E 'TASK .*Build Notarius' "$1" | grep -q '^skipping:'
  grep -A1 -E 'TASK .*Write Notarius configuration' "$1" | grep -q '^changed:'
}

cd "$repository_root"
"$workspace_venv/bin/ansible-galaxy" collection install \
  -r collections/requirements.yml \
  -p "$ANSIBLE_COLLECTIONS_PATH"
"$ansible_playbook" -i "$inventory" --syntax-check "$converge"
"$workspace_venv/bin/ansible-lint" \
  "$converge" "$verify" "$verify_config" "$unsupported"

baseline_log="$test_tmp/baseline.log"
run_converge "$baseline_log"
verify_release v0.6.0 "$default_commit"
verify_rendered_config '{"version":4}'
repeat_log="$test_tmp/repeat.log"
run_converge "$repeat_log"
require_clean_recap "$repeat_log"

sudo rm -f -- "$binary_path"
missing_binary_log="$test_tmp/missing-binary.log"
run_converge "$missing_binary_log"
require_changed_recap "$missing_binary_log"
grep -A1 -E 'TASK .*Build Notarius' "$missing_binary_log" | grep -q '^changed:'
missing_binary_repeat_log="$test_tmp/missing-binary-repeat.log"
run_converge "$missing_binary_repeat_log"
require_clean_recap "$missing_binary_repeat_log"

custom_go_binary="$test_tmp/go"
ln -s /snap/bin/go "$custom_go_binary"
sudo rm -f -- "$binary_path"
custom_go_log="$test_tmp/custom-go.log"
run_converge "$custom_go_log" \
  -e '{"notarius_manage_build_dependencies":false}' \
  -e "notarius_go_binary=$custom_go_binary"
require_changed_recap "$custom_go_log"
grep -A1 -E 'TASK .*Build Notarius' "$custom_go_log" | grep -q '^changed:'
custom_go_repeat_log="$test_tmp/custom-go-repeat.log"
run_converge "$custom_go_repeat_log" \
  -e '{"notarius_manage_build_dependencies":false}' \
  -e "notarius_go_binary=$custom_go_binary"
require_clean_recap "$custom_go_repeat_log"

sudo chmod 0700 "$binary_path"
metadata_log="$test_tmp/metadata.log"
run_converge "$metadata_log"
require_changed_recap "$metadata_log"
grep -A1 -E 'TASK .*Build Notarius' "$metadata_log" | grep -q '^skipping:'
grep -A3 -E 'TASK .*Converge installed metadata' "$metadata_log" | \
  grep -q "^changed:.*'path': '$binary_path'"
metadata_repeat_log="$test_tmp/metadata-repeat.log"
run_converge "$metadata_repeat_log"
require_clean_recap "$metadata_repeat_log"

previous_release_log="$test_tmp/previous-release.log"
run_converge "$previous_release_log" -e notarius_version=v0.5.0
require_changed_recap "$previous_release_log"
verify_release v0.5.0 "$previous_commit"
previous_repeat_log="$test_tmp/previous-repeat.log"
run_converge "$previous_repeat_log" -e notarius_version=v0.5.0
require_clean_recap "$previous_repeat_log"

restored_release_log="$test_tmp/restored-release.log"
run_converge "$restored_release_log"
require_changed_recap "$restored_release_log"
verify_release v0.6.0 "$default_commit"
restored_repeat_log="$test_tmp/restored-repeat.log"
run_converge "$restored_repeat_log"
require_clean_recap "$restored_repeat_log"

representative_config='{"notarius_promptkit_local_backend_endpoint":"http://localhost:8000/v1","notarius_promptkit_local_backend_concurrency_limit":2,"notarius_pipelines":{"dnd-session":{"llm_profile":"dnd-extraction","input":"seriatim","artifacts":{"spells":{"extract":"dnd/spells","normalize":"dnd/spells"}}}},"notarius_concurrency_total_llm":2,"notarius_concurrency_stage_workers_extract":2,"notarius_output_directory":"/tmp/notarius-output","notarius_cache_chunk_plans_mode":"refresh","notarius_cache_chunk_plans_directory":"/tmp/notarius-cache/chunk-plans","notarius_cache_checkpoints_enabled":true,"notarius_cache_checkpoints_directory":"/tmp/notarius-cache/checkpoints","notarius_debug_directory":"/tmp/notarius-debug"}'
representative_expected='{"version":4,"promptkit":{"local_backend":{"endpoint":"http://localhost:8000/v1","concurrency_limit":2}},"pipelines":{"dnd-session":{"llm_profile":"dnd-extraction","input":"seriatim","artifacts":{"spells":{"extract":"dnd/spells","normalize":"dnd/spells"}}}},"concurrency":{"total_llm":2,"stage_workers":{"extract":2}},"output":{"directory":"/tmp/notarius-output"},"cache":{"chunk_plans":{"mode":"refresh","directory":"/tmp/notarius-cache/chunk-plans"},"checkpoints":{"enabled":true,"directory":"/tmp/notarius-cache/checkpoints"}},"debug":{"directory":"/tmp/notarius-debug"}}'
representative_log="$test_tmp/representative.log"
run_converge "$representative_log" -e "$representative_config"
require_changed_recap "$representative_log"
require_configuration_change_without_build "$representative_log"
verify_rendered_config "$representative_expected"
representative_repeat_log="$test_tmp/representative-repeat.log"
run_converge "$representative_repeat_log" -e "$representative_config"
require_clean_recap "$representative_repeat_log"

profile_dir_config='{"notarius_promptkit_profile_dir":"/usr/local/src/notarius/examples/profiles"}'
profile_dir_expected='{"version":4,"promptkit":{"profile_dir":"/usr/local/src/notarius/examples/profiles"}}'
profile_dir_log="$test_tmp/profile-dir.log"
run_converge "$profile_dir_log" -e "$profile_dir_config"
require_changed_recap "$profile_dir_log"
require_configuration_change_without_build "$profile_dir_log"
verify_rendered_config "$profile_dir_expected"
profile_dir_repeat_log="$test_tmp/profile-dir-repeat.log"
run_converge "$profile_dir_repeat_log" -e "$profile_dir_config"
require_clean_recap "$profile_dir_repeat_log"

profile_file_config='{"notarius_promptkit_profile_file":"/usr/local/src/notarius/examples/profiles/dnd-extraction.yml"}'
profile_file_expected='{"version":4,"promptkit":{"profile_file":"/usr/local/src/notarius/examples/profiles/dnd-extraction.yml"}}'
profile_file_log="$test_tmp/profile-file.log"
run_converge "$profile_file_log" -e "$profile_file_config"
require_changed_recap "$profile_file_log"
require_configuration_change_without_build "$profile_file_log"
verify_rendered_config "$profile_file_expected"
profile_file_repeat_log="$test_tmp/profile-file-repeat.log"
run_converge "$profile_file_repeat_log" -e "$profile_file_config"
require_clean_recap "$profile_file_repeat_log"

falsey_config='{"notarius_promptkit_local_backend_endpoint":"http://localhost:8000/v1","notarius_promptkit_local_backend_concurrency_limit":0,"notarius_pipelines":{},"notarius_cache_chunk_plans_directory":"","notarius_cache_checkpoints_enabled":false}'
falsey_expected='{"version":4,"promptkit":{"local_backend":{"endpoint":"http://localhost:8000/v1","concurrency_limit":0}},"pipelines":{},"cache":{"chunk_plans":{"directory":""},"checkpoints":{"enabled":false}}}'
falsey_log="$test_tmp/falsey.log"
run_converge "$falsey_log" -e "$falsey_config"
require_changed_recap "$falsey_log"
require_configuration_change_without_build "$falsey_log"
verify_rendered_config "$falsey_expected"
falsey_repeat_log="$test_tmp/falsey-repeat.log"
run_converge "$falsey_repeat_log" -e "$falsey_config"
require_clean_recap "$falsey_repeat_log"

pipeline_group_one='{"dnd-session":{"llm_profile":"dnd-extraction","input":"seriatim","artifacts":{"spells":{"extract":"dnd/spells","normalize":"dnd/spells"}}}}'
pipeline_group_two='{"dnd-archive":{"llm_profile":"dnd-extraction","input":"seriatim","artifacts":{"spells":{"extract":"dnd/spells","normalize":"dnd/spells"}}}}'
pipeline_composition_config="{\"notarius_pipeline_group_one\":$pipeline_group_one,\"notarius_pipeline_group_two\":$pipeline_group_two,\"notarius_pipelines\":\"{{ notarius_pipeline_group_one | combine(notarius_pipeline_group_two) }}\"}"
pipeline_composition_expected='{"version":4,"pipelines":{"dnd-session":{"llm_profile":"dnd-extraction","input":"seriatim","artifacts":{"spells":{"extract":"dnd/spells","normalize":"dnd/spells"}}},"dnd-archive":{"llm_profile":"dnd-extraction","input":"seriatim","artifacts":{"spells":{"extract":"dnd/spells","normalize":"dnd/spells"}}}}}'
pipeline_composition_log="$test_tmp/pipeline-composition.log"
run_converge "$pipeline_composition_log" -e "$pipeline_composition_config"
require_changed_recap "$pipeline_composition_log"
require_configuration_change_without_build "$pipeline_composition_log"
verify_rendered_config "$pipeline_composition_expected"
pipeline_composition_repeat_log="$test_tmp/pipeline-composition-repeat.log"
run_converge "$pipeline_composition_repeat_log" -e "$pipeline_composition_config"
require_clean_recap "$pipeline_composition_repeat_log"

default_config_log="$test_tmp/default-config.log"
run_converge "$default_config_log"
require_changed_recap "$default_config_log"
require_configuration_change_without_build "$default_config_log"
verify_release v0.6.0 "$default_commit"
verify_rendered_config '{"version":4}'
default_config_repeat_log="$test_tmp/default-config-repeat.log"
run_converge "$default_config_repeat_log"
require_clean_recap "$default_config_repeat_log"

platform_cases=(
  'Debian 26.04 x86_64 distribution'
  'Ubuntu 24.04 x86_64 release'
  'Ubuntu 26.04 riscv64 architecture'
)
for platform_case in "${platform_cases[@]}"; do
  read -r distribution release architecture label <<<"$platform_case"
  case_root="$test_tmp/unsupported-$label"
  case_source="$case_root/source"
  case_binary="$case_root/bin/notarius"
  case_config="$case_root/etc/config.yml"
  case_log="$test_tmp/unsupported-$label.log"
  if "$ansible_playbook" -i "$inventory" \
    -e "test_distribution=$distribution" \
    -e "test_distribution_version=$release" \
    -e "test_architecture=$architecture" \
    -e "notarius_source_dir=$case_source" \
    -e "notarius_binary_path=$case_binary" \
    -e "notarius_config_path=$case_config" \
    "$unsupported" | tee "$case_log"; then
    echo "Unsupported $label case unexpectedly succeeded" >&2
    exit 1
  fi
  grep -Eq 'failed=1' "$case_log"
  [[ ! -e "$case_source" ]]
  [[ ! -e "$case_binary" ]]
  [[ ! -e "$case_config" ]]
done

[[ "$(sudo git -C "$source_dir" rev-parse HEAD)" == "$default_commit" ]]
[[ "$(sudo stat -c '%U:%G %a' "$binary_path")" == 'root:root 755' ]]
[[ "$(sudo stat -c '%U:%G %a' "$config_path")" == 'root:root 644' ]]
[[ "$("$binary_path" --version)" == 'notarius v0.6.0' ]]
"$binary_path" config validate --config "$config_path"