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

if ! command -v docker >/dev/null || ! docker ps --format '{{.Names}}' | grep -qx 'wygj-mysql'; then
  echo "SKIP: AIHR schema migration test requires wygj-mysql"
  exit 0
fi

ROOT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")/../.." && pwd)"
MYSQL_CONTAINER="wygj-mysql"
DB="wygj_aihr_schema_test_$$"
LEGACY_DB="wygj_aihr_candidate_legacy_test_$$"

while IFS= read -r migration; do
  migration_name="$(basename "$migration")"
  grep -Fq "backend/script/sql/update/$migration_name" "$ROOT_DIR/docs/BRD_PRODUCTION_MIGRATION_RUNBOOK.md" || {
    echo "FAIL: AIHR migration missing from production Runbook: $migration_name" >&2
    exit 1
  }
done < <(find "$ROOT_DIR/backend/script/sql/update" -maxdepth 1 -type f -name 'aihr_*_mysql8.sql' -print | sort)

mysql() {
  docker exec -i "$MYSQL_CONTAINER" mysql -uroot -proot --default-character-set=utf8mb4 "$@"
}

cleanup() {
  mysql -e "DROP DATABASE IF EXISTS \`$DB\`;" >/dev/null 2>&1 || true
  mysql -e "DROP DATABASE IF EXISTS \`$LEGACY_DB\`;" >/dev/null 2>&1 || true
}
trap cleanup EXIT

mysql -e "CREATE DATABASE \`$DB\` CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci;"

mysql "$DB" < "$ROOT_DIR/backend/script/sql/update/aihr_20260714_case_media_mysql8.sql"
mysql "$DB" <<'SQL'
CREATE TABLE aihr_case_record (
  id bigint NOT NULL AUTO_INCREMENT,
  tenant_id varchar(20) DEFAULT '000000',
  case_id varchar(80) NOT NULL,
  summary varchar(1000) DEFAULT NULL,
  PRIMARY KEY (id),
  UNIQUE KEY uk_aihr_case_record_case (tenant_id, case_id)
) ENGINE=InnoDB;
SQL
mysql "$DB" < "$ROOT_DIR/backend/script/sql/update/aihr_20260714_case_media_mysql8.sql"
mysql "$DB" < "$ROOT_DIR/backend/script/sql/update/aihr_20260714_case_media_mysql8.sql"
case_media_columns="$(mysql "$DB" -N -B -e "SELECT GROUP_CONCAT(column_name ORDER BY ordinal_position) FROM information_schema.columns WHERE table_schema='$DB' AND table_name='aihr_case_record' AND column_name IN ('media_oss_id','media_url');")"
test "$case_media_columns" = 'media_oss_id,media_url'

mysql "$DB" < "$ROOT_DIR/backend/script/sql/update/aihr_20260714_case_learning_mysql8.sql"
mysql "$DB" < "$ROOT_DIR/backend/script/sql/update/aihr_20260714_case_learning_mysql8.sql"
case_learning_columns="$(mysql "$DB" -N -B -e "SELECT GROUP_CONCAT(column_name ORDER BY ordinal_position) FROM information_schema.columns WHERE table_schema='$DB' AND table_name='aihr_case_record' AND column_name IN ('learning_points','supervisor_comment');")"
test "$case_learning_columns" = 'learning_points,supervisor_comment'

mysql "$DB" <<'SQL'
CREATE TABLE aihr_prompt_template (
  id bigint NOT NULL AUTO_INCREMENT,
  tenant_id varchar(20) DEFAULT '000000',
  code varchar(80) NOT NULL,
  name varchar(100) NOT NULL,
  category varchar(50) NOT NULL,
  output_format varchar(50) NOT NULL,
  system_prompt text,
  template text NOT NULL,
  variables varchar(1000),
  version varchar(30) DEFAULT 'v1',
  enabled tinyint DEFAULT 1,
  description varchar(500),
  create_time datetime,
  update_time datetime,
  PRIMARY KEY (id),
  UNIQUE KEY uk_aihr_prompt_template (tenant_id, code, output_format, version)
) ENGINE=InnoDB;
SQL
mysql "$DB" < "$ROOT_DIR/backend/script/sql/update/aihr_20260714_prompt_template_seed_mysql8.sql"
mysql "$DB" < "$ROOT_DIR/backend/script/sql/update/aihr_20260714_prompt_template_seed_mysql8.sql"
prompt_template_count="$(mysql "$DB" -N -B -e "SELECT COUNT(*) FROM aihr_prompt_template WHERE tenant_id='000000';")"
test "$prompt_template_count" = '6'

mysql "$DB" < "$ROOT_DIR/backend/script/sql/update/aihr_20260715_knowledge_feedback_mysql8.sql"
mysql "$DB" < "$ROOT_DIR/backend/script/sql/update/aihr_20260715_knowledge_feedback_mysql8.sql"
knowledge_feedback_tables="$(mysql "$DB" -N -B -e "SELECT GROUP_CONCAT(table_name ORDER BY table_name) FROM information_schema.tables WHERE table_schema='$DB' AND table_name IN ('aihr_knowledge_answer_feedback','aihr_knowledge_gap');")"
test "$knowledge_feedback_tables" = 'aihr_knowledge_answer_feedback,aihr_knowledge_gap'

mysql "$DB" -e "DROP TABLE aihr_knowledge_answer_feedback"
mysql "$DB" <<'SQL'
CREATE TABLE aihr_knowledge_answer_feedback (
  id bigint NOT NULL AUTO_INCREMENT,
  tenant_id varchar(20) DEFAULT '000000',
  query_text varchar(1000) NOT NULL,
  query_norm varchar(500) NOT NULL,
  fragment_id bigint NOT NULL,
  verdict varchar(10) NOT NULL,
  category varchar(100),
  position varchar(80),
  source varchar(50),
  review_status varchar(30),
  create_time datetime,
  update_time datetime,
  PRIMARY KEY (id)
) ENGINE=InnoDB;
SQL
mysql "$DB" < "$ROOT_DIR/backend/script/sql/update/aihr_20260715_knowledge_feedback_mysql8.sql"
mysql "$DB" < "$ROOT_DIR/backend/script/sql/update/aihr_20260715_knowledge_feedback_mysql8.sql"
feedback_review_columns="$(mysql "$DB" -N -B -e "SELECT GROUP_CONCAT(column_name ORDER BY ordinal_position) FROM information_schema.columns WHERE table_schema='$DB' AND table_name='aihr_knowledge_answer_feedback' AND column_name IN ('review_id','reviewer','reviewed_time');")"
test "$feedback_review_columns" = 'review_id,reviewer,reviewed_time'

mysql "$DB" <<'SQL'
CREATE TABLE aihr_practice_session (
  id bigint NOT NULL AUTO_INCREMENT,
  session_id varchar(100) NOT NULL,
  total_score int,
  ai_comment varchar(1000),
  PRIMARY KEY (id)
) ENGINE=InnoDB;
SQL
mysql "$DB" < "$ROOT_DIR/backend/script/sql/update/aihr_20260715_practice_session_evidence_mysql8.sql"
mysql "$DB" < "$ROOT_DIR/backend/script/sql/update/aihr_20260715_practice_session_evidence_mysql8.sql"
practice_session_evidence_columns="$(mysql "$DB" -N -B -e "SELECT COUNT(*) FROM information_schema.columns WHERE table_schema='$DB' AND table_name='aihr_practice_session' AND column_name IN ('annotations_json','review_advice','incentive_point','satisfaction_score','satisfaction_comment');")"
test "$practice_session_evidence_columns" = '5'

mysql "$DB" < "$ROOT_DIR/backend/script/sql/update/aihr_20260714_practice_evidence_mysql8.sql"
mysql "$DB" < "$ROOT_DIR/backend/script/sql/update/aihr_20260714_practice_evidence_mysql8.sql"
evidence_tables="$(mysql "$DB" -N -B -e "SELECT GROUP_CONCAT(table_name ORDER BY table_name) FROM information_schema.tables WHERE table_schema='$DB' AND table_name IN ('aihr_practice_audio','aihr_practice_audio_upload','aihr_practice_calibration');")"
test "$evidence_tables" = 'aihr_practice_audio,aihr_practice_audio_upload,aihr_practice_calibration'

practice_help_migration="$ROOT_DIR/backend/script/sql/update/aihr_20260723_practice_m2_help_event_mysql8.sql"
test -f "$practice_help_migration"
mysql "$DB" < "$practice_help_migration"
mysql "$DB" < "$practice_help_migration"
practice_help_columns="$(mysql "$DB" -N -B -e "SELECT GROUP_CONCAT(column_name ORDER BY ordinal_position) FROM information_schema.columns WHERE table_schema='$DB' AND table_name='aihr_practice_help_event';")"
test "$practice_help_columns" = 'id,tenant_id,session_id,scenario_id,ext_party_id,round_index,create_time'
practice_help_tenant_collation="$(mysql "$DB" -N -B -e "SELECT CONCAT(character_set_name,'|',collation_name) FROM information_schema.columns WHERE table_schema='$DB' AND table_name='aihr_practice_help_event' AND column_name='tenant_id';")"
test "$practice_help_tenant_collation" = 'utf8mb4|utf8mb4_general_ci'
practice_help_session_index="$(mysql "$DB" -N -B -e "SELECT GROUP_CONCAT(column_name ORDER BY seq_in_index) FROM information_schema.statistics WHERE table_schema='$DB' AND table_name='aihr_practice_help_event' AND index_name='idx_aihr_practice_help_session';")"
test "$practice_help_session_index" = 'tenant_id,session_id,create_time'

mysql "$DB" <<'SQL'
CREATE TABLE aihr_sop_answer_review (
  id bigint NOT NULL AUTO_INCREMENT,
  snippet_count int DEFAULT 0,
  PRIMARY KEY (id)
) ENGINE=InnoDB;
SQL

mysql "$DB" < "$ROOT_DIR/backend/script/sql/update/aihr_20260714_sop_requester_identity_mysql8.sql"
mysql "$DB" < "$ROOT_DIR/backend/script/sql/update/aihr_20260714_sop_requester_identity_mysql8.sql"
sop_columns="$(mysql "$DB" -N -B -e "SELECT GROUP_CONCAT(column_name ORDER BY ordinal_position) FROM information_schema.columns WHERE table_schema='$DB' AND table_name='aihr_sop_answer_review' AND column_name IN ('source','prompt_version','requester_ext_party_id');")"
test "$sop_columns" = 'source,prompt_version,requester_ext_party_id'

mysql "$DB" < "$ROOT_DIR/backend/script/sql/update/aihr_20260714_org_hire_date_mysql8.sql"
mysql "$DB" <<'SQL'
CREATE TABLE aihr_org_snapshot (
  id bigint NOT NULL AUTO_INCREMENT,
  tenant_id varchar(20) NOT NULL,
  project_code varchar(50) NOT NULL,
  ext_party_id varchar(100) NOT NULL,
  PRIMARY KEY (id),
  UNIQUE KEY uk_aihr_org_party (tenant_id, ext_party_id)
) ENGINE=InnoDB;
SQL
mysql "$DB" < "$ROOT_DIR/backend/script/sql/update/aihr_20260714_org_hire_date_mysql8.sql"
mysql "$DB" < "$ROOT_DIR/backend/script/sql/update/aihr_20260714_org_hire_date_mysql8.sql"
org_columns="$(mysql "$DB" -N -B -e "SELECT GROUP_CONCAT(column_name ORDER BY ordinal_position) FROM information_schema.columns WHERE table_schema='$DB' AND table_name='aihr_org_snapshot' AND column_name='hire_date';")"
test "$org_columns" = 'hire_date'
org_multi_project_migration="$ROOT_DIR/backend/script/sql/update/aihr_20260721_org_multi_project_membership_mysql8.sql"
mysql "$DB" < "$org_multi_project_migration"
mysql "$DB" < "$org_multi_project_migration"
org_party_unique="$(mysql "$DB" -N -B -e "SELECT GROUP_CONCAT(column_name ORDER BY seq_in_index) FROM information_schema.statistics WHERE table_schema='$DB' AND table_name='aihr_org_snapshot' AND index_name='uk_aihr_org_party';")"
test "$org_party_unique" = 'tenant_id,project_code,ext_party_id'

tenant_org_governance_migration="$ROOT_DIR/backend/script/sql/update/aihr_20260723_tenant_org_governance_mysql8.sql"
test -f "$tenant_org_governance_migration"
mysql "$DB" < "$tenant_org_governance_migration"
mysql "$DB" < "$tenant_org_governance_migration"
tenant_org_governance_tables="$(mysql "$DB" -N -B -e "SELECT GROUP_CONCAT(table_name ORDER BY table_name) FROM information_schema.tables WHERE table_schema='$DB' AND table_name IN ('aihr_org_directory','aihr_tenant_org_binding');")"
test "$tenant_org_governance_tables" = 'aihr_org_directory,aihr_tenant_org_binding'
tenant_org_binding_unique="$(mysql "$DB" -N -B -e "SELECT GROUP_CONCAT(column_name ORDER BY seq_in_index) FROM information_schema.statistics WHERE table_schema='$DB' AND table_name='aihr_tenant_org_binding' AND index_name='uk_aihr_tenant_org_binding_tenant';")"
test "$tenant_org_binding_unique" = 'tenant_id'
tenant_org_binding_tenant_collation="$(mysql "$DB" -N -B -e "SELECT CONCAT(character_set_name,'|',collation_name) FROM information_schema.columns WHERE table_schema='$DB' AND table_name='aihr_tenant_org_binding' AND column_name='tenant_id';")"
test "$tenant_org_binding_tenant_collation" = 'utf8mb4|utf8mb4_general_ci'

mysql "$DB" < "$ROOT_DIR/backend/script/sql/update/aihr_20260715_position_sop_qualification_mysql8.sql"
mysql "$DB" < "$ROOT_DIR/backend/script/sql/update/aihr_20260715_position_sop_qualification_mysql8.sql"
position_sop_tables="$(mysql "$DB" -N -B -e "SELECT GROUP_CONCAT(table_name ORDER BY table_name) FROM information_schema.tables WHERE table_schema='$DB' AND table_name IN ('aihr_onboard_task','aihr_position_responsibility','aihr_qualification_gate','aihr_sop_applicability');")"
test "$position_sop_tables" = 'aihr_onboard_task,aihr_position_responsibility,aihr_qualification_gate,aihr_sop_applicability'
position_responsibility_columns="$(mysql "$DB" -N -B -e "SELECT COUNT(*) FROM information_schema.columns WHERE table_schema='$DB' AND table_name='aihr_position_responsibility' AND column_name IN ('position_code','responsibility_text','sop_id','sop_code');")"
test "$position_responsibility_columns" = '4'
sop_applicability_columns="$(mysql "$DB" -N -B -e "SELECT COUNT(*) FROM information_schema.columns WHERE table_schema='$DB' AND table_name='aihr_sop_applicability' AND column_name IN ('sop_id','sop_code','project_type','industry','org_scope');")"
test "$sop_applicability_columns" = '5'
onboard_task_columns="$(mysql "$DB" -N -B -e "SELECT COUNT(*) FROM information_schema.columns WHERE table_schema='$DB' AND table_name='aihr_onboard_task' AND column_name IN ('ext_party_id','position_code','task_type','status','assign_by');")"
test "$onboard_task_columns" = '5'
qualification_gate_columns="$(mysql "$DB" -N -B -e "SELECT COUNT(*) FROM information_schema.columns WHERE table_schema='$DB' AND table_name='aihr_qualification_gate' AND column_name IN ('ext_party_id','position_code','cert_id','passed','valid_thru');")"
test "$qualification_gate_columns" = '5'

mysql -e "CREATE DATABASE \`$LEGACY_DB\` CHARACTER SET utf8mb4 COLLATE utf8mb4_0900_ai_ci;"
mysql "$LEGACY_DB" <<'SQL'
CREATE TABLE aihr_candidate_material (
  id bigint NOT NULL AUTO_INCREMENT,
  status varchar(20) DEFAULT '待审核',
  PRIMARY KEY (id)
) ENGINE=InnoDB;
CREATE TABLE aihr_interview_result (
  id bigint NOT NULL AUTO_INCREMENT,
  session_id varchar(100) NOT NULL,
  total_score int,
  answers_json text,
  PRIMARY KEY (id)
) ENGINE=InnoDB;
SQL
mysql "$LEGACY_DB" < "$ROOT_DIR/backend/script/sql/update/aihr_20260715_candidate_interview_review_mysql8.sql"
mysql "$LEGACY_DB" < "$ROOT_DIR/backend/script/sql/update/aihr_20260715_candidate_interview_review_mysql8.sql"
candidate_interview_tables="$(mysql "$LEGACY_DB" -N -B -e "SELECT GROUP_CONCAT(table_name ORDER BY table_name) FROM information_schema.tables WHERE table_schema='$LEGACY_DB' AND table_name IN ('aihr_candidate_material','aihr_interview_result','aihr_candidate_employee_link');")"
test "$candidate_interview_tables" = 'aihr_candidate_employee_link,aihr_candidate_material,aihr_interview_result'
candidate_interview_columns="$(mysql "$LEGACY_DB" -N -B -e "SELECT COUNT(*) FROM information_schema.columns WHERE table_schema='$LEGACY_DB' AND ((table_name = 'aihr_candidate_material' AND column_name IN ('reviewer','reviewed_time')) OR (table_name = 'aihr_interview_result' AND column_name IN ('questions_json','reviewed_score','review_status','reviewer','review_note','reviewed_time')));")"
test "$candidate_interview_columns" = '8'

service_memory_migration="$ROOT_DIR/backend/script/sql/update/aihr_20260719_service_memory_mysql8.sql"
test -f "$service_memory_migration"
mysql "$DB" < "$service_memory_migration"
mysql "$DB" < "$service_memory_migration"
service_memory_tables="$(mysql "$DB" -N -B -e "SELECT GROUP_CONCAT(table_name ORDER BY table_name) FROM information_schema.tables WHERE table_schema='$DB' AND table_name IN ('aihr_memory_candidate','aihr_assistant_capture','aihr_service_memory','aihr_service_memory_version');")"
test "$service_memory_tables" = 'aihr_assistant_capture,aihr_memory_candidate,aihr_service_memory,aihr_service_memory_version'
assistant_capture_columns="$(mysql "$DB" -N -B -e "SELECT COUNT(*) FROM information_schema.columns WHERE table_schema='$DB' AND table_name='aihr_assistant_capture' AND column_name IN ('save_scope','suggested_type','delivery_status','confirm_idempotency_key','confirm_request_hash');")"
test "$assistant_capture_columns" = '5'
service_memory_version_columns="$(mysql "$DB" -N -B -e "SELECT COUNT(*) FROM information_schema.columns WHERE table_schema='$DB' AND ((table_name = 'aihr_memory_candidate' AND column_name IN ('version','confirm_idempotency_key','confirm_request_hash','source_conversation_id','source_request_id')) OR (table_name = 'aihr_service_memory' AND column_name IN ('project_code','version')) OR (table_name = 'aihr_service_memory_version' AND column_name IN ('memory_id','version')));")"
test "$service_memory_version_columns" = '9'

work_assistant_results_migration="$ROOT_DIR/backend/script/sql/update/aihr_20260721_work_assistant_results_mysql8.sql"
test -f "$work_assistant_results_migration"
mysql "$DB" < "$work_assistant_results_migration"
mysql "$DB" < "$work_assistant_results_migration"
work_assistant_result_tables="$(mysql "$DB" -N -B -e "SELECT GROUP_CONCAT(table_name ORDER BY table_name) FROM information_schema.tables WHERE table_schema='$DB' AND table_name IN ('aihr_assistant_capture_status_log','aihr_daily_work_result','aihr_knowledge_conversation');")"
test "$work_assistant_result_tables" = 'aihr_assistant_capture_status_log,aihr_daily_work_result,aihr_knowledge_conversation'
work_assistant_result_columns="$(mysql "$DB" -N -B -e "SELECT COUNT(*) FROM information_schema.columns WHERE table_schema='$DB' AND ((table_name = 'aihr_knowledge_conversation' AND column_name = 'project_code') OR (table_name = 'aihr_memory_candidate' AND column_name IN ('work_date','source_snapshot_json')) OR (table_name = 'aihr_assistant_capture' AND column_name IN ('work_date','business_status','source_snapshot_json')));")"
test "$work_assistant_result_columns" = '6'
work_assistant_snapshot_columns="$(mysql "$DB" -N -B -e "SELECT COUNT(*) FROM information_schema.columns WHERE table_schema='$DB' AND table_name='aihr_daily_work_result' AND column_name='content_hash';")"
test "$work_assistant_snapshot_columns" = '1'

broadcast_question_context_migration="$ROOT_DIR/backend/script/sql/update/aihr_20260722_broadcast_question_context_mysql8.sql"
test -f "$broadcast_question_context_migration"
mysql "$DB" < "$broadcast_question_context_migration"
mysql "$DB" < "$broadcast_question_context_migration"
broadcast_question_context_columns="$(mysql "$DB" -N -B -e "SELECT GROUP_CONCAT(column_name ORDER BY ordinal_position) FROM information_schema.columns WHERE table_schema='$DB' AND table_name='aihr_knowledge_conversation' AND column_name='broadcast_message_id';")"
test "$broadcast_question_context_columns" = 'broadcast_message_id'
broadcast_question_context_index="$(mysql "$DB" -N -B -e "SELECT GROUP_CONCAT(column_name ORDER BY seq_in_index) FROM information_schema.statistics WHERE table_schema='$DB' AND table_name='aihr_knowledge_conversation' AND index_name='idx_aihr_knowledge_conversation_broadcast';")"
test "$broadcast_question_context_index" = 'tenant_id,broadcast_message_id'

work_report_migration="$ROOT_DIR/backend/script/sql/update/aihr_20260719_work_report_idempotency_mysql8.sql"
test -f "$work_report_migration"
mysql "$DB" < "$work_report_migration"
mysql "$DB" < "$work_report_migration"
work_report_columns="$(mysql "$DB" -N -B -e "SELECT GROUP_CONCAT(column_name ORDER BY ordinal_position) FROM information_schema.columns WHERE table_schema='$DB' AND table_name='aihr_work_report' AND column_name IN ('request_key','request_hash');")"
test "$work_report_columns" = 'request_key,request_hash'
work_report_unique_index="$(mysql "$DB" -N -B -e "SELECT GROUP_CONCAT(column_name ORDER BY seq_in_index) FROM information_schema.statistics WHERE table_schema='$DB' AND table_name='aihr_work_report' AND index_name='uk_aihr_work_report_request';")"
test "$work_report_unique_index" = 'tenant_id,submitter_user_id,request_key'

mysql "$DB" -e "ALTER TABLE aihr_work_report DROP INDEX uk_aihr_work_report_request, ADD INDEX uk_aihr_work_report_request (tenant_id, request_key(20), submitter_user_id);"
mysql "$DB" < "$work_report_migration"
work_report_repaired_index="$(mysql "$DB" -N -B -e "SELECT CONCAT(MIN(non_unique),'|',GROUP_CONCAT(column_name ORDER BY seq_in_index),'|',SUM(sub_part IS NOT NULL)) FROM information_schema.statistics WHERE table_schema='$DB' AND table_name='aihr_work_report' AND index_name='uk_aihr_work_report_request';")"
test "$work_report_repaired_index" = '0|tenant_id,submitter_user_id,request_key|0'

mysql "$DB" <<'SQL'
ALTER TABLE aihr_work_report
  DROP INDEX uk_aihr_work_report_request,
  ADD INDEX uk_aihr_work_report_request (tenant_id, request_key(20), submitter_user_id);
INSERT INTO aihr_work_report (
  tenant_id, report_type, title, content, status,
  submitter_user_id, request_key, request_hash
) VALUES
  ('000000', 'CASE', 'duplicate migration guard 1', 'content', 'PENDING', 1, 'duplicate-migration-guard', REPEAT('a', 64)),
  ('000000', 'CASE', 'duplicate migration guard 2', 'content', 'PENDING', 1, 'duplicate-migration-guard', REPEAT('b', 64));
SQL
if mysql "$DB" < "$work_report_migration" >/dev/null 2>&1; then
  echo "FAIL: work-report migration must reject duplicate idempotency keys" >&2
  exit 1
fi
work_report_failed_repair_index="$(mysql "$DB" -N -B -e "SELECT CONCAT(MIN(non_unique),'|',GROUP_CONCAT(column_name ORDER BY seq_in_index),'|',SUM(sub_part IS NOT NULL)) FROM information_schema.statistics WHERE table_schema='$DB' AND table_name='aihr_work_report' AND index_name='uk_aihr_work_report_request';")"
test "$work_report_failed_repair_index" = '1|tenant_id,request_key,submitter_user_id|1'

mysql "$DB" <<'SQL'
CREATE TABLE aihr_knowledge_info (
  id bigint NOT NULL AUTO_INCREMENT,
  tenant_id varchar(20) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL,
  PRIMARY KEY (id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci;
CREATE TABLE aihr_knowledge_attach (
  id bigint NOT NULL AUTO_INCREMENT,
  tenant_id varchar(20) CHARACTER SET utf8mb4 COLLATE utf8mb4_general_ci NOT NULL,
  knowledge_id bigint NOT NULL,
  PRIMARY KEY (id)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_general_ci;
SQL
knowledge_category_migration="$ROOT_DIR/backend/script/sql/update/aihr_20260722_knowledge_category_mysql8.sql"
test -f "$knowledge_category_migration"
mysql "$DB" < "$knowledge_category_migration"
mysql "$DB" < "$knowledge_category_migration"
knowledge_category_table="$(mysql "$DB" -N -B -e "SELECT COUNT(*) FROM information_schema.tables WHERE table_schema='$DB' AND table_name='aihr_knowledge_category';")"
test "$knowledge_category_table" = '1'
knowledge_category_columns="$(mysql "$DB" -N -B -e "SELECT GROUP_CONCAT(column_name ORDER BY ordinal_position) FROM information_schema.columns WHERE table_schema='$DB' AND table_name='aihr_knowledge_category' AND column_name IN ('tenant_id','knowledge_id','code','name','status','sort_order');")"
test "$knowledge_category_columns" = 'tenant_id,knowledge_id,code,name,status,sort_order'
knowledge_attach_category_column="$(mysql "$DB" -N -B -e "SELECT COUNT(*) FROM information_schema.columns WHERE table_schema='$DB' AND table_name='aihr_knowledge_attach' AND column_name='category_id';")"
test "$knowledge_attach_category_column" = '1'
knowledge_attach_category_index="$(mysql "$DB" -N -B -e "SELECT GROUP_CONCAT(column_name ORDER BY seq_in_index) FROM information_schema.statistics WHERE table_schema='$DB' AND table_name='aihr_knowledge_attach' AND index_name='idx_aihr_knowledge_attach_category';")"
test "$knowledge_attach_category_index" = 'tenant_id,knowledge_id,category_id'
knowledge_category_code_index="$(mysql "$DB" -N -B -e "SELECT CONCAT(MIN(non_unique),'|',GROUP_CONCAT(column_name ORDER BY seq_in_index),'|',SUM(sub_part IS NOT NULL)) FROM information_schema.statistics WHERE table_schema='$DB' AND table_name='aihr_knowledge_category' AND index_name='uk_aihr_knowledge_category_code';")"
test "$knowledge_category_code_index" = '0|tenant_id,knowledge_id,code|0'
knowledge_category_collation="$(mysql "$DB" -N -B -e "SELECT table_collation FROM information_schema.tables WHERE table_schema='$DB' AND table_name='aihr_knowledge_category';")"
test "$knowledge_category_collation" = 'utf8mb4_general_ci'

broadcast_migration="$ROOT_DIR/backend/script/sql/update/aihr_20260722_broadcast_mysql8.sql"
test -f "$broadcast_migration"
mysql "$DB" < "$broadcast_migration"
mysql "$DB" < "$broadcast_migration"
broadcast_tables="$(mysql "$DB" -N -B -e "SELECT GROUP_CONCAT(table_name ORDER BY table_name) FROM information_schema.tables WHERE table_schema='$DB' AND table_name IN ('aihr_broadcast_message','aihr_broadcast_read','aihr_broadcast_version');")"
test "$broadcast_tables" = 'aihr_broadcast_message,aihr_broadcast_read,aihr_broadcast_version'
broadcast_publish_columns="$(mysql "$DB" -N -B -e "SELECT GROUP_CONCAT(column_name ORDER BY ordinal_position) FROM information_schema.columns WHERE table_schema='$DB' AND table_name='aihr_broadcast_message' AND column_name IN ('publish_request_key','publish_request_hash','withdraw_reason');")"
test "$broadcast_publish_columns" = 'publish_request_key,publish_request_hash,withdraw_reason'
broadcast_publish_unique_index="$(mysql "$DB" -N -B -e "SELECT CONCAT(MIN(non_unique),'|',GROUP_CONCAT(column_name ORDER BY seq_in_index),'|',SUM(sub_part IS NOT NULL)) FROM information_schema.statistics WHERE table_schema='$DB' AND table_name='aihr_broadcast_message' AND index_name='uk_aihr_broadcast_message_publish_request';")"
test "$broadcast_publish_unique_index" = '0|tenant_id,published_by,publish_request_key|0'
broadcast_read_unique_index="$(mysql "$DB" -N -B -e "SELECT CONCAT(MIN(non_unique),'|',GROUP_CONCAT(column_name ORDER BY seq_in_index),'|',SUM(sub_part IS NOT NULL)) FROM information_schema.statistics WHERE table_schema='$DB' AND table_name='aihr_broadcast_read' AND index_name='uk_aihr_broadcast_read';")"
test "$broadcast_read_unique_index" = '0|tenant_id,message_id,user_id|0'
broadcast_version_unique_index="$(mysql "$DB" -N -B -e "SELECT CONCAT(MIN(non_unique),'|',GROUP_CONCAT(column_name ORDER BY seq_in_index),'|',SUM(sub_part IS NOT NULL)) FROM information_schema.statistics WHERE table_schema='$DB' AND table_name='aihr_broadcast_version' AND index_name='uk_aihr_broadcast_version';")"
test "$broadcast_version_unique_index" = '0|tenant_id,message_id,version|0'

mysql "$DB" <<'SQL'
INSERT INTO aihr_broadcast_message (
  tenant_id, title, content, status, published_by, published_time, create_time, update_time
) VALUES ('000000', 'legacy M0 targeting default', 'legacy content', 'PUBLISHED', 1, NOW(), NOW(), NOW());
SQL

broadcast_targeting_migration="$ROOT_DIR/backend/script/sql/update/aihr_20260723_broadcast_targeting_mysql8.sql"
test -f "$broadcast_targeting_migration"
mysql "$DB" < "$broadcast_targeting_migration"
mysql "$DB" < "$broadcast_targeting_migration"
broadcast_targeting_column_contract="$(mysql "$DB" -N -B -e "SELECT CONCAT(column_name,'|',column_type,'|',is_nullable,'|',COALESCE(column_default,'<NULL>')) FROM information_schema.columns WHERE table_schema='$DB' AND table_name='aihr_broadcast_message' AND column_name IN ('required_read','target_payload_hash') ORDER BY FIELD(column_name,'required_read','target_payload_hash');")"
test "$broadcast_targeting_column_contract" = $'required_read|tinyint(1)|NO|0\ntarget_payload_hash|char(64)|YES|<NULL>'
broadcast_targeting_legacy_defaults="$(mysql "$DB" -N -B -e "SELECT CONCAT(required_read,'|',COALESCE(target_payload_hash,'NULL')) FROM aihr_broadcast_message WHERE title='legacy M0 targeting default';")"
test "$broadcast_targeting_legacy_defaults" = '0|NULL'
broadcast_targeting_tables="$(mysql "$DB" -N -B -e "SELECT GROUP_CONCAT(table_name ORDER BY table_name) FROM information_schema.tables WHERE table_schema='$DB' AND table_name IN ('aihr_broadcast_target_rule','aihr_broadcast_target_recipient');")"
test "$broadcast_targeting_tables" = 'aihr_broadcast_target_recipient,aihr_broadcast_target_rule'
broadcast_target_table_contract="$(mysql "$DB" -N -B -e "SELECT CONCAT(table_name,'.',column_name,'|',column_type,'|',is_nullable) FROM information_schema.columns WHERE table_schema='$DB' AND table_name IN ('aihr_broadcast_target_rule','aihr_broadcast_target_recipient') ORDER BY FIELD(table_name,'aihr_broadcast_target_rule','aihr_broadcast_target_recipient'), ordinal_position;")"
test "$broadcast_target_table_contract" = $'aihr_broadcast_target_rule.id|bigint|NO\naihr_broadcast_target_rule.tenant_id|varchar(20)|NO\naihr_broadcast_target_rule.message_id|bigint|NO\naihr_broadcast_target_rule.target_type|varchar(20)|NO\naihr_broadcast_target_rule.target_value|varchar(100)|NO\naihr_broadcast_target_rule.create_time|datetime|NO\naihr_broadcast_target_recipient.id|bigint|NO\naihr_broadcast_target_recipient.tenant_id|varchar(20)|NO\naihr_broadcast_target_recipient.message_id|bigint|NO\naihr_broadcast_target_recipient.recipient_key|varchar(180)|NO\naihr_broadcast_target_recipient.subject_ref|varchar(100)|NO\naihr_broadcast_target_recipient.user_id|bigint|YES\naihr_broadcast_target_recipient.target_status|varchar(20)|NO\naihr_broadcast_target_recipient.target_reason|varchar(100)|NO\naihr_broadcast_target_recipient.create_time|datetime|NO\naihr_broadcast_target_recipient.update_time|datetime|NO'
broadcast_target_rule_unique_index="$(mysql "$DB" -N -B -e "SELECT CONCAT(MIN(non_unique),'|',GROUP_CONCAT(column_name ORDER BY seq_in_index),'|',SUM(sub_part IS NOT NULL)) FROM information_schema.statistics WHERE table_schema='$DB' AND table_name='aihr_broadcast_target_rule' AND index_name='uk_aihr_broadcast_target_rule';")"
test "$broadcast_target_rule_unique_index" = '0|tenant_id,message_id,target_type,target_value|0'
broadcast_target_recipient_unique_index="$(mysql "$DB" -N -B -e "SELECT CONCAT(MIN(non_unique),'|',GROUP_CONCAT(column_name ORDER BY seq_in_index),'|',SUM(sub_part IS NOT NULL)) FROM information_schema.statistics WHERE table_schema='$DB' AND table_name='aihr_broadcast_target_recipient' AND index_name='uk_aihr_broadcast_target_recipient';")"
test "$broadcast_target_recipient_unique_index" = '0|tenant_id,message_id,recipient_key|0'

mysql "$DB" -e "ALTER TABLE aihr_broadcast_message DROP INDEX uk_aihr_broadcast_message_publish_request, DROP COLUMN publish_request_hash, DROP COLUMN publish_request_key, DROP COLUMN withdraw_reason;"
mysql "$DB" <<'SQL'
INSERT INTO aihr_broadcast_message (
  tenant_id, title, content, status, published_by, published_time, create_time, update_time
) VALUES ('000000', 'legacy broadcast', 'legacy content', 'PUBLISHED', 1, NOW(), NOW(), NOW());
SQL
mysql "$DB" < "$broadcast_migration"
broadcast_legacy_snapshot_count="$(mysql "$DB" -N -B -e "SELECT COUNT(*) FROM aihr_broadcast_version v JOIN aihr_broadcast_message m ON m.tenant_id=v.tenant_id AND m.id=v.message_id WHERE m.title='legacy broadcast' AND v.\`version\`=1;")"
test "$broadcast_legacy_snapshot_count" = '1'
broadcast_legacy_columns="$(mysql "$DB" -N -B -e "SELECT GROUP_CONCAT(column_name ORDER BY ordinal_position) FROM information_schema.columns WHERE table_schema='$DB' AND table_name='aihr_broadcast_message' AND column_name IN ('publish_request_key','publish_request_hash','withdraw_reason');")"
test "$broadcast_legacy_columns" = 'publish_request_key,publish_request_hash,withdraw_reason'

mysql "$DB" -e "ALTER TABLE aihr_broadcast_message DROP INDEX uk_aihr_broadcast_message_publish_request, ADD INDEX uk_aihr_broadcast_message_publish_request (tenant_id, publish_request_key(20), published_by);"
mysql "$DB" < "$broadcast_migration"
broadcast_repaired_publish_index="$(mysql "$DB" -N -B -e "SELECT CONCAT(MIN(non_unique),'|',GROUP_CONCAT(column_name ORDER BY seq_in_index),'|',SUM(sub_part IS NOT NULL)) FROM information_schema.statistics WHERE table_schema='$DB' AND table_name='aihr_broadcast_message' AND index_name='uk_aihr_broadcast_message_publish_request';")"
test "$broadcast_repaired_publish_index" = '0|tenant_id,published_by,publish_request_key|0'

mysql "$DB" <<'SQL'
ALTER TABLE aihr_broadcast_message
  DROP INDEX uk_aihr_broadcast_message_publish_request,
  ADD INDEX uk_aihr_broadcast_message_publish_request (tenant_id, publish_request_key(20), published_by);
INSERT INTO aihr_broadcast_message (
  tenant_id, title, content, status, published_by, published_time,
  publish_request_key, publish_request_hash, create_time, update_time
) VALUES
  ('000000', 'duplicate publish guard 1', 'content', 'PUBLISHED', 1, NOW(),
   'duplicate-publish-migration-guard', REPEAT('a', 64), NOW(), NOW()),
  ('000000', 'duplicate publish guard 2', 'content', 'PUBLISHED', 1, NOW(),
   'duplicate-publish-migration-guard', REPEAT('b', 64), NOW(), NOW());
SQL
if mysql "$DB" < "$broadcast_migration" >/dev/null 2>&1; then
  echo "FAIL: broadcast migration must reject duplicate publish idempotency keys" >&2
  exit 1
fi
broadcast_failed_publish_index="$(mysql "$DB" -N -B -e "SELECT CONCAT(MIN(non_unique),'|',GROUP_CONCAT(column_name ORDER BY seq_in_index),'|',SUM(sub_part IS NOT NULL)) FROM information_schema.statistics WHERE table_schema='$DB' AND table_name='aihr_broadcast_message' AND index_name='uk_aihr_broadcast_message_publish_request';")"
test "$broadcast_failed_publish_index" = '1|tenant_id,publish_request_key,published_by|1'

agent_migration="$ROOT_DIR/backend/script/sql/update/aihr_20260724_agent_orchestration_mysql8.sql"
test -f "$agent_migration"
mysql "$DB" < "$agent_migration"
mysql "$DB" < "$agent_migration"
agent_columns="$(mysql "$DB" -N -B -e "SELECT GROUP_CONCAT(column_name ORDER BY ordinal_position) FROM information_schema.columns WHERE table_schema='$DB' AND table_name='aihr_agent_run';")"
test "$agent_columns" = 'id,run_id,tenant_id,client_key,user_id,conversation_id,context_version,intent,tool,status,source_type,duration_ms,error_code,result_ref,create_time'
agent_run_unique="$(mysql "$DB" -N -B -e "SELECT CONCAT(MIN(non_unique),'|',GROUP_CONCAT(column_name ORDER BY seq_in_index)) FROM information_schema.statistics WHERE table_schema='$DB' AND table_name='aihr_agent_run' AND index_name='uk_aihr_agent_run';")"
test "$agent_run_unique" = '0|run_id'
agent_user_index="$(mysql "$DB" -N -B -e "SELECT GROUP_CONCAT(column_name ORDER BY seq_in_index) FROM information_schema.statistics WHERE table_schema='$DB' AND table_name='aihr_agent_run' AND index_name='idx_aihr_agent_run_user';")"
test "$agent_user_index" = 'tenant_id,user_id,create_time'

echo "PASS: AIHR legacy schema migrations are idempotent, including Agent run audit, knowledge-space categories, practice evidence, knowledge feedback, candidate interview review, position/SOP qualification contracts, assistant capture, work-report idempotency, broadcast publish/withdraw audit with M1 targeting defaults and target-table contracts, v1 snapshots, and trusted broadcast question context"