-- Migration: expand ai_model_configs with structured columns
-- Created at: 2026-03-12

BEGIN;

ALTER TABLE `ai_model_configs`
  ADD COLUMN `endpoint_url` varchar(512) DEFAULT NULL COMMENT '模型服务 API 地址' AFTER `provider`,
  ADD COLUMN `api_key` varchar(512) DEFAULT NULL COMMENT '模型服务 API Key' AFTER `endpoint_url`,
  ADD COLUMN `llm_model_name` varchar(128) DEFAULT NULL COMMENT 'LLM 模型名称' AFTER `api_key`,
  ADD COLUMN `llm_timeout` int(11) DEFAULT NULL COMMENT 'LLM 超时（秒）' AFTER `llm_model_name`,
  ADD COLUMN `llm_temperature` decimal(5,2) DEFAULT NULL COMMENT 'LLM temperature' AFTER `llm_timeout`,
  ADD COLUMN `llm_top_p` decimal(5,2) DEFAULT NULL COMMENT 'LLM top_p' AFTER `llm_temperature`,
  ADD COLUMN `llm_max_tokens` int(11) DEFAULT NULL COMMENT 'LLM 最大token' AFTER `llm_top_p`,
  ADD COLUMN `llm_system_prompt` text DEFAULT NULL COMMENT 'LLM 系统提示词' AFTER `llm_max_tokens`,
  ADD COLUMN `asr_model_name` varchar(128) DEFAULT NULL COMMENT 'ASR 模型名称' AFTER `llm_system_prompt`,
  ADD COLUMN `asr_vocabulary_id` varchar(255) DEFAULT NULL COMMENT 'ASR 热词词表ID' AFTER `asr_model_name`,
  ADD COLUMN `asr_speaker_count` int(11) DEFAULT NULL COMMENT 'ASR 说话人数' AFTER `asr_vocabulary_id`,
  ADD COLUMN `asr_language_hints` varchar(255) DEFAULT NULL COMMENT 'ASR 语言提示，逗号分隔' AFTER `asr_speaker_count`,
  ADD COLUMN `asr_disfluency_removal_enabled` tinyint(1) DEFAULT NULL COMMENT 'ASR 去口头语开关' AFTER `asr_language_hints`,
  ADD COLUMN `asr_diarization_enabled` tinyint(1) DEFAULT NULL COMMENT 'ASR 说话人分离开关' AFTER `asr_disfluency_removal_enabled`;

-- backfill structured columns from existing config_json
UPDATE `ai_model_configs`
SET
  endpoint_url = COALESCE(endpoint_url, JSON_UNQUOTE(JSON_EXTRACT(config_json, '$.endpoint_url'))),
  api_key = COALESCE(api_key, JSON_UNQUOTE(JSON_EXTRACT(config_json, '$.api_key')))
WHERE config_json IS NOT NULL;

UPDATE `ai_model_configs`
SET
  llm_model_name = COALESCE(llm_model_name, JSON_UNQUOTE(JSON_EXTRACT(config_json, '$.model_name'))),
  llm_timeout = COALESCE(llm_timeout, CAST(JSON_UNQUOTE(JSON_EXTRACT(config_json, '$.time_out')) AS UNSIGNED)),
  llm_temperature = COALESCE(llm_temperature, CAST(JSON_UNQUOTE(JSON_EXTRACT(config_json, '$.temperature')) AS DECIMAL(5,2))),
  llm_top_p = COALESCE(llm_top_p, CAST(JSON_UNQUOTE(JSON_EXTRACT(config_json, '$.top_p')) AS DECIMAL(5,2))),
  llm_max_tokens = COALESCE(llm_max_tokens, CAST(JSON_UNQUOTE(JSON_EXTRACT(config_json, '$.max_tokens')) AS UNSIGNED)),
  llm_system_prompt = COALESCE(llm_system_prompt, JSON_UNQUOTE(JSON_EXTRACT(config_json, '$.system_prompt')))
WHERE model_type = 'llm' AND config_json IS NOT NULL;

UPDATE `ai_model_configs`
SET
  asr_model_name = COALESCE(asr_model_name, JSON_UNQUOTE(JSON_EXTRACT(config_json, '$.model'))),
  asr_vocabulary_id = COALESCE(asr_vocabulary_id, JSON_UNQUOTE(JSON_EXTRACT(config_json, '$.vocabulary_id'))),
  asr_speaker_count = COALESCE(asr_speaker_count, CAST(JSON_UNQUOTE(JSON_EXTRACT(config_json, '$.speaker_count')) AS UNSIGNED)),
  asr_language_hints = COALESCE(
    asr_language_hints,
    REPLACE(REPLACE(REPLACE(JSON_EXTRACT(config_json, '$.language_hints'), '\"', ''), '[', ''), ']', '')
  ),
  asr_disfluency_removal_enabled = COALESCE(asr_disfluency_removal_enabled, CAST(JSON_UNQUOTE(JSON_EXTRACT(config_json, '$.disfluency_removal_enabled')) AS UNSIGNED)),
  asr_diarization_enabled = COALESCE(asr_diarization_enabled, CAST(JSON_UNQUOTE(JSON_EXTRACT(config_json, '$.diarization_enabled')) AS UNSIGNED))
WHERE model_type = 'audio' AND config_json IS NOT NULL;

COMMIT;