use super::*;

pub(super) fn build_translation_tasks_report(
    state_dir: &Path,
    query: OfficialTextUnitTaskQuery,
    offset: usize,
    limit: usize,
) -> anyhow::Result<serde_json::Value> {
    let (_, version_state) = read_daemon_resource_state(state_dir)?;
    let current = version_state
        .as_ref()
        .and_then(|state| state.current_completed_version.as_ref());
    let Some(record) = current else {
        return Ok(serde_json::json!({ "available": false }));
    };
    let task_queue_path = record
        .resource_root
        .join(bat_infrastructure::OFFICIAL_TEXTUNIT_TASK_QUEUE_FILE);
    let task_repository_path =
        SqliteTranslationTaskRepository::repository_path(&record.resource_root);
    let Some(queue) = bat_infrastructure::read_textunit_task_queue_at(&record.resource_root)
        .map_err(anyhow::Error::msg)?
    else {
        return Ok(serde_json::json!({
            "available": false,
            "current_version_id": record.id,
            "resource_root": record.resource_root,
            "textunit_task_queue_path": task_queue_path,
            "task_repository_path": task_repository_path,
            "task_repository_available": false,
        }));
    };
    let task_repository_available =
        sqlite_file_exists_no_symlink(&task_repository_path, "翻译任务状态数据库")?;
    let (total_entries, entries) = if task_repository_available {
        query_translation_task_repository(&task_repository_path, &query, offset, limit)?
    } else {
        let mut queue_query = query.clone();
        queue_query.task_status = None;
        queue_query.has_failure_reason = None;
        let matches = bat_infrastructure::query_textunit_tasks(&queue, &queue_query);
        let persisted = matches
            .into_iter()
            .cloned()
            .map(|task| {
                bat_infrastructure::PersistedTranslationTask::from_queued_task(
                    task,
                    queue.generated_unix_seconds,
                )
            })
            .filter(|task| {
                query
                    .task_status
                    .as_ref()
                    .is_none_or(|status| task.task_status.as_str() == status)
            })
            .filter(|task| {
                query
                    .has_failure_reason
                    .is_none_or(|has_reason| task.failure_reason.is_some() == has_reason)
            })
            .collect::<Vec<_>>();
        let total_entries = persisted.len();
        let entries = persisted
            .into_iter()
            .skip(offset)
            .take(limit)
            .collect::<Vec<_>>();
        (total_entries as u64, entries)
    };
    Ok(serde_json::json!({
        "available": true,
        "current_version_id": record.id,
        "resource_root": record.resource_root,
        "textunit_task_queue_path": task_queue_path,
        "task_repository_path": task_repository_path,
        "task_repository_available": task_repository_available,
        "task_repository_schema_version": bat_infrastructure::TRANSLATION_TASK_SCHEMA_VERSION,
        "summary": queue.summary,
        "total_entries": total_entries,
        "offset": offset,
        "limit": limit,
        "query": translation_task_query_json(&query),
        "entries": entries,
    }))
}

pub(super) fn build_translation_handoff_report(
    state_dir: &Path,
) -> anyhow::Result<serde_json::Value> {
    let (_, version_state) = read_daemon_resource_state(state_dir)?;
    let current = version_state
        .as_ref()
        .and_then(|state| state.current_completed_version.as_ref());
    let Some(record) = current else {
        return Ok(serde_json::json!({ "available": false }));
    };
    let resource_root = &record.resource_root;
    let task_queue_path = resource_root.join(bat_infrastructure::OFFICIAL_TEXTUNIT_TASK_QUEUE_FILE);
    let handoff_path = resource_root.join(bat_infrastructure::TRANSLATION_HANDOFF_FILE);
    let repository_path = SqliteTranslationTaskRepository::repository_path(resource_root);
    let Some(queue) = bat_infrastructure::read_textunit_task_queue_at(resource_root)
        .map_err(anyhow::Error::msg)?
    else {
        return Ok(serde_json::json!({
            "available": false,
            "current_version_id": record.id,
            "resource_root": resource_root,
            "textunit_task_queue_path": task_queue_path,
            "translation_handoff_path": handoff_path,
            "task_repository_path": repository_path,
        }));
    };
    let task_repository_available =
        sqlite_file_exists_no_symlink(&repository_path, "翻译任务状态数据库")?;
    let tasks = if task_repository_available {
        let runtime = tokio::runtime::Builder::new_current_thread()
            .enable_all()
            .build()?;
        runtime.block_on(async {
            let repository = SqliteTranslationTaskRepository::open(&repository_path)
                .await
                .map_err(|error| anyhow::anyhow!("{error}"))?;
            repository
                .list(&OfficialTextUnitTaskQuery::default())
                .await
                .map_err(|error| anyhow::anyhow!("{error}"))
        })?
    } else {
        queue
            .tasks
            .iter()
            .cloned()
            .map(|task| {
                bat_infrastructure::PersistedTranslationTask::from_queued_task(
                    task,
                    queue.generated_unix_seconds,
                )
            })
            .collect::<Vec<_>>()
    };
    let handoff = bat_infrastructure::build_translation_handoff(&queue, &tasks);
    let handoff_file_available = sqlite_file_exists_no_symlink(&handoff_path, "翻译 handoff")?;
    Ok(serde_json::json!({
        "available": true,
        "current_version_id": record.id,
        "resource_root": resource_root,
        "textunit_task_queue_path": task_queue_path,
        "translation_handoff_path": handoff_path,
        "translation_handoff_file_available": handoff_file_available,
        "task_repository_path": repository_path,
        "task_repository_available": task_repository_available,
        "task_repository_schema_version": bat_infrastructure::TRANSLATION_TASK_SCHEMA_VERSION,
        "handoff_schema_version": bat_infrastructure::TRANSLATION_HANDOFF_SCHEMA_VERSION,
        "handoff": handoff,
    }))
}

pub(super) fn update_translation_task_status_report(
    state_dir: &Path,
    params: Option<&serde_json::Value>,
) -> anyhow::Result<serde_json::Value> {
    let task_id = rpc_string_param(params, "task_id")
        .ok_or_else(|| anyhow::anyhow!("translation.task.update 缺少 task_id"))?;
    let status_label = rpc_string_param(params, "status")
        .ok_or_else(|| anyhow::anyhow!("translation.task.update 缺少 status"))?;
    let status = TranslationTaskStatus::parse(status_label)
        .ok_or_else(|| anyhow::anyhow!("不支持的翻译任务 worker 状态：{status_label}"))?;
    let failure_reason = rpc_string_param(params, "failure_reason")
        .or_else(|| rpc_string_param(params, "reason"))
        .map(str::to_string);
    let provider_run_id = rpc_string_param(params, "provider_run_id").map(str::to_string);
    let (_, version_state) = read_daemon_resource_state(state_dir)?;
    let current = version_state
        .as_ref()
        .and_then(|state| state.current_completed_version.as_ref())
        .ok_or_else(|| anyhow::anyhow!("没有可更新翻译任务的当前官方 release"))?;
    let repository_path = SqliteTranslationTaskRepository::repository_path(&current.resource_root);
    if !sqlite_file_exists_no_symlink(&repository_path, "翻译任务状态数据库")? {
        return Err(anyhow::anyhow!(
            "翻译任务状态数据库不存在：{}",
            repository_path.display()
        ));
    }

    let runtime = tokio::runtime::Builder::new_current_thread()
        .enable_all()
        .build()?;
    let task = runtime.block_on(async {
        let repository = SqliteTranslationTaskRepository::open(&repository_path)
            .await
            .map_err(|error| anyhow::anyhow!("{error}"))?;
        repository
            .update_status(task_id, status, failure_reason, provider_run_id)
            .await
            .map_err(|error| anyhow::anyhow!("{error}"))
    })?;
    Ok(serde_json::json!({
        "available": true,
        "current_version_id": current.id,
        "task_repository_path": repository_path,
        "entry": task,
    }))
}

pub(super) fn textunit_query_json(query: &OfficialTextUnitQuery) -> serde_json::Value {
    serde_json::json!({
        "destination": query.destination.clone(),
        "path_pattern": query.path_pattern.clone(),
        "archive_entry": query.archive_entry.clone(),
        "path_id": query.path_id,
        "class_id": query.class_id,
        "field_path": query.field_path.clone(),
        "format": query.format.clone(),
    })
}

pub(super) fn translation_task_query_json(query: &OfficialTextUnitTaskQuery) -> serde_json::Value {
    serde_json::json!({
        "task_id": query.task_id.clone(),
        "official_release_id": query.official_release_id.clone(),
        "destination": query.destination.clone(),
        "path_pattern": query.path_pattern.clone(),
        "archive_entry": query.archive_entry.clone(),
        "status": query.status.clone(),
        "task_status": query.task_status.clone(),
        "parse_status": query.parse_status.clone(),
        "text_unit_format": query.text_unit_format.clone(),
        "has_reason": query.has_reason,
        "has_failure_reason": query.has_failure_reason,
    })
}