feat: add template detail and config APIs

backend/app/api/templates.py

@@ -1,8 +1,16 @@
+import json
+
 from fastapi import APIRouter, Depends, File, Form, HTTPException, UploadFile
 from sqlalchemy.orm import Session
 
 from ..database import get_db
+from ..models.block_config import BlockConfig
+from ..models.template import Template
+from ..models.template_block import TemplateBlock
+from ..schemas.template import BlockConfigPayload
+from ..services.doc_parser import build_tree
 from ..services.doc_parser import parse_document
+from ..services.html_generator import generate_preview_html
 from ..services.template_service import create_template_record, save_template_blocks, store_template_file
 
 
@@ -37,3 +45,120 @@ def upload_template(
         },
         "message": "ok",
     }
+
+
+@router.get("/{template_id}")
+def get_template_detail(template_id: int, db: Session = Depends(get_db)):
+    template = db.get(Template, template_id)
+    if not template:
+        raise HTTPException(status_code=404, detail="模板不存在")
+
+    block_records = (
+        db.query(TemplateBlock)
+        .filter(TemplateBlock.template_id == template_id)
+        .order_by(TemplateBlock.sort_order.asc(), TemplateBlock.id.asc())
+        .all()
+    )
+    blocks = [serialize_block(block) for block in block_records]
+    tree = build_tree([block.copy() for block in blocks])
+    configs = {
+        config.block_id: serialize_config(config)
+        for config in db.query(BlockConfig).filter(BlockConfig.template_id == template_id).all()
+    }
+
+    return {
+        "data": {
+            "template": serialize_template(template),
+            "preview_html": generate_preview_html(blocks),
+            "blocks": blocks,
+            "tree": tree,
+            "configs": configs,
+        },
+        "message": "ok",
+    }
+
+
+@router.post("/{template_id}/blocks/{block_id}/config")
+def save_block_config(
+    template_id: int,
+    block_id: str,
+    payload: BlockConfigPayload,
+    db: Session = Depends(get_db),
+):
+    block = (
+        db.query(TemplateBlock)
+        .filter(TemplateBlock.template_id == template_id, TemplateBlock.block_id == block_id)
+        .first()
+    )
+    if not block:
+        raise HTTPException(status_code=404, detail="模板区域不存在")
+
+    config = (
+        db.query(BlockConfig)
+        .filter(BlockConfig.template_id == template_id, BlockConfig.block_id == block_id)
+        .first()
+    )
+    if not config:
+        config = BlockConfig(template_id=template_id, block_id=block_id)
+        db.add(config)
+
+    config.region_name = payload.region_name
+    config.region_type = payload.region_type
+    config.data_sources = json.dumps(payload.data_sources, ensure_ascii=False)
+    config.prompt = payload.prompt
+    config.output_format = payload.output_format
+    config.need_review = payload.need_review
+    config.remark = payload.remark
+    config.enabled = payload.enabled
+
+    db.commit()
+    db.refresh(config)
+    return {"data": serialize_config(config), "message": "ok"}
+
+
+def serialize_template(template: Template) -> dict:
+    return {
+        "id": template.id,
+        "name": template.name,
+        "type": template.type,
+        "version": template.version,
+        "original_file_path": template.original_file_path,
+        "status": template.status,
+        "created_by": template.created_by,
+        "created_at": template.created_at.isoformat() if template.created_at else None,
+        "updated_at": template.updated_at.isoformat() if template.updated_at else None,
+    }
+
+
+def serialize_block(block: TemplateBlock) -> dict:
+    return {
+        "id": block.id,
+        "template_id": block.template_id,
+        "block_id": block.block_id,
+        "parent_block_id": block.parent_block_id,
+        "type": block.block_type,
+        "block_type": block.block_type,
+        "block_name": block.block_name,
+        "text": block.text_preview or "",
+        "text_preview": block.text_preview,
+        "level": block.level,
+        "sort_order": block.sort_order,
+        "table_rows": block.table_rows,
+        "table_cols": block.table_cols,
+    }
+
+
+def serialize_config(config: BlockConfig) -> dict:
+    return {
+        "id": config.id,
+        "template_id": config.template_id,
+        "block_id": config.block_id,
+        "region_name": config.region_name,
+        "region_type": config.region_type,
+        "data_sources": json.loads(config.data_sources or "[]"),
+        "prompt": config.prompt,
+        "output_format": config.output_format,
+        "need_review": config.need_review,
+        "remark": config.remark,
+        "enabled": config.enabled,
+    }