# workspace_files.dspy - 目录文件列表（拖拽上传区 + 可选中文件行）

import os
import json as _json

folder_id = (params_kw or {}).get('id', '').strip()

uid = await get_user()
if not uid:
    uid = 'user-01'

dbname = get_module_dbname('pipeline-sdlc')

async with DBPools().sqlorContext(dbname) as sor:
    ws_dir, _ = await get_workspace_dir(sor, uid)

if not folder_id or folder_id == '__root__':
    full_dir = ws_dir
else:
    full_dir = ws_dir + '/' + folder_id if ws_dir else folder_id

if not os.path.isdir(full_dir):
    return {"widgettype": "Text", "options": {"text": "目录不可用: " + folder_id, "cfontsize": 0.9}}

upload_url = entire_url("/pipeline-sdlc/api/workspace_upload.dspy")

# 拖拽上传脚本：读取文件 → base64 → form-encoded POST → 刷新浏览器
upload_script = (
    "var fs=event.params.files;"
    "if(!fs||!fs.length)return;"
    "for(var i=0;i<fs.length;i++){"
    "var f=fs[i].file;"
    "var b64=await new Promise(function(res){var r=new FileReader();r.onload=function(){res(r.result);};r.readAsDataURL(f);});"
    "var body=new URLSearchParams();"
    "body.append('id'," + _json.dumps(folder_id) + ");"
    "body.append('filename',f.name);"
    "body.append('filedata',b64);"
    "var resp=await fetch(" + _json.dumps(upload_url) + ",{method:'POST',body:body});"
    "var rj=await resp.json();"
    "if(rj.status!='ok'){var m=new bricks.Message({title:'上传失败',message:rj.message||'未知错误'});m.open();}"
    "}"
    "var rb=bricks.getWidgetById('ws_rb',bricks.app);"
    "if(rb){var cid=rb.current_id;rb.current_id=undefined;await rb.render_browser(cid);}"
)

# 拖拽上传区（固定高度）
droppable = {
    "widgettype": "Droppable",
    "options": {"accepts": ["*"], "padding": "10px"},
    "subwidgets": [
        {"widgettype": "Text", "options": {"text": "📥 拖拽文件到此处上传", "cfontsize": 0.85, "color": "#64748b", "halign": "middle"}}
    ],
    "binds": [{"wid": "self", "event": "filedrop", "actiontype": "script", "target": "self", "script": upload_script}]
}

files = []
try:
    entries = sorted(os.listdir(full_dir))
except Exception as e:
    return {"widgettype": "Text", "options": {"text": "读取错误: " + str(e), "cfontsize": 0.9}}

for name in entries:
    full = os.path.join(full_dir, name)
    if name.startswith('.'):
        continue
    if os.path.isfile(full):
        size = os.path.getsize(full)
        ext = os.path.splitext(name)[1].lower()
        is_text = ext in ['.md', '.py', '.js', '.html', '.css', '.json', '.txt', '.xml', '.yaml', '.yml',
                          '.toml', '.cfg', '.sh', '.sql', '.dspy', '.ui', '.csv', '.ts', '.tsx', '.jsx',
                          '.java', '.c', '.cpp', '.h', '.go', '.rs', '.rb', '.php', '.vue', '.scss', '.less']
        icon = "📄" if is_text else "🎬" if ext in ['.png', '.jpg', '.jpeg', '.gif', '.mp4', '.mp3', '.wav'] else "📦"

        if folder_id and folder_id != '__root__':
            rel_path = folder_id + '/' + name
        else:
            rel_path = name

        select_script = (
            "if(bricks.app._ws_sel_el)bricks.app._ws_sel_el.classList.remove('selected');"
            "this.dom_element.classList.add('selected');"
            "bricks.app._ws_sel_el=this.dom_element;"
            "bricks.app._ws_sel={id:" + _json.dumps(rel_path) + ",name:" + _json.dumps(name) + "};"
        )

        row = {
            "widgettype": "HBox",
            "options": {"padding": "6px 10px", "alignItems": "center", "gap": "8px", "cursor": "pointer"},
            "subwidgets": [
                {"widgettype": "Text", "options": {"text": icon, "cfontsize": 1.2}},
                {"widgettype": "Text", "options": {"text": name, "cfontsize": 0.9, "color": "#1e293b", "halign": "left", "css": "filler"}},
                {"widgettype": "Text", "options": {"text": f"{size/1024:.1f}KB", "cfontsize": 0.75, "color": "#94a3b8"}},
            ],
            "binds": [{"wid": "self", "event": "click", "actiontype": "script", "target": "self", "script": select_script}]
        }
        files.append(row)

if not files:
    file_list_content = [{"widgettype": "Text", "options": {"text": "(空目录)", "cfontsize": 0.85, "color": "#94a3b8", "padding": "8px"}}]
else:
    file_list_content = files

# 文件列表区：filler + VScrollPanel（占满剩余高度并可滚动）
file_list_panel = {
    "widgettype": "VScrollPanel",
    "options": {"css": "filler", "width": "100%"},
    "subwidgets": file_list_content
}

return {
    "widgettype": "VBox",
    "options": {"width": "100%", "height": "100%", "padding": "8px", "gap": "6px"},
    "subwidgets": [droppable, file_list_panel]
}