yao/page/page.go
2022-02-09 09:17:23 +08:00

114 lines
2.4 KiB
Go

package page
import (
"fmt"
"path"
jsoniter "github.com/json-iterator/go"
"github.com/yaoapp/gou"
"github.com/yaoapp/kun/exception"
"github.com/yaoapp/kun/log"
"github.com/yaoapp/yao/config"
"github.com/yaoapp/yao/share"
)
// Pages 已载入页面
var Pages = map[string]*Page{}
// Load 加载页面
func Load(cfg config.Config) error {
if share.BUILDIN {
return LoadBuildIn("pages", "")
}
var errs error = nil
if err := LoadFrom(path.Join(cfg.Root, "/kanban"), ""); err != nil {
log.Trace("load kanban error: %s ", err.Error())
errs = err
}
if err := LoadFrom(path.Join(cfg.Root, "/screen"), ""); err != nil {
log.Trace("load screen error: %s", err.Error())
errs = err
}
if err := LoadFrom(path.Join(cfg.Root, "/pages"), ""); err != nil {
log.Trace("load screen error: %s", err.Error())
errs = err
}
return errs
}
// LoadBuildIn 从制品中读取
func LoadBuildIn(dir string, prefix string) error {
return nil
}
// LoadFrom 从特定目录加载
func LoadFrom(dir string, prefix string) error {
if share.DirNotExists(dir) {
return fmt.Errorf("%s does not exists", dir)
}
err := share.Walk(dir, ".json", func(root, filename string) {
name := prefix + share.SpecName(root, filename)
content := share.ReadFile(filename)
_, err := LoadPage(content, name)
if err != nil {
log.With(log.F{"root": root, "file": filename}).Error(err.Error())
}
})
if err != nil {
return err
}
// Load Script
err = share.Walk(dir, ".js", func(root, filename string) {
name := prefix + share.SpecName(root, filename)
page := Select(name)
if page != nil {
script := share.ScriptName(filename)
content := share.ReadFile(filename)
page.LoadScript(string(content), script)
}
})
return err
}
// LoadPage 载入页面
func LoadPage(source []byte, name string) (*Page, error) {
page := &Page{
Flow: gou.Flow{
Name: name,
},
}
err := jsoniter.Unmarshal(source, page)
if err != nil {
log.With(log.F{"name": name, "source": source}).Error(err.Error())
return nil, err
}
page.Prepare()
page.SetupAPIs()
Pages[name] = page
return page, nil
}
// Select 读取已加载页面
func Select(name string) *Page {
page, has := Pages[name]
if !has {
exception.New(
fmt.Sprintf("Page:%s; 尚未加载", name),
400,
).Throw()
}
return page
}
// GetData 运行 flow 返回数值
func (page Page) GetData(params map[string]interface{}) interface{} {
return page.Flow.Exec(params)
}