package api

import (
	"encoding/json"
	"io"
	"net/http"
	"strings"

	"github.com/gin-gonic/gin"
)

func (a *API) localDocs(c *gin.Context) {
	if !isLoopbackRequest(c) {
		c.JSON(403, gin.H{"error": "仅允许本机管理文档"})
		return
	}
	docs, err := a.store.PublishedDocs()
	if err != nil {
		c.JSON(500, gin.H{"error": "文档读取失败"})
		return
	}
	c.JSON(200, gin.H{"projects": docs})
}

func (a *API) publishLocalDocs(c *gin.Context) {
	if !isLoopbackRequest(c) {
		c.JSON(403, gin.H{"error": "仅允许本机发布文档"})
		return
	}
	var req struct {
		ProjectID string            `json:"projectId"`
		Name      string            `json:"name"`
		Endpoints []json.RawMessage `json:"endpoints"`
	}
	data, err := io.ReadAll(io.LimitReader(c.Request.Body, 2<<20+1))
	if err != nil || len(data) > 2<<20 || json.Unmarshal(data, &req) != nil || len(req.Endpoints) > 500 || len(req.Endpoints) == 0 || len(req.ProjectID) > 128 || len(req.Name) > 200 || strings.TrimSpace(req.ProjectID) == "" || strings.TrimSpace(req.Name) == "" {
		c.JSON(400, gin.H{"error": "文档无效或超过限制（2 MB / 500 个接口）"})
		return
	}
	for _, endpoint := range req.Endpoints {
		var item struct {
			Method string `json:"method"`
			Path   string `json:"path"`
			Name   string `json:"name"`
		}
		if json.Unmarshal(endpoint, &item) != nil || item.Name == "" || item.Method == "" || !strings.HasPrefix(item.Path, "/") {
			c.JSON(400, gin.H{"error": "接口方法、名称或路径无效"})
			return
		}
	}
	doc, err := a.store.PublishDoc(req.ProjectID, req.Name, string(data))
	if err != nil {
		c.JSON(500, gin.H{"error": "文档发布失败"})
		return
	}
	c.JSON(200, doc)
}

func (a *API) revokeLocalDocs(c *gin.Context) {
	if !isLoopbackRequest(c) {
		c.JSON(403, gin.H{"error": "仅允许本机管理文档"})
		return
	}
	if err := a.store.RevokeDoc(c.Param("projectId")); err != nil {
		c.JSON(500, gin.H{"error": "撤销文档失败"})
		return
	}
	c.JSON(http.StatusOK, gin.H{"ok": true})
}