package handler

import (
	"fmt"
	"net/http"

	"github.com/gin-gonic/gin"
	"github.com/redis/go-redis/v9"
	"gorm.io/gorm"

	"spider/internal/service"
)

// SetupRouter builds and returns the Gin engine with all routes registered.
func SetupRouter(db *gorm.DB, rdb *redis.Client, taskSvc *service.TaskService) *gin.Engine {
	r := gin.Default()

	// Health check.
	r.GET("/ping", func(c *gin.Context) {
		c.JSON(http.StatusOK, gin.H{"message": "pong"})
	})

	api := r.Group("/api/v1")

	// Dashboard.
	dash := &DashboardHandler{db: db}
	api.GET("/dashboard", dash.Get)

	// Channels.
	ch := &ChannelHandler{db: db}
	api.GET("/channels", ch.List)
	api.GET("/channels/stats", ch.Stats)

	// Keywords.
	kw := &KeywordHandler{db: db}
	api.GET("/keywords", kw.List)
	api.POST("/keywords", kw.Create)
	api.PUT("/keywords/:id", kw.Update)
	api.DELETE("/keywords/:id", kw.Delete)

	// Seeds.
	sd := &SeedHandler{db: db}
	api.GET("/seeds", sd.List)
	api.POST("/seeds", sd.Create)
	api.PUT("/seeds/:id", sd.Update)
	api.DELETE("/seeds/:id", sd.Delete)

	// Merchants.
	mc := &MerchantHandler{db: db}
	api.GET("/merchants/stats", mc.Stats)
	api.GET("/merchants/raw", mc.ListRaw)
	api.GET("/merchants/clean", mc.ListClean)
	api.GET("/merchants/:id", mc.GetByID)

	// Nav sites.
	ns := &NavSiteHandler{db: db}
	api.GET("/nav-sites", ns.List)

	// Config / Settings.
	cfg := &ConfigHandler{db: db}
	api.GET("/config/settings", cfg.ListSettings)
	api.PUT("/config/settings/:key", cfg.UpdateSetting)

	// Tasks.
	th := NewTaskHandler(db, taskSvc, rdb)
	api.GET("/tasks", th.List)
	api.POST("/tasks/start", th.Start)
	api.GET("/tasks/:id", th.Get)
	api.POST("/tasks/:id/stop", th.Stop)
	api.GET("/tasks/:id/logs", th.Logs)

	return r
}

// ServerAddr returns the listen address string for the given port.
func ServerAddr(port int) string {
	return fmt.Sprintf(":%d", port)
}