package handler

import (
	"net/http"
	"strconv"

	"sql-platform/internal/model"

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

// GET /api/v1/redis/:id/info
func RedisInfo(c *gin.Context) {
	id := c.Param("id")
	var instance model.Instance
	if err := model.DB.First(&instance, id).Error; err != nil {
		c.JSON(http.StatusNotFound, gin.H{"detail": "Instance not found"})
		return
	}
	// TODO: actual Redis INFO command
	c.JSON(http.StatusOK, gin.H{
		"redis_version": "placeholder",
		"used_memory":   "0",
		"connected_clients": "0",
		"db_size":       0,
	})
}

// GET /api/v1/redis/:id/dbsize
func RedisDbsize(c *gin.Context) {
	id := c.Param("id")
	var instance model.Instance
	if err := model.DB.First(&instance, id).Error; err != nil {
		c.JSON(http.StatusNotFound, gin.H{"detail": "Instance not found"})
		return
	}
	// TODO: actual DBSIZE
	c.JSON(http.StatusOK, gin.H{"db_size": 0})
}

// GET /api/v1/redis/:id/keys
func RedisScanKeys(c *gin.Context) {
	id := c.Param("id")
	_ = c.Query("db")
	_ = c.Query("pattern")
	_ = c.Query("count")
	_ = c.Query("cursor")
	_ = c.Query("type")

	var instance model.Instance
	if err := model.DB.First(&instance, id).Error; err != nil {
		c.JSON(http.StatusNotFound, gin.H{"detail": "Instance not found"})
		return
	}
	// TODO: actual SCAN command
	c.JSON(http.StatusOK, gin.H{
		"keys":   []interface{}{},
		"cursor": 0,
		"total":  0,
	})
}

// GET /api/v1/redis/:id/keys/:key
func RedisGetKeyDetail(c *gin.Context) {
	id := c.Param("id")
	key := c.Param("key")
	_ = key

	var instance model.Instance
	if err := model.DB.First(&instance, id).Error; err != nil {
		c.JSON(http.StatusNotFound, gin.H{"detail": "Instance not found"})
		return
	}
	// TODO: actual key detail lookup
	c.JSON(http.StatusOK, gin.H{
		"key":    key,
		"type":   "string",
		"value":  "",
		"ttl":    -1,
	})
}

// GET /api/v1/redis/:id/slowlog
func RedisSlowlog(c *gin.Context) {
	id := c.Param("id")
	var instance model.Instance
	if err := model.DB.First(&instance, id).Error; err != nil {
		c.JSON(http.StatusNotFound, gin.H{"detail": "Instance not found"})
		return
	}
	// TODO: actual SLOWLOG GET
	c.JSON(http.StatusOK, []interface{}{})
}

// GET /api/v1/redis/:id/clients
func RedisClients(c *gin.Context) {
	id := c.Param("id")
	var instance model.Instance
	if err := model.DB.First(&instance, id).Error; err != nil {
		c.JSON(http.StatusNotFound, gin.H{"detail": "Instance not found"})
		return
	}
	// TODO: actual CLIENT LIST
	c.JSON(http.StatusOK, []interface{}{})
}

// POST /api/v1/redis/:id/command
func RedisExecuteCommand(c *gin.Context) {
	id := c.Param("id")
	var instance model.Instance
	if err := model.DB.First(&instance, id).Error; err != nil {
		c.JSON(http.StatusNotFound, gin.H{"detail": "Instance not found"})
		return
	}
	// TODO: actual command execution
	c.JSON(http.StatusOK, gin.H{"result": "Command execution not implemented"})
}

// POST /api/v1/redis/:id/keys
func RedisCreateKey(c *gin.Context) {
	id := c.Param("id")
	_, _ = id, c.Request.Body
	c.JSON(http.StatusOK, gin.H{"message": "Key created (placeholder)"})
}

// DELETE /api/v1/redis/:id/keys/:key
func RedisDeleteKey(c *gin.Context) {
	id := c.Param("id")
	key := c.Param("key")
	_, _ = id, key
	c.JSON(http.StatusOK, gin.H{"message": "Key deleted (placeholder)"})
}

// POST /api/v1/workflows/:id/clone
func CloneWorkflow(c *gin.Context) {
	id, _ := strconv.Atoi(c.Param("id"))
	var wf model.WorkflowDefinition
	if err := model.DB.First(&wf, id).Error; err != nil {
		c.JSON(http.StatusNotFound, gin.H{"detail": "Workflow not found"})
		return
	}
	// clone
	newWf := model.WorkflowDefinition{
		Name:        wf.Name + "-副本",
		Description: wf.Description,
		Category:    wf.Category,
		IsActive:    wf.IsActive,
		FlowConfig:  wf.FlowConfig,
	}
	model.DB.Create(&newWf)
	c.JSON(http.StatusCreated, newWf)
}