package transport

import (
	"strconv"
	"time"

	"github.com/gin-gonic/gin"

	"github.com/geo-platform/tenant-api/internal/bootstrap"
	"github.com/geo-platform/tenant-api/internal/shared/response"
	"github.com/geo-platform/tenant-api/internal/tenant/app"
)

type ScheduleTaskHandler struct {
	svc *app.ScheduleTaskService
}

func NewScheduleTaskHandler(a *bootstrap.App) *ScheduleTaskHandler {
	return &ScheduleTaskHandler{svc: app.NewScheduleTaskService(a.DB, a.AuditLogs).WithCache(a.Cache)}
}

func (h *ScheduleTaskHandler) List(c *gin.Context) {
	params := app.ScheduleTaskListParams{
		Page:     1,
		PageSize: 20,
	}
	if v := c.Query("page"); v != "" {
		if p, err := strconv.Atoi(v); err == nil {
			params.Page = p
		}
	}
	if v := c.Query("page_size"); v != "" {
		if ps, err := strconv.Atoi(v); err == nil {
			params.PageSize = ps
		}
	}
	if v := c.Query("prompt_rule_id"); v != "" {
		if rid, err := strconv.ParseInt(v, 10, 64); err == nil {
			params.PromptRuleID = &rid
		}
	}
	if v := c.Query("status"); v != "" {
		params.Status = &v
	}
	if v := c.Query("keyword"); v != "" {
		params.Keyword = &v
	}
	if v := c.Query("created_from"); v != "" {
		parsed, err := time.Parse(time.RFC3339, v)
		if err != nil {
			response.Error(c, response.ErrBadRequest(40014, "invalid_created_from", "created_from must be RFC3339"))
			return
		}
		params.CreatedFrom = &parsed
	}
	if v := c.Query("created_to"); v != "" {
		parsed, err := time.Parse(time.RFC3339, v)
		if err != nil {
			response.Error(c, response.ErrBadRequest(40015, "invalid_created_to", "created_to must be RFC3339"))
			return
		}
		params.CreatedTo = &parsed
	}

	data, err := h.svc.List(c.Request.Context(), params)
	if err != nil {
		response.Error(c, err)
		return
	}
	response.Success(c, data)
}

func (h *ScheduleTaskHandler) Detail(c *gin.Context) {
	id, err := strconv.ParseInt(c.Param("id"), 10, 64)
	if err != nil {
		response.Error(c, response.ErrBadRequest(40001, "invalid_id", "schedule task id must be a number"))
		return
	}
	data, err := h.svc.Detail(c.Request.Context(), id)
	if err != nil {
		response.Error(c, err)
		return
	}
	response.Success(c, data)
}

func (h *ScheduleTaskHandler) Create(c *gin.Context) {
	var req app.ScheduleTaskRequest
	if err := c.ShouldBindJSON(&req); err != nil {
		response.Error(c, response.ErrBadRequest(40001, "invalid_params", err.Error()))
		return
	}
	data, err := h.svc.Create(c.Request.Context(), req)
	if err != nil {
		response.Error(c, err)
		return
	}
	response.SuccessWithStatus(c, 201, data)
}

func (h *ScheduleTaskHandler) Update(c *gin.Context) {
	id, err := strconv.ParseInt(c.Param("id"), 10, 64)
	if err != nil {
		response.Error(c, response.ErrBadRequest(40001, "invalid_id", "schedule task id must be a number"))
		return
	}
	var req app.ScheduleTaskRequest
	if err := c.ShouldBindJSON(&req); err != nil {
		response.Error(c, response.ErrBadRequest(40001, "invalid_params", err.Error()))
		return
	}
	if err := h.svc.Update(c.Request.Context(), id, req); err != nil {
		response.Error(c, err)
		return
	}
	response.Success(c, nil)
}

func (h *ScheduleTaskHandler) Delete(c *gin.Context) {
	id, err := strconv.ParseInt(c.Param("id"), 10, 64)
	if err != nil {
		response.Error(c, response.ErrBadRequest(40001, "invalid_id", "schedule task id must be a number"))
		return
	}
	if err := h.svc.Delete(c.Request.Context(), id); err != nil {
		response.Error(c, err)
		return
	}
	response.Success(c, nil)
}

func (h *ScheduleTaskHandler) ToggleStatus(c *gin.Context) {
	id, err := strconv.ParseInt(c.Param("id"), 10, 64)
	if err != nil {
		response.Error(c, response.ErrBadRequest(40001, "invalid_id", "schedule task id must be a number"))
		return
	}
	var req app.ScheduleTaskStatusRequest
	if err := c.ShouldBindJSON(&req); err != nil {
		response.Error(c, response.ErrBadRequest(40001, "invalid_params", err.Error()))
		return
	}
	if err := h.svc.ToggleStatus(c.Request.Context(), id, req); err != nil {
		response.Error(c, err)
		return
	}
	response.Success(c, nil)
}