package company

import (
	"strconv"
	"tm/internal/user"
	"tm/pkg/logger"
	"tm/pkg/response"

	"github.com/labstack/echo/v4"
)

// Handler handles HTTP requests for company operations
type Handler struct {
	service     Service
	userHandler *user.Handler
	logger      logger.Logger
}

// NewHandler creates a new company handler
func NewHandler(service Service, userHandler *user.Handler, logger logger.Logger) *Handler {
	return &Handler{
		service:     service,
		userHandler: userHandler,
		logger:      logger,
	}
}

// RegisterRoutes registers company routes
func (h *Handler) RegisterRoutes(e *echo.Echo) {
	// Admin routes for web panel
	adminV1 := e.Group("/admin/v1/companies")
	adminV1.Use(h.userHandler.AuthMiddleware())
	adminV1.POST("", h.CreateCompany)
	adminV1.GET("", h.ListCompanies)
	adminV1.GET("/:id", h.GetCompany)
	adminV1.PUT("/:id", h.UpdateCompany)
	adminV1.DELETE("/:id", h.DeleteCompany)
	adminV1.GET("/search", h.SearchCompanies)
	adminV1.PATCH("/:id/status", h.UpdateCompanyStatus)
	adminV1.PATCH("/:id/verification", h.UpdateCompanyVerification)
	adminV1.PUT("/:id/tags", h.UpdateCompanyTags)
	adminV1.POST("/:id/tags/add", h.AddTags)
	adminV1.POST("/:id/tags/remove", h.RemoveTags)
	adminV1.POST("/:id/verify", h.VerifyCompany)
	adminV1.POST("/:id/suspend", h.SuspendCompany)
	adminV1.POST("/:id/activate", h.ActivateCompany)
	adminV1.GET("/stats", h.GetCompanyStats)
	adminV1.GET("/type/:type", h.GetCompaniesByType)
	adminV1.GET("/status/:status", h.GetCompaniesByStatus)
	adminV1.GET("/industry/:industry", h.GetCompaniesByIndustry)
}

// Web Panel Endpoints

// CreateCompany creates a new company (Web Panel)
// @Summary Create a new company
// @Description Create a new company with comprehensive information including business details, address, tags, and customer assignment. This endpoint is used by the web panel for full company registration.
// @Tags Companies-Admin
// @Accept json
// @Produce json
// @Param company body CreateCompanyForm true "Company information including type, business details, address, tags, and optional customer assignment"
// @Success 201 {object} response.APIResponse{data=CompanyResponse} "Company created successfully"
// @Failure 400 {object} response.APIResponse "Bad request - Invalid input data"
// @Failure 409 {object} response.APIResponse "Conflict - Company with this name/registration/tax ID already exists"
// @Failure 422 {object} response.APIResponse "Validation error - Invalid request data"
// @Failure 500 {object} response.APIResponse "Internal server error"
// @Security BearerAuth
// @Router /admin/v1/companies [post]
func (h *Handler) CreateCompany(c echo.Context) error {
	form, err := response.Parse[CreateCompanyForm](c)
	if err != nil {
		return response.ValidationError(c, "Invalid request data", err.Error())
	}

	// Get user ID from JWT token context
	createdBy, err := user.GetUserIDFromContext(c)
	if err != nil {
		return response.Unauthorized(c, "User not authenticated")
	}

	company, err := h.service.CreateCompany(c.Request().Context(), form, &createdBy)
	if err != nil {
		if err.Error() == "company with this name already exists" ||
			err.Error() == "company with this registration number already exists" ||
			err.Error() == "company with this tax ID already exists" {
			return response.Conflict(c, err.Error())
		}
		return response.InternalServerError(c, "Failed to create company")
	}

	return response.Created(c, company.ToResponse(), "Company created successfully")
}

// GetCompany retrieves a company by ID (Web Panel)
// @Summary Get company by ID
// @Description Retrieve detailed company information by company ID
// @Tags Companies-Admin
// @Accept json
// @Produce json
// @Param id path string true "Company ID"
// @Success 200 {object} response.APIResponse{data=CompanyResponse} "Company retrieved successfully"
// @Failure 400 {object} response.APIResponse "Bad request - Invalid company ID"
// @Failure 404 {object} response.APIResponse "Not found - Company not found"
// @Failure 500 {object} response.APIResponse "Internal server error"
// @Security BearerAuth
// @Router /admin/v1/companies/{id} [get]
func (h *Handler) GetCompany(c echo.Context) error {
	id := c.Param("id")

	company, err := h.service.GetCompanyByID(c.Request().Context(), id)
	if err != nil {
		if err.Error() == "company not found" {
			return response.NotFound(c, "Company not found")
		}
		return response.InternalServerError(c, "Failed to get company")
	}

	return response.Success(c, company.ToResponse(), "Company retrieved successfully")
}

// UpdateCompany updates a company (Web Panel)
// @Summary Update company information
// @Description Update company information including business details, address, tags, and customer assignment
// @Tags Companies-Admin
// @Accept json
// @Produce json
// @Param id path string true "Company ID"
// @Param company body UpdateCompanyForm true "Company update information"
// @Success 200 {object} response.APIResponse{data=CompanyResponse} "Company updated successfully"
// @Failure 400 {object} response.APIResponse "Bad request - Invalid input data"
// @Failure 404 {object} response.APIResponse "Not found - Company not found"
// @Failure 409 {object} response.APIResponse "Conflict - Company with this name/registration/tax ID already exists"
// @Failure 422 {object} response.APIResponse "Validation error - Invalid request data"
// @Failure 500 {object} response.APIResponse "Internal server error"
// @Security BearerAuth
// @Router /admin/v1/companies/{id} [put]
func (h *Handler) UpdateCompany(c echo.Context) error {
	id := c.Param("id")
	form, err := response.Parse[UpdateCompanyForm](c)
	if err != nil {
		return response.ValidationError(c, "Invalid request data", err.Error())
	}

	// Get user ID from JWT token context
	updatedBy, err := user.GetUserIDFromContext(c)
	if err != nil {
		return response.Unauthorized(c, "User not authenticated")
	}

	company, err := h.service.UpdateCompany(c.Request().Context(), id, form, &updatedBy)
	if err != nil {
		if err.Error() == "company not found" {
			return response.NotFound(c, "Company not found")
		}
		if err.Error() == "company with this name already exists" ||
			err.Error() == "company with this registration number already exists" ||
			err.Error() == "company with this tax ID already exists" {
			return response.Conflict(c, err.Error())
		}
		return response.InternalServerError(c, "Failed to update company")
	}

	return response.Success(c, company.ToResponse(), "Company updated successfully")
}

// DeleteCompany deletes a company (Web Panel)
// @Summary Delete company
// @Description Soft delete a company by setting status to inactive
// @Tags Companies-Admin
// @Accept json
// @Produce json
// @Param id path string true "Company ID"
// @Success 200 {object} response.APIResponse "Company deleted successfully"
// @Failure 400 {object} response.APIResponse "Bad request - Invalid company ID"
// @Failure 404 {object} response.APIResponse "Not found - Company not found"
// @Failure 500 {object} response.APIResponse "Internal server error"
// @Security BearerAuth
// @Router /admin/v1/companies/{id} [delete]
func (h *Handler) DeleteCompany(c echo.Context) error {
	id := c.Param("id")

	// Get user ID from JWT token context
	deletedBy, err := user.GetUserIDFromContext(c)
	if err != nil {
		return response.Unauthorized(c, "User not authenticated")
	}

	err = h.service.DeleteCompany(c.Request().Context(), id, &deletedBy)
	if err != nil {
		if err.Error() == "company not found" {
			return response.NotFound(c, "Company not found")
		}
		return response.InternalServerError(c, "Failed to delete company")
	}

	return response.Success(c, map[string]interface{}{
		"message": "Company deleted successfully",
	}, "Company deleted successfully")
}

// ListCompanies lists companies with filters and pagination (Web Panel)
// @Summary List companies with filters and pagination
// @Description Retrieve a paginated list of companies with advanced filtering options including search, type, status, industry, verification status, tags, and business criteria. Supports sorting and pagination.
// @Tags Companies-Admin
// @Accept json
// @Produce json
// @Param search query string false "Search term to filter companies by name, description, or industry"
// @Param type query string false "Filter by company type" Enums(private, public, government, ngo, startup)
// @Param status query string false "Filter by company status" Enums(active, inactive, suspended, pending)
// @Param industry query string false "Filter by industry"
// @Param is_verified query boolean false "Filter by verification status"
// @Param is_compliant query boolean false "Filter by compliance status"
// @Param has_customer query boolean false "Filter by customer assignment status"
// @Param cpv_codes query array false "Filter by CPV codes"
// @Param categories query array false "Filter by categories"
// @Param keywords query array false "Filter by keywords"
// @Param specializations query array false "Filter by specializations"
// @Param employee_count_min query integer false "Minimum employee count"
// @Param employee_count_max query integer false "Maximum employee count"
// @Param annual_revenue_min query number false "Minimum annual revenue"
// @Param annual_revenue_max query number false "Maximum annual revenue"
// @Param founded_year_min query integer false "Minimum founded year"
// @Param founded_year_max query integer false "Maximum founded year"
// @Param limit query integer false "Number of companies per page (1-100)" minimum(1) maximum(100) default(20)
// @Param offset query integer false "Number of companies to skip for pagination" minimum(0) default(0)
// @Param sort_by query string false "Field to sort by" Enums(name, type, industry, created_at, updated_at, status, employee_count, annual_revenue) default(created_at)
// @Param sort_order query string false "Sort order" Enums(asc, desc) default(desc)
// @Success 200 {object} response.APIResponse{data=CompanyListResponse} "Companies retrieved successfully"
// @Failure 400 {object} response.APIResponse "Bad request - Invalid query parameters"
// @Failure 422 {object} response.APIResponse "Validation error - Invalid query parameters"
// @Failure 500 {object} response.APIResponse "Internal server error"
// @Security BearerAuth
// @Router /admin/v1/companies [get]
func (h *Handler) ListCompanies(c echo.Context) error {
	form, err := response.Parse[ListCompaniesForm](c)
	if err != nil {
		return response.ValidationError(c, "Invalid request data", err.Error())
	}

	result, err := h.service.ListCompanies(c.Request().Context(), form)
	if err != nil {
		return response.InternalServerError(c, "Failed to list companies")
	}

	return response.Success(c, result, "Companies retrieved successfully")
}

// SearchCompanies searches companies with advanced filters (Web Panel)
// @Summary Advanced search for companies
// @Description Search companies with advanced filtering capabilities including tags, business criteria, and location
// @Tags Companies-Admin
// @Accept json
// @Produce json
// @Param q query string false "Search query"
// @Param cpv_codes query array false "CPV codes filter"
// @Param categories query array false "Categories filter"
// @Param keywords query array false "Keywords filter"
// @Param specializations query array false "Specializations filter"
// @Param industry query string false "Industry filter"
// @Param location query string false "Location filter"
// @Param min_employees query integer false "Minimum employees"
// @Param max_employees query integer false "Maximum employees"
// @Param min_revenue query number false "Minimum revenue"
// @Param max_revenue query number false "Maximum revenue"
// @Param is_verified query boolean false "Verification status"
// @Param is_compliant query boolean false "Compliance status"
// @Param limit query integer false "Limit" default(20)
// @Param offset query integer false "Offset" default(0)
// @Success 200 {object} response.APIResponse{data=CompanyListResponse} "Companies search completed"
// @Failure 400 {object} response.APIResponse "Bad request - Invalid query parameters"
// @Failure 422 {object} response.APIResponse "Validation error - Invalid query parameters"
// @Failure 500 {object} response.APIResponse "Internal server error"
// @Security BearerAuth
// @Router /admin/v1/companies/search [get]
func (h *Handler) SearchCompanies(c echo.Context) error {
	form, err := response.Parse[CompanySearchForm](c)
	if err != nil {
		return response.ValidationError(c, "Invalid request data", err.Error())
	}

	result, err := h.service.SearchCompanies(c.Request().Context(), form)
	if err != nil {
		return response.InternalServerError(c, "Failed to search companies")
	}

	return response.Success(c, result, "Companies search completed")
}

// UpdateCompanyStatus updates company status (Web Panel)
// @Summary Update company status
// @Description Update company account status (active, inactive, suspended, pending)
// @Tags Companies-Admin
// @Accept json
// @Produce json
// @Param id path string true "Company ID"
// @Param status body UpdateCompanyStatusForm true "New company status"
// @Success 200 {object} response.APIResponse "Company status updated successfully"
// @Failure 400 {object} response.APIResponse "Bad request - Invalid input data"
// @Failure 404 {object} response.APIResponse "Not found - Company not found"
// @Failure 422 {object} response.APIResponse "Validation error - Invalid request data"
// @Failure 500 {object} response.APIResponse "Internal server error"
// @Security BearerAuth
// @Router /admin/v1/companies/{id}/status [patch]
func (h *Handler) UpdateCompanyStatus(c echo.Context) error {
	id := c.Param("id")
	form, err := response.Parse[UpdateCompanyStatusForm](c)
	if err != nil {
		return response.ValidationError(c, "Invalid request data", err.Error())
	}

	// Get user ID from JWT token context
	updatedBy, err := user.GetUserIDFromContext(c)
	if err != nil {
		return response.Unauthorized(c, "User not authenticated")
	}

	err = h.service.UpdateCompanyStatus(c.Request().Context(), id, form, &updatedBy)
	if err != nil {
		if err.Error() == "company not found" {
			return response.NotFound(c, "Company not found")
		}
		return response.InternalServerError(c, "Failed to update company status")
	}

	return response.Success(c, map[string]interface{}{
		"message": "Company status updated successfully",
	}, "Company status updated successfully")
}

// UpdateCompanyVerification updates company verification status (Web Panel)
// @Summary Update company verification status
// @Description Update company verification and compliance status
// @Tags Companies-Admin
// @Accept json
// @Produce json
// @Param id path string true "Company ID"
// @Param verification body UpdateCompanyVerificationForm true "Verification status update"
// @Success 200 {object} response.APIResponse "Company verification updated successfully"
// @Failure 400 {object} response.APIResponse "Bad request - Invalid input data"
// @Failure 404 {object} response.APIResponse "Not found - Company not found"
// @Failure 422 {object} response.APIResponse "Validation error - Invalid request data"
// @Failure 500 {object} response.APIResponse "Internal server error"
// @Security BearerAuth
// @Router /admin/v1/companies/{id}/verification [patch]
func (h *Handler) UpdateCompanyVerification(c echo.Context) error {
	id := c.Param("id")
	form, err := response.Parse[UpdateCompanyVerificationForm](c)
	if err != nil {
		return response.ValidationError(c, "Invalid request data", err.Error())
	}

	// Get user ID from JWT token context
	updatedBy, err := user.GetUserIDFromContext(c)
	if err != nil {
		return response.Unauthorized(c, "User not authenticated")
	}

	err = h.service.UpdateCompanyVerification(c.Request().Context(), id, form, &updatedBy)
	if err != nil {
		if err.Error() == "company not found" {
			return response.NotFound(c, "Company not found")
		}
		return response.InternalServerError(c, "Failed to update company verification")
	}

	return response.Success(c, map[string]interface{}{
		"message": "Company verification updated successfully",
	}, "Company verification updated successfully")
}

// UpdateCompanyTags updates company tags (Web Panel)
// @Summary Update company tags
// @Description Update company tags (CPV, categories, keywords, specializations, certifications)
// @Tags Companies-Admin
// @Accept json
// @Produce json
// @Param id path string true "Company ID"
// @Param tags body UpdateCompanyTagsForm true "Tags update information"
// @Success 200 {object} response.APIResponse "Company tags updated successfully"
// @Failure 400 {object} response.APIResponse "Bad request - Invalid input data"
// @Failure 404 {object} response.APIResponse "Not found - Company not found"
// @Failure 422 {object} response.APIResponse "Validation error - Invalid request data"
// @Failure 500 {object} response.APIResponse "Internal server error"
// @Security BearerAuth
// @Router /admin/v1/companies/{id}/tags [put]
func (h *Handler) UpdateCompanyTags(c echo.Context) error {
	id := c.Param("id")
	form, err := response.Parse[UpdateCompanyTagsForm](c)
	if err != nil {
		return response.ValidationError(c, "Invalid request data", err.Error())
	}

	// Get user ID from JWT token context
	updatedBy, err := user.GetUserIDFromContext(c)
	if err != nil {
		return response.Unauthorized(c, "User not authenticated")
	}

	err = h.service.UpdateCompanyTags(c.Request().Context(), id, form, &updatedBy)
	if err != nil {
		if err.Error() == "company not found" {
			return response.NotFound(c, "Company not found")
		}
		return response.InternalServerError(c, "Failed to update company tags")
	}

	return response.Success(c, map[string]interface{}{
		"message": "Company tags updated successfully",
	}, "Company tags updated successfully")
}

// AddTags adds tags to a company (Web Panel)
// @Summary Add tags to company
// @Description Add specific tags to a company
// @Tags Companies-Admin
// @Accept json
// @Produce json
// @Param id path string true "Company ID"
// @Param tags body AddTagsForm true "Tags to add"
// @Success 200 {object} response.APIResponse "Tags added successfully"
// @Failure 400 {object} response.APIResponse "Bad request - Invalid input data"
// @Failure 404 {object} response.APIResponse "Not found - Company not found"
// @Failure 422 {object} response.APIResponse "Validation error - Invalid request data"
// @Failure 500 {object} response.APIResponse "Internal server error"
// @Security BearerAuth
// @Router /admin/v1/companies/{id}/tags/add [post]
func (h *Handler) AddTags(c echo.Context) error {
	id := c.Param("id")
	form, err := response.Parse[AddTagsForm](c)
	if err != nil {
		return response.ValidationError(c, "Invalid request data", err.Error())
	}

	// Get user ID from JWT token context
	updatedBy, err := user.GetUserIDFromContext(c)
	if err != nil {
		return response.Unauthorized(c, "User not authenticated")
	}

	err = h.service.AddTags(c.Request().Context(), id, form, &updatedBy)
	if err != nil {
		if err.Error() == "company not found" {
			return response.NotFound(c, "Company not found")
		}
		return response.InternalServerError(c, "Failed to add tags")
	}

	return response.Success(c, map[string]interface{}{
		"message": "Tags added successfully",
	}, "Tags added successfully")
}

// RemoveTags removes tags from a company (Web Panel)
// @Summary Remove tags from company
// @Description Remove specific tags from a company
// @Tags Companies-Admin
// @Accept json
// @Produce json
// @Param id path string true "Company ID"
// @Param tags body RemoveTagsForm true "Tags to remove"
// @Success 200 {object} response.APIResponse "Tags removed successfully"
// @Failure 400 {object} response.APIResponse "Bad request - Invalid input data"
// @Failure 404 {object} response.APIResponse "Not found - Company not found"
// @Failure 422 {object} response.APIResponse "Validation error - Invalid request data"
// @Failure 500 {object} response.APIResponse "Internal server error"
// @Security BearerAuth
// @Router /admin/v1/companies/{id}/tags/remove [post]
func (h *Handler) RemoveTags(c echo.Context) error {
	id := c.Param("id")
	form, err := response.Parse[RemoveTagsForm](c)
	if err != nil {
		return response.ValidationError(c, "Invalid request data", err.Error())
	}

	// Get user ID from JWT token context
	updatedBy, err := user.GetUserIDFromContext(c)
	if err != nil {
		return response.Unauthorized(c, "User not authenticated")
	}

	err = h.service.RemoveTags(c.Request().Context(), id, form, &updatedBy)
	if err != nil {
		if err.Error() == "company not found" {
			return response.NotFound(c, "Company not found")
		}
		return response.InternalServerError(c, "Failed to remove tags")
	}

	return response.Success(c, map[string]interface{}{
		"message": "Tags removed successfully",
	}, "Tags removed successfully")
}

// VerifyCompany verifies a company (Web Panel)
// @Summary Verify company
// @Description Mark a company as verified
// @Tags Companies-Admin
// @Accept json
// @Produce json
// @Param id path string true "Company ID"
// @Success 200 {object} response.APIResponse "Company verified successfully"
// @Failure 400 {object} response.APIResponse "Bad request - Invalid company ID"
// @Failure 404 {object} response.APIResponse "Not found - Company not found"
// @Failure 500 {object} response.APIResponse "Internal server error"
// @Security BearerAuth
// @Router /admin/v1/companies/{id}/verify [post]
func (h *Handler) VerifyCompany(c echo.Context) error {
	id := c.Param("id")

	// Get user ID from JWT token context
	verifiedBy, err := user.GetUserIDFromContext(c)
	if err != nil {
		return response.Unauthorized(c, "User not authenticated")
	}

	err = h.service.VerifyCompany(c.Request().Context(), id, &verifiedBy)
	if err != nil {
		if err.Error() == "company not found" {
			return response.NotFound(c, "Company not found")
		}
		return response.InternalServerError(c, "Failed to verify company")
	}

	return response.Success(c, map[string]interface{}{
		"message": "Company verified successfully",
	}, "Company verified successfully")
}

// SuspendCompany suspends a company (Web Panel)
// @Summary Suspend company
// @Description Suspend a company account with reason
// @Tags Companies-Admin
// @Accept json
// @Produce json
// @Param id path string true "Company ID"
// @Param suspension body SuspendCompanyForm true "Suspension information"
// @Success 200 {object} response.APIResponse "Company suspended successfully"
// @Failure 400 {object} response.APIResponse "Bad request - Invalid input data"
// @Failure 404 {object} response.APIResponse "Not found - Company not found"
// @Failure 422 {object} response.APIResponse "Validation error - Invalid request data"
// @Failure 500 {object} response.APIResponse "Internal server error"
// @Security BearerAuth
// @Router /admin/v1/companies/{id}/suspend [post]
func (h *Handler) SuspendCompany(c echo.Context) error {
	id := c.Param("id")
	form, err := response.Parse[SuspendCompanyForm](c)
	if err != nil {
		return response.ValidationError(c, "Invalid request data", err.Error())
	}

	// Get user ID from JWT token context
	suspendedBy, err := user.GetUserIDFromContext(c)
	if err != nil {
		return response.Unauthorized(c, "User not authenticated")
	}

	err = h.service.SuspendCompany(c.Request().Context(), id, form.Reason, &suspendedBy)
	if err != nil {
		if err.Error() == "company not found" {
			return response.NotFound(c, "Company not found")
		}
		return response.InternalServerError(c, "Failed to suspend company")
	}

	return response.Success(c, map[string]interface{}{
		"message": "Company suspended successfully",
	}, "Company suspended successfully")
}

// ActivateCompany activates a company (Web Panel)
// @Summary Activate company
// @Description Activate a suspended company account
// @Tags Companies-Admin
// @Accept json
// @Produce json
// @Param id path string true "Company ID"
// @Success 200 {object} response.APIResponse "Company activated successfully"
// @Failure 400 {object} response.APIResponse "Bad request - Invalid company ID"
// @Failure 404 {object} response.APIResponse "Not found - Company not found"
// @Failure 500 {object} response.APIResponse "Internal server error"
// @Security BearerAuth
// @Router /admin/v1/companies/{id}/activate [post]
func (h *Handler) ActivateCompany(c echo.Context) error {
	id := c.Param("id")

	// Get user ID from JWT token context
	activatedBy, err := user.GetUserIDFromContext(c)
	if err != nil {
		return response.Unauthorized(c, "User not authenticated")
	}

	err = h.service.ActivateCompany(c.Request().Context(), id, &activatedBy)
	if err != nil {
		if err.Error() == "company not found" {
			return response.NotFound(c, "Company not found")
		}
		return response.InternalServerError(c, "Failed to activate company")
	}

	return response.Success(c, map[string]interface{}{
		"message": "Company activated successfully",
	}, "Company activated successfully")
}

// GetCompanyStats returns company statistics (Web Panel)
// @Summary Get company statistics
// @Description Get comprehensive company statistics for dashboard
// @Tags Companies-Admin
// @Accept json
// @Produce json
// @Success 200 {object} response.APIResponse{data=CompanyStatsResponse} "Company statistics retrieved successfully"
// @Failure 500 {object} response.APIResponse "Internal server error"
// @Security BearerAuth
// @Router /admin/v1/companies/stats [get]
func (h *Handler) GetCompanyStats(c echo.Context) error {
	stats, err := h.service.GetCompanyStats(c.Request().Context())
	if err != nil {
		return response.InternalServerError(c, "Failed to get company statistics")
	}

	return response.Success(c, stats, "Company statistics retrieved successfully")
}

// GetCompaniesByType retrieves companies by type (Web Panel)
// @Summary Get companies by type
// @Description Retrieve companies filtered by their type (private, public, government, ngo, startup)
// @Tags Companies-Admin
// @Accept json
// @Produce json
// @Param type path string true "Company type" Enums(private, public, government, ngo, startup)
// @Param limit query integer false "Number of companies per page (1-100)" minimum(1) maximum(100) default(20)
// @Param offset query integer false "Number of companies to skip for pagination" minimum(0) default(0)
// @Success 200 {object} response.APIResponse{data=[]CompanyResponse,meta=response.Meta} "Companies retrieved successfully"
// @Failure 400 {object} response.APIResponse "Bad request - Invalid company type"
// @Failure 500 {object} response.APIResponse "Internal server error"
// @Security BearerAuth
// @Router /admin/v1/companies/type/{type} [get]
func (h *Handler) GetCompaniesByType(c echo.Context) error {
	companyTypeStr := c.Param("type")
	companyType := CompanyType(companyTypeStr)

	// Validate company type
	if companyType != CompanyTypePrivate && companyType != CompanyTypePublic &&
		companyType != CompanyTypeGovernment && companyType != CompanyTypeNgo &&
		companyType != CompanyTypeStartup {
		return response.BadRequest(c, "Invalid company type", "Must be private, public, government, ngo, or startup")
	}

	limit := 20
	if limitStr := c.QueryParam("limit"); limitStr != "" {
		if parsedLimit, err := strconv.Atoi(limitStr); err == nil && parsedLimit > 0 && parsedLimit <= 100 {
			limit = parsedLimit
		}
	}

	offset := 0
	if offsetStr := c.QueryParam("offset"); offsetStr != "" {
		if parsedOffset, err := strconv.Atoi(offsetStr); err == nil && parsedOffset >= 0 {
			offset = parsedOffset
		}
	}

	companies, total, err := h.service.GetCompaniesByType(c.Request().Context(), companyType, limit, offset)
	if err != nil {
		return response.InternalServerError(c, "Failed to retrieve companies by type")
	}

	var companyResponses []*CompanyResponse
	for _, company := range companies {
		companyResponses = append(companyResponses, company.ToResponse())
	}

	meta := &response.Meta{
		Total:  int(total),
		Limit:  limit,
		Offset: offset,
	}

	return response.SuccessWithMeta(c, companyResponses, meta, "Companies retrieved successfully")
}

// GetCompaniesByStatus retrieves companies by status (Web Panel)
// @Summary Get companies by status
// @Description Retrieve companies filtered by their status (active, inactive, suspended, pending)
// @Tags Companies-Admin
// @Accept json
// @Produce json
// @Param status path string true "Company status" Enums(active, inactive, suspended, pending)
// @Param limit query integer false "Number of companies per page (1-100)" minimum(1) maximum(100) default(20)
// @Param offset query integer false "Number of companies to skip for pagination" minimum(0) default(0)
// @Success 200 {object} response.APIResponse{data=[]CompanyResponse,meta=response.Meta} "Companies retrieved successfully"
// @Failure 400 {object} response.APIResponse "Bad request - Invalid company status"
// @Failure 500 {object} response.APIResponse "Internal server error"
// @Security BearerAuth
// @Router /admin/v1/companies/status/{status} [get]
func (h *Handler) GetCompaniesByStatus(c echo.Context) error {
	statusStr := c.Param("status")
	status := CompanyStatus(statusStr)

	// Validate company status
	if status != CompanyStatusActive && status != CompanyStatusInactive &&
		status != CompanyStatusSuspended && status != CompanyStatusPending {
		return response.BadRequest(c, "Invalid company status", "Must be active, inactive, suspended, or pending")
	}

	limit := 20
	if limitStr := c.QueryParam("limit"); limitStr != "" {
		if parsedLimit, err := strconv.Atoi(limitStr); err == nil && parsedLimit > 0 && parsedLimit <= 100 {
			limit = parsedLimit
		}
	}

	offset := 0
	if offsetStr := c.QueryParam("offset"); offsetStr != "" {
		if parsedOffset, err := strconv.Atoi(offsetStr); err == nil && parsedOffset >= 0 {
			offset = parsedOffset
		}
	}

	companies, total, err := h.service.GetCompaniesByStatus(c.Request().Context(), status, limit, offset)
	if err != nil {
		return response.InternalServerError(c, "Failed to retrieve companies by status")
	}

	var companyResponses []*CompanyResponse
	for _, company := range companies {
		companyResponses = append(companyResponses, company.ToResponse())
	}

	meta := &response.Meta{
		Total:  int(total),
		Limit:  limit,
		Offset: offset,
	}

	return response.SuccessWithMeta(c, companyResponses, meta, "Companies retrieved successfully")
}

// GetCompaniesByIndustry retrieves companies by industry (Web Panel)
// @Summary Get companies by industry
// @Description Retrieve companies filtered by their industry
// @Tags Companies-Admin
// @Accept json
// @Produce json
// @Param industry path string true "Industry"
// @Param limit query integer false "Number of companies per page (1-100)" minimum(1) maximum(100) default(20)
// @Param offset query integer false "Number of companies to skip for pagination" minimum(0) default(0)
// @Success 200 {object} response.APIResponse{data=[]CompanyResponse,meta=response.Meta} "Companies retrieved successfully"
// @Failure 400 {object} response.APIResponse "Bad request - Invalid industry"
// @Failure 500 {object} response.APIResponse "Internal server error"
// @Security BearerAuth
// @Router /admin/v1/companies/industry/{industry} [get]
func (h *Handler) GetCompaniesByIndustry(c echo.Context) error {
	industry := c.Param("industry")

	limit := 20
	if limitStr := c.QueryParam("limit"); limitStr != "" {
		if parsedLimit, err := strconv.Atoi(limitStr); err == nil && parsedLimit > 0 && parsedLimit <= 100 {
			limit = parsedLimit
		}
	}

	offset := 0
	if offsetStr := c.QueryParam("offset"); offsetStr != "" {
		if parsedOffset, err := strconv.Atoi(offsetStr); err == nil && parsedOffset >= 0 {
			offset = parsedOffset
		}
	}

	companies, total, err := h.service.GetCompaniesByIndustry(c.Request().Context(), industry, limit, offset)
	if err != nil {
		return response.InternalServerError(c, "Failed to retrieve companies by industry")
	}

	var companyResponses []*CompanyResponse
	for _, company := range companies {
		companyResponses = append(companyResponses, company.ToResponse())
	}

	meta := &response.Meta{
		Total:  int(total),
		Limit:  limit,
		Offset: offset,
	}

	return response.SuccessWithMeta(c, companyResponses, meta, "Companies retrieved successfully")
}