package data

import (
	"context"

	"github.com/mark3labs/mcp-go/mcp"

	"fwh-toolbox-server/cmd/mcp/tools/helper"
)

// planeV2RawResult 将 Plane V2 API 返回的原始 JSON bytes 转为 MCP 结果。
// 原始字节先经流式 PII 脱敏（优化 B），脱敏失败（含非法 JSON）则返回错误、拒绝输出。
// 结果较大时自动落盘到本地文件（/tmp/fwh-toolbox-agent/results/），
// 返回 localPath + 预览，避免大数据占用 LLM 上下文。
func planeV2RawResult(data []byte, err error, action string) (*mcp.CallToolResult, error) {
	if err != nil {
		return helper.ServiceError(action, err), nil
	}
	return helper.BytesResultOrFileMasked(data, "plane_v2_"+action), nil
}

// requireSlugProject 校验并返回必填的 workspace_slug 与 project_id。
// 缺失时返回对应的 ParamError（errResult 非 nil，调用方应直接返回它）。
func requireSlugProject(req mcp.CallToolRequest) (slug, projectId string, errResult *mcp.CallToolResult) {
	slug, err := req.RequireString("workspace_slug")
	if err != nil {
		return "", "", helper.ParamError("workspace_slug")
	}
	projectId, err = req.RequireString("project_id")
	if err != nil {
		return "", "", helper.ParamError("project_id")
	}
	return slug, projectId, nil
}

// === Workspace Handlers ===

func handlePlaneV2ListWorkspaces(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	data, err := planeV2Svc.ListWorkspaces()
	return planeV2RawResult(data, err, "列出工作空间")
}

func handlePlaneV2GetWorkspace(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	slug, err := req.RequireString("workspace_slug")
	if err != nil {
		return helper.ParamError("workspace_slug"), nil
	}
	data, apiErr := planeV2Svc.GetWorkspace(slug)
	return planeV2RawResult(data, apiErr, "获取工作空间详情")
}

// === Project Handlers ===

func handlePlaneV2ListProjects(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	slug, err := req.RequireString("workspace_slug")
	if err != nil {
		return helper.ParamError("workspace_slug"), nil
	}
	data, apiErr := planeV2Svc.ListProjects(slug)
	return planeV2RawResult(data, apiErr, "列出项目")
}

func handlePlaneV2GetProject(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	slug, projectId, errRes := requireSlugProject(req)
	if errRes != nil {
		return errRes, nil
	}
	data, apiErr := planeV2Svc.GetProject(slug, projectId)
	return planeV2RawResult(data, apiErr, "获取项目详情")
}

// === Issue Handlers ===

func handlePlaneV2ListIssues(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	slug, projectId, errRes := requireSlugProject(req)
	if errRes != nil {
		return errRes, nil
	}
	data, err := planeV2Svc.ListIssues(slug, projectId)
	return planeV2RawResult(data, err, "列出工作项")
}

func handlePlaneV2GetIssue(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	slug, projectId, errRes := requireSlugProject(req)
	if errRes != nil {
		return errRes, nil
	}
	issueId, err := req.RequireString("issue_id")
	if err != nil {
		return helper.ParamError("issue_id"), nil
	}
	data, apiErr := planeV2Svc.GetIssue(slug, projectId, issueId)
	return planeV2RawResult(data, apiErr, "获取工作项详情")
}

func handlePlaneV2GetSubIssues(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	slug, projectId, errRes := requireSlugProject(req)
	if errRes != nil {
		return errRes, nil
	}
	issueId, err := req.RequireString("issue_id")
	if err != nil {
		return helper.ParamError("issue_id"), nil
	}
	data, apiErr := planeV2Svc.GetSubIssues(slug, projectId, issueId)
	return planeV2RawResult(data, apiErr, "获取子工作项")
}

func handlePlaneV2GetIssueActivity(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	slug, projectId, errRes := requireSlugProject(req)
	if errRes != nil {
		return errRes, nil
	}
	issueId, err := req.RequireString("issue_id")
	if err != nil {
		return helper.ParamError("issue_id"), nil
	}
	data, apiErr := planeV2Svc.GetIssueActivity(slug, projectId, issueId)
	return planeV2RawResult(data, apiErr, "获取工作项活动历史")
}

// === Intake Handlers ===

func handlePlaneV2ListIntakeIssues(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	slug, projectId, errRes := requireSlugProject(req)
	if errRes != nil {
		return errRes, nil
	}
	status := req.GetString("status", "")
	data, err := planeV2Svc.ListIntakeIssues(slug, projectId, status)
	return planeV2RawResult(data, err, "列出收件箱工作项")
}

func handlePlaneV2GetIntakeIssue(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	slug, projectId, errRes := requireSlugProject(req)
	if errRes != nil {
		return errRes, nil
	}
	issueId, err := req.RequireString("issue_id")
	if err != nil {
		return helper.ParamError("issue_id"), nil
	}
	data, apiErr := planeV2Svc.GetIntakeIssue(slug, projectId, issueId)
	return planeV2RawResult(data, apiErr, "获取收件箱工作项详情")
}

// === Cycle Handlers ===

func handlePlaneV2ListCycles(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	slug, projectId, errRes := requireSlugProject(req)
	if errRes != nil {
		return errRes, nil
	}
	data, err := planeV2Svc.ListCycles(slug, projectId)
	return planeV2RawResult(data, err, "列出周期")
}

func handlePlaneV2GetCycle(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	slug, projectId, errRes := requireSlugProject(req)
	if errRes != nil {
		return errRes, nil
	}
	cycleId, err := req.RequireString("cycle_id")
	if err != nil {
		return helper.ParamError("cycle_id"), nil
	}
	data, apiErr := planeV2Svc.GetCycle(slug, projectId, cycleId)
	return planeV2RawResult(data, apiErr, "获取周期详情")
}

// === Module Handlers ===

func handlePlaneV2ListModules(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	slug, projectId, errRes := requireSlugProject(req)
	if errRes != nil {
		return errRes, nil
	}
	data, err := planeV2Svc.ListModules(slug, projectId)
	return planeV2RawResult(data, err, "列出模块")
}

func handlePlaneV2GetModule(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	slug, projectId, errRes := requireSlugProject(req)
	if errRes != nil {
		return errRes, nil
	}
	moduleId, err := req.RequireString("module_id")
	if err != nil {
		return helper.ParamError("module_id"), nil
	}
	data, apiErr := planeV2Svc.GetModule(slug, projectId, moduleId)
	return planeV2RawResult(data, apiErr, "获取模块详情")
}

// === Label Handlers ===

func handlePlaneV2ListLabels(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	slug, projectId, errRes := requireSlugProject(req)
	if errRes != nil {
		return errRes, nil
	}
	data, err := planeV2Svc.ListLabels(slug, projectId)
	return planeV2RawResult(data, err, "列出标签")
}

// === State Handlers ===

func handlePlaneV2ListStates(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	slug, projectId, errRes := requireSlugProject(req)
	if errRes != nil {
		return errRes, nil
	}
	data, err := planeV2Svc.ListStates(slug, projectId)
	return planeV2RawResult(data, err, "列出状态")
}

// === Page Handlers ===

func handlePlaneV2ListPages(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	slug, projectId, errRes := requireSlugProject(req)
	if errRes != nil {
		return errRes, nil
	}
	data, err := planeV2Svc.ListPages(slug, projectId)
	return planeV2RawResult(data, err, "列出页面")
}

func handlePlaneV2GetPage(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	slug, projectId, errRes := requireSlugProject(req)
	if errRes != nil {
		return errRes, nil
	}
	pageId, err := req.RequireString("page_id")
	if err != nil {
		return helper.ParamError("page_id"), nil
	}
	data, apiErr := planeV2Svc.GetPage(slug, projectId, pageId)
	return planeV2RawResult(data, apiErr, "获取页面详情")
}

func handlePlaneV2GetPageDescription(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	slug, projectId, errRes := requireSlugProject(req)
	if errRes != nil {
		return errRes, nil
	}
	pageId, err := req.RequireString("page_id")
	if err != nil {
		return helper.ParamError("page_id"), nil
	}
	data, apiErr := planeV2Svc.GetPageDescription(slug, projectId, pageId)
	return planeV2RawResult(data, apiErr, "获取页面描述内容")
}

// === Member Handlers ===

func handlePlaneV2ListWorkspaceMembers(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	slug, err := req.RequireString("workspace_slug")
	if err != nil {
		return helper.ParamError("workspace_slug"), nil
	}
	data, apiErr := planeV2Svc.ListWorkspaceMembers(slug)
	return planeV2RawResult(data, apiErr, "列出工作空间成员")
}

func handlePlaneV2ListProjectMembers(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	slug, projectId, errRes := requireSlugProject(req)
	if errRes != nil {
		return errRes, nil
	}
	data, err := planeV2Svc.ListProjectMembers(slug, projectId)
	return planeV2RawResult(data, err, "列出项目成员")
}

// === Sticky Handlers ===

func handlePlaneV2ListStickies(ctx context.Context, req mcp.CallToolRequest) (*mcp.CallToolResult, error) {
	slug, err := req.RequireString("workspace_slug")
	if err != nil {
		return helper.ParamError("workspace_slug"), nil
	}
	data, apiErr := planeV2Svc.ListStickies(slug)
	return planeV2RawResult(data, apiErr, "列出便签")
}