#pragma once

#include <map>
#include <mutex>
#include <set>
#include <string>
#include <vector>

namespace kanban {

struct Issue {
    std::string id;
    std::string title;
    std::string status;
    std::string type;
    std::string scope;
    std::string priority;
    std::vector<std::string> domain;
    std::vector<std::string> tags;
    std::vector<std::string> depends;
    std::vector<std::string> blocks;
    std::vector<std::string> related;
    std::string flow;
    std::string file_path;
    bool        completed = false;
    std::string body;  // only filled in detail GET
};

struct Flow {
    std::string id;
    std::string title;
    std::string status;
    std::string kind;
    std::vector<std::string> tags;
    std::string file_path;
    std::string body;
};

struct Meta {
    std::vector<std::string> statuses;
    std::vector<std::string> priorities;
    std::vector<std::string> scopes;
    std::vector<std::string> types;
};

struct Filters {
    std::set<std::string> domains;
    std::set<std::string> scopes;
    std::set<std::string> priorities;
    std::set<std::string> tags;
    bool include_completed = false;
    bool show_issues       = true;
    bool show_flows        = true;
};

struct State {
    std::mutex                          mu;
    std::string                         backend_url    = "http://127.0.0.1:8487";
    std::vector<Issue>                  issues;
    std::vector<Flow>                   flows;
    Meta                                meta;
    Filters                             filters;
    std::string                         selected_issue_id;
    Issue                               selected_issue_detail;
    bool                                loading        = false;
    std::string                         last_error;
    long long                           last_refresh_ns = 0;
    std::map<std::string, std::string>  agent_active;   // issue_id -> run_id
    bool                                agent_runner_up = false;
    std::string                         last_launch_msg;
};

State& state();

// HTTP operations (block briefly, called from background or coalesced).
bool refresh_issues();
bool refresh_flows();
bool refresh_meta();
bool refresh_issue_detail(const std::string& id);
bool patch_issue_status(const std::string& id, const std::string& new_status);
bool patch_issue_fields(const std::string& id, const std::string& json_partial);
bool refresh_agent_status();
bool launch_agent(const std::string& issue_id);
bool is_agent_active(const std::string& issue_id);

// Background SSE subscription (no-op if already started).
void start_sse();
void stop_sse();

// Filters helpers.
bool passes_filters(const Issue& iss);
std::vector<std::string> collect_domains();
std::vector<std::string> collect_tags();

}  // namespace kanban