export interface Skill {
  id: string;
  name: string;
  description: string;
  icon: string;
  categoryId: string;
  category: string;
  usageCount: number;
}

export interface Team {
  id: string;
  name: string;
  direction: string;
  memberCount: number;
}

export interface TeamMember {
  id: string;
  firstName: string;
  lastName: string;
  fullName: string;
  joinedAt: string;
}

export class AdminManagementService {
  private static baseUrl = "/api/admin";

  // Skills Management
  static async getSkills(): Promise<Skill[]> {
    const response = await fetch(`${this.baseUrl}/skills`);
    if (!response.ok) {
      throw new Error("Failed to fetch skills");
    }
    return response.json();
  }

  static async createSkill(
    skillData: Omit<Skill, "id" | "usageCount">
  ): Promise<Skill> {
    const response = await fetch(`${this.baseUrl}/skills`, {
      method: "POST",
      headers: {
        "Content-Type": "application/json",
      },
      body: JSON.stringify(skillData),
    });

    if (!response.ok) {
      const error = await response.json();
      throw new Error(error.error || "Failed to create skill");
    }

    return response.json();
  }

  static async updateSkill(skillData: Skill): Promise<Skill> {
    const response = await fetch(`${this.baseUrl}/skills`, {
      method: "PUT",
      headers: {
        "Content-Type": "application/json",
      },
      body: JSON.stringify(skillData),
    });

    if (!response.ok) {
      const error = await response.json();
      throw new Error(error.error || "Failed to update skill");
    }

    return response.json();
  }

  static async deleteSkill(skillId: string): Promise<void> {
    const response = await fetch(`${this.baseUrl}/skills?id=${skillId}`, {
      method: "DELETE",
    });

    if (!response.ok) {
      const error = await response.json();
      throw new Error(error.error || "Failed to delete skill");
    }
  }

  // Teams Management
  static async getTeams(): Promise<Team[]> {
    const response = await fetch(`${this.baseUrl}/teams`);
    if (!response.ok) {
      throw new Error("Failed to fetch teams");
    }
    return response.json();
  }

  static async createTeam(
    teamData: Omit<Team, "id" | "memberCount">
  ): Promise<Team> {
    const response = await fetch(`${this.baseUrl}/teams`, {
      method: "POST",
      headers: {
        "Content-Type": "application/json",
      },
      body: JSON.stringify(teamData),
    });

    if (!response.ok) {
      const error = await response.json();
      throw new Error(error.error || "Failed to create team");
    }

    return response.json();
  }

  static async updateTeam(teamData: Team): Promise<Team> {
    const response = await fetch(`${this.baseUrl}/teams`, {
      method: "PUT",
      headers: {
        "Content-Type": "application/json",
      },
      body: JSON.stringify(teamData),
    });

    if (!response.ok) {
      const error = await response.json();
      throw new Error(error.error || "Failed to update team");
    }

    return response.json();
  }

  static async deleteTeam(teamId: string): Promise<void> {
    const response = await fetch(`${this.baseUrl}/teams?id=${teamId}`, {
      method: "DELETE",
    });

    if (!response.ok) {
      const error = await response.json();
      throw new Error(error.error || "Failed to delete team");
    }
  }

  static async deleteDirection(direction: string): Promise<void> {
    const response = await fetch(
      `${this.baseUrl}/teams?direction=${encodeURIComponent(direction)}`,
      {
        method: "DELETE",
      }
    );

    if (!response.ok) {
      const error = await response.json();
      throw new Error(error.error || "Failed to delete direction");
    }
  }

  // Team Members
  static async getTeamMembers(teamId: string): Promise<TeamMember[]> {
    const response = await fetch(`${this.baseUrl}/teams/${teamId}/members`);
    if (!response.ok) {
      throw new Error("Failed to fetch team members");
    }
    return response.json();
  }

  static async removeTeamMember(
    teamId: string,
    memberId: string
  ): Promise<void> {
    const response = await fetch(`${this.baseUrl}/teams/${teamId}/members`, {
      method: "DELETE",
      headers: {
        "Content-Type": "application/json",
      },
      body: JSON.stringify({ memberId }),
    });

    if (!response.ok) {
      const error = await response.json();
      throw new Error(error.error || "Failed to remove team member");
    }
  }
}