const prisma = require('../../../helpers/db/db_connection');

class TaskRepository {
  async findProjectById(idProject) {
    return prisma.project.findUnique({
      where: {
        id: parseInt(idProject),
      },
      include: {
        members: {
          where: {
            status: 'active',
          },
          select: {
            id: true,
            id_user: true,
          },
        },
      },
    });
  }

  async createTask(taskData) {
    return prisma.task.create({
      data: taskData,
    });
  }

  async findTasksByProject(idProject) {
    return prisma.task.findMany({
      where: {
        id_project: parseInt(idProject),
      },
      orderBy: {
        deadline_at: 'asc',
      },
      include: {
        submissions: {
          select: {
            id: true,
            id_task: true,
            id_user: true,
            file_path: true,
            url_link: true,
            submitted_at: true,
            updated_at: true,
            files: {
              select: this.submissionFileSelect(),
              orderBy: {
                id: 'asc'
              }
            }
          },
        },
      },
    });
  }

  async findTaskById(idTask) {
    return prisma.task.findUnique({
      where: {
        id: parseInt(idTask),
      },
      include: {
        project: {
          select: {
            id: true,
            id_admin: true,
            slug: true,
            project_name: true,
            project_icon: true,
            status: true,
            members: {
              where: {
                status: 'active',
              },
              include: {
                user: {
                  select: {
                    id: true,
                    full_name: true,
                    email: true,
                    professional_bio: true,
                  },
                },
              },
            },
          },
        },
        submissions: {
          include: {
            user: {
              select: {
                id: true,
                full_name: true,
                email: true,
                professional_bio: true,
              },
            },
            files: {
              select: this.submissionFileSelect(),
              orderBy: {
                id: 'asc'
              }
            }
          },
        },
      },
    });
  }

  async updateTask(idTask, taskData) {
    return prisma.task.update({
      where: {
        id: parseInt(idTask),
      },
      data: taskData,
    });
  }

  async deleteTask(idTask) {
    return prisma.task.delete({
      where: {
        id: parseInt(idTask),
      },
    });
  }

  async countSubmissionsByTask(idTask) {
    return prisma.taskSubmission.count({
      where: {
        id_task: parseInt(idTask),
      },
    });
  }

  async checkActiveProjectMember(idProject, idUser) {
    return prisma.projectMember.findFirst({
      where: {
        id_project: parseInt(idProject),
        id_user: parseInt(idUser),
        status: 'active',
      },
    });
  }

  async findSubmissionByTaskAndUser(idTask, idUser) {
    return prisma.taskSubmission.findUnique({
      where: {
        id_task_id_user: {
          id_task: parseInt(idTask),
          id_user: parseInt(idUser),
        },
      },
      include: {
        files: {
          select: this.submissionFileSelect(),
          orderBy: {
            id: 'asc',
          }
        }
      }
    });
  }

  async findSubmissionById(idSubmission) {
    return prisma.taskSubmission.findUnique({
      where: {
        id: parseInt(idSubmission),
      },
      include: {
        task: {
          select: {
            id: true,
            id_project: true,
            title: true,
            submission_type: true,
            deadline_at: true,
            project: {
              select: {
                id: true,
                project_name: true,
                status: true,
              },
            },
          },
        },
        user: {
          select: {
            id: true,
            full_name: true,
            email: true,
          },
        },
        files: {
          select: this.submissionFileSelect(),
          orderBy: {
            id: 'asc',
          }
        }
      },
    });
  }

  async createSubmission(submissionData, filesData = []) {
    return prisma.taskSubmission.create({
      data: {
        ...submissionData,
        files: filesData.length > 0
          ? {
              create: filesData,
            }
          : undefined,
      },
      include: {
        files: {
          select: this.submissionFileSelect(),
          orderBy: {
            id: 'asc',
          },
        },
      },
    });
  }

  async updateSubmission(idSubmission, submissionData, filesData = null) {
    return prisma.$transaction(async (tx) => {
      const submissionId = parseInt(idSubmission);

      await tx.taskSubmission.update({
        where: {
          id: submissionId,
        },
        data: submissionData,
      });

      if (filesData !== null) {
        await tx.taskSubmissionFile.deleteMany({
          where: {
            id_submission: submissionId,
          },
        });

        if (filesData.length > 0) {
          await tx.taskSubmissionFile.createMany({
            data: filesData.map((file) => ({
              ...file,
              id_submission: submissionId,
            })),
          });
        }
      }

      return tx.taskSubmission.findUnique({
        where: {
          id: submissionId,
        },
        include: {
          files: {
            select: {
              id: true,
              file_path: true,
              original_name: true,
              mime_type: true,
              size_bytes: true,
              created_at: true,
            },
            orderBy: {
              id: 'asc',
            },
          },
        },
      });
    });
  }

  async deleteSubmission(idSubmission) {
    return prisma.taskSubmission.delete({
      where: {
        id: parseInt(idSubmission),
      },
    });
  }

  async findProjectByIdOrSlug(identifier) {
    if (/^\d+$/.test(String(identifier))) {
      return this.findProjectById(identifier);
    }

    return prisma.project.findUnique({
      where: {
        slug: identifier,
      },
      include: {
        members: {
          where: {
            status: 'active',
          },
          select: {
            id: true,
            id_user: true,
          },
        },
      },
    });
  }

  async findTaskBySlug(idProject, slug) {
    return prisma.task.findUnique({
      where: {
        id_project_slug: {
          id_project: parseInt(idProject),
          slug,
        },
      },
      include: {
        project: {
          select: {
            id: true,
            id_admin: true,
            slug: true,
            project_name: true,
            project_icon: true,
            status: true,
            members: {
              where: {
                status: 'active',
              },
              include: {
                user: {
                  select: {
                    id: true,
                    full_name: true,
                    email: true,
                    professional_bio: true,
                  },
                },
              },
            },
          },
        },
        submissions: {
          include: {
            user: {
              select: {
                id: true,
                full_name: true,
                email: true,
                professional_bio: true,
              },
            },
            files: {
              select: this.submissionFileSelect(),
              orderBy: {
                id: 'asc'
              }
            }
          },
        },
      },
    });
  }

  async findTaskSlugExists(idProject, slug, excludeTaskId = null) {
    const where = {
      id_project: parseInt(idProject),
      slug,
    };

    if (excludeTaskId) {
      where.id = {
        not: parseInt(excludeTaskId),
      };
    }

    const task = await prisma.task.findFirst({
      where,
      select: {
        id: true,
      },
    });

    return Boolean(task);
  }

  submissionFileSelect() {
    return {
      id: true,
      file_path: true,
      original_name: true,
      mime_type: true,
      size_bytes: true,
      created_at: true,
    };
  }
}

module.exports = new TaskRepository();